Busbar trunking system
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual • 09/2011
Low-Voltage Power Distribution and
Electrical Installation Technology
Answers for infrastructure.
SIVACON 8PS - Planning with
SIVACON 8PS
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Low-voltage power distribution and
electrical installation technology
Busbar trunking system
SIVACON 8PS - Planning with
SIVACON 8PS
Planning Manual
Busbar trunking systems up to 6300 A
09/2011
A5E01541101-02
System overview
1
Planning principles
2
Planning with BD2
3
Planning with LD
4
Planning with LX
5
Planning with LR
6
Further information about
planning
7
Glossary
A
Legal information
Legal information
Warning notice system
This manual contains notices you have to observe in order to ensure your personal safety, as well as to prevent
damage to property. The notices referring to your personal safety are highlighted in the manual by a safety alert
symbol, notices referring only to property damage have no safety alert symbol. These notices shown below are
graded according to the degree of danger.
DANGER
indicates that death or severe personal injury will result if proper precautions are not taken.
WARNING
indicates that death or severe personal injury may result if proper precautions are not taken.
CAUTION
with a safety alert symbol, indicates that minor personal injury can result if proper precautions are not taken.
CAUTION
without a safety alert symbol, indicates that property damage can result if proper precautions are not taken.
NOTICE
indicates that an unintended result or situation can occur if the relevant information is not taken into account.
If more than one degree of danger is present, the warning notice representing the highest degree of danger will
be used. A notice warning of injury to persons with a safety alert symbol may also include a warning relating to
property damage.
Qualified Personnel
The product/system described in this documentation may be operated only by personnel qualified for the specific
task in accordance with the relevant documentation, in particular its warning notices and safety instructions.
Qualified personnel are those who, based on their training and experience, are capable of identifying risks and
avoiding potential hazards when working with these products/systems.
Proper use of Siemens products
Note the following:
WARNING
Siemens products may only be used for the applications described in the catalog and in the relevant technical
documentation. If products and components from other manufacturers are used, these must be recommended
or approved by Siemens. Proper transport, storage, installation, assembly, commissioning, operation and
maintenance are required to ensure that the products operate safely and without any problems. The permissible
ambient conditions must be complied with. The information in the relevant documentation must be observed.
Trademarks
All names identified by ® are registered trademarks of Siemens AG. The remaining trademarks in this publication
may be trademarks whose use by third parties for their own purposes could violate the rights of the owner.
Disclaimer of Liability
We have reviewed the contents of this publication to ensure consistency with the hardware and software
described. Since variance cannot be precluded entirely, we cannot guarantee full consistency. However, the
information in this publication is reviewed regularly and any necessary corrections are included in subsequent
editions.
Siemens AG
Industry Sector
Postfach 48 48
90026 NÜRNBERG
GERMANY
A5E01541101-02
Ⓟ 11/2011
Copyright © Siemens AG 2007.
Technical data subject to change
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 3
Table of contents
1 System overview........................................................................................................................................ 9
1.1 Overview of Siemens busbar trunking systems.............................................................................9
1.2 CD-K system................................................................................................................................13
1.3 BD01 system................................................................................................................................17
1.4 Networked busbar trunking systems for industrial and building applications ..............................20
2 Planning principles................................................................................................................................... 23
2.1 Structure of the planning manual.................................................................................................23
2.2 Busbar trunking system planning.................................................................................................24
2.2.1 Principles of busbar trunking system planning ............................................................................24
2.2.2 Different types of busbar trunking systems and their functional scope .......................................26
2.2.3 A comparison of busbar trunking systems and cable trunking ....................................................28
2.2.4 Planning guidelines......................................................................................................................30
2.3 Rated currents and short-circuit currents of standard transformers ............................................32
2.4 System selection criteria ..............................................................................................................33
2.4.1 Technical data of the systems .....................................................................................................33
2.4.2 Areas of application for high-current systems..............................................................................36
2.4.3 Selection on the basis of rated transformer data.........................................................................37
3 Planning with BD2 ................................................................................................................................... 39
3.1 System description.......................................................................................................................39
3.2 System components ....................................................................................................................40
3.2.1 Preliminary remark for specifications...........................................................................................40
3.2.2 Type code ....................................................................................................................................42
3.2.3 Straight trunking units ..................................................................................................................45
3.2.4 Junction units ...............................................................................................................................46
3.2.5 Feeder units .................................................................................................................................49
3.2.5.1 End feeder units...........................................................................................................................49
3.2.5.2 Centre feeder units ......................................................................................................................51
3.2.6 Distribution board feeder..............................................................................................................52
3.2.7 Coupling units ..............................................................................................................................53
3.2.8 Tap-off units .................................................................................................................................54
3.2.8.1 Tap-off units up to 25 A................................................................................................................54
3.2.8.2 Tap-off units up to 63 A................................................................................................................55
3.2.8.3 Tap-off units up to 125 A..............................................................................................................57
3.2.8.4 Tap-off units up to 250 A..............................................................................................................59
3.2.8.5 Tap-off units up to 400 A..............................................................................................................60
3.2.8.6 Tap-off units up to 530 A..............................................................................................................61
3.2.9 Ancillary equipment units.............................................................................................................62
3.2.10 Additional equipment ...................................................................................................................63
3.2.10.1 Additional equipment for increased degree of protection IP54 and IP55 ....................................63
3.2.10.2 Fixing accessories .......................................................................................................................63
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3.3 Technical data............................................................................................................................. 65
3.3.1 BD2 general data ........................................................................................................................ 65
3.3.2 Tap-off units ................................................................................................................................ 66
3.3.3 Trunking units BD2A (aluminium) ............................................................................................... 66
3.3.4 Trunking units BD2A (copper)..................................................................................................... 69
3.4 Conductor cross sections............................................................................................................ 73
3.4.1 Feeder units ................................................................................................................................ 73
3.4.2 Tap-off units ................................................................................................................................ 75
3.5 Dimension drawings.................................................................................................................... 77
3.5.1 Straight trunking units ................................................................................................................. 77
3.5.2 Junction units .............................................................................................................................. 78
3.5.3 Distribution board feeder............................................................................................................. 83
3.5.4 End feeder units .......................................................................................................................... 84
3.5.5 Cable compartments ................................................................................................................... 88
3.5.6 Centre feed ................................................................................................................................. 89
3.5.7 Tap-off units ................................................................................................................................ 90
3.5.7.1 Tap-off units up to 25 A............................................................................................................... 90
3.5.7.2 Tap-off units up to 63 A............................................................................................................... 92
3.5.7.3 Tap-off units up to 125 A............................................................................................................. 95
3.5.7.4 Tap-off units up to 250 A............................................................................................................. 98
3.5.7.5 Tap-off units up to 530 A............................................................................................................. 99
3.5.8 Ancillary equipment units .......................................................................................................... 100
3.5.9 Additional equipment................................................................................................................. 101
4 Planning with LD.................................................................................................................................... 107
4.1 System description.................................................................................................................... 107
4.2 System components.................................................................................................................. 108
4.2.1 Preliminary technical descriptions for specifications................................................................. 108
4.2.2 Type code.................................................................................................................................. 110
4.2.3 Sizes, conductor configurations and structure of the busbar package ..................................... 111
4.2.4 Straight trunking units ............................................................................................................... 114
4.2.5 Junction units ............................................................................................................................ 117
4.2.6 Distribution link for Siemens power distribution boards............................................................ 119
4.2.7 Connection unit for non-Siemens distribution boards ............................................................... 120
4.2.8 Connection unit for transformers and distribution boards ......................................................... 121
4.2.9 Incoming cable connection unit................................................................................................. 122
4.2.10 Coupling units ........................................................................................................................... 123
4.2.11 Tap-off units .............................................................................................................................. 124
4.2.11.1 Tap-off units with fuse switch disconnector .............................................................................. 125
4.2.11.2 Tap-off units resistant to accidental arcs and with fuse switch disconnector ........................... 126
4.2.11.3 Tap-off units with circuit-breakers ............................................................................................. 127
4.2.12 Additional equipment................................................................................................................. 129
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4.3 Technical data............................................................................................................................130
4.3.1 LD general data .........................................................................................................................130
4.3.2 LDA.4.. trunking units (4-pole, aluminium).................................................................................131
4.3.3 LDA.6.. trunking units (5-pole, aluminium).................................................................................132
4.3.4 LDC.4.. trunking units (4-pole, copper)......................................................................................135
4.3.5 LDC.6.. trunking units (5-pole, copper)......................................................................................136
4.3.6 Feeder units ...............................................................................................................................138
4.3.7 Tap-off units with fuse switch disconnector ...............................................................................140
4.3.8 Tap-off units resistant to accidental arcs and with fuse switch disconnector ............................141
4.3.9 Tap-off units with circuit-breaker................................................................................................142
4.4 Weights ......................................................................................................................................144
4.5 Dimension drawings...................................................................................................................145
4.5.1 Trunking units.............................................................................................................................145
4.5.2 Tap-off units with fuse switch disconnector ...............................................................................146
4.5.3 Arc fault resistant tap-off units with fuse switch disconnector ...................................................147
4.5.4 Tap-off units with circuit-breaker................................................................................................148
4.5.5 Additional equipment .................................................................................................................150
5 Planning with LX.................................................................................................................................... 151
5.1 System description.....................................................................................................................151
5.2 System components ..................................................................................................................152
5.2.1 Preliminary remark for specifications.........................................................................................152
5.2.2 Type code ..................................................................................................................................155
5.2.3 System sizes and structure........................................................................................................156
5.2.4 Conductor configuration.............................................................................................................158
5.2.5 Straight trunking units ................................................................................................................159
5.2.6 Junction units .............................................................................................................................160
5.2.7 Distribution link for Siemens power distribution boards.............................................................162
5.2.8 Connection unit for non-Siemens distribution boards................................................................163
5.2.9 Connection unit for transformers and distribution boards..........................................................164
5.2.10 Incoming cable connection unit..................................................................................................165
5.2.11 Tap-off units and junction boxes................................................................................................166
5.2.11.1 General information ...................................................................................................................166
5.2.11.2 Tap-off units ...............................................................................................................................167
5.2.11.3 Tap-off units ...............................................................................................................................168
5.2.11.4 Tap-off units with fuse switch disconnector up to 630 A............................................................169
5.2.11.5 Tap-off units with circuit breaker up to 630 A and junction boxes with circuit breakers up
to 1250 A....................................................................................................................................170
5.2.12 Additional equipment .................................................................................................................171
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5.3 Technical data........................................................................................................................... 173
5.3.1 LX general data......................................................................................................................... 173
5.3.2 Trunking units LXA..30 (aluminium).......................................................................................... 174
5.3.3 Trunking units LXA..41 (aluminium).......................................................................................... 176
5.3.4 Trunking units LXA..51 (aluminium).......................................................................................... 178
5.3.5 Trunking units LXA..52 (aluminium).......................................................................................... 180
5.3.6 Trunking units LXA..61 (aluminium).......................................................................................... 182
5.3.7 Trunking units LXA..62 (aluminium).......................................................................................... 184
5.3.8 Trunking units LXC..30 (copper) ............................................................................................... 186
5.3.9 Trunking units LXC..41 (copper) ............................................................................................... 188
5.3.10 Trunking units LXC..51 (copper) ............................................................................................... 189
5.3.11 Trunking units LXC..52 (copper) ............................................................................................... 191
5.3.12 Trunking units LXC..53 (copper) ............................................................................................... 193
5.3.13 Trunking units LXC..54 (copper) ............................................................................................... 195
5.3.14 Trunking units LXC..61 (copper) ............................................................................................... 197
5.3.15 Trunking units LXC..62 (copper) ............................................................................................... 200
5.3.16 Fire load for trunking units without tap-off points ...................................................................... 201
5.3.17 Fixing distances ........................................................................................................................ 202
5.3.18 Connection units for non-Siemens distribution boards ............................................................. 203
5.3.19 Tap-off units .............................................................................................................................. 204
5.4 Dimension drawings.................................................................................................................. 206
5.4.1 Trunking units............................................................................................................................ 206
5.4.2 Tap-off units .............................................................................................................................. 207
5.4.2.1 Tap-off units with circuit-breaker............................................................................................... 207
5.4.2.2 Tap-off units with fuse switch disconnector .............................................................................. 209
5.4.3 Additional equipment................................................................................................................. 210
6 Planning with LR.................................................................................................................................... 213
6.1 System description.................................................................................................................... 213
6.2 System components.................................................................................................................. 215
6.2.1 Preliminary remark for specifications ........................................................................................ 215
6.2.2 Type code.................................................................................................................................. 218
6.2.3 System sizes and structure....................................................................................................... 219
6.2.4 Conductor configuration and sizes............................................................................................ 221
6.2.5 Straight trunking units ............................................................................................................... 222
6.2.6 Junction units ............................................................................................................................ 223
6.2.7 Distribution board connection for Siemens power distribution boards...................................... 225
6.2.8 Connection unit for non-Siemens distribution boards ............................................................... 225
6.2.9 Connection unit for transformers and distribution boards ......................................................... 226
6.2.10 Incoming cable connection unit................................................................................................. 228
6.2.11 Tap-offs for power distribution................................................................................................... 229
6.2.12 Additional equipment................................................................................................................. 230
6.3 Technical data........................................................................................................................... 232
6.3.1 LR general data......................................................................................................................... 232
6.3.2 Trunking units LRA..41 (4-pole, aluminium).............................................................................. 233
6.3.3 Trunking units LRA..51 (5-pole, aluminium).............................................................................. 236
6.3.4 Trunking units LRC..41 (4-pole, copper)................................................................................... 239
6.3.5 Trunking units LRC..51 (5-pole, copper)................................................................................... 242
6.4 Dimension drawings.................................................................................................................. 245
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7 Further information about planning ........................................................................................................ 247
7.1 Dimensioning and selection.......................................................................................................247
7.1.1 Determining the voltage drop.....................................................................................................247
7.1.2 Overload protection and short-circuit protection........................................................................251
7.1.3 Loop impedance ........................................................................................................................252
7.1.4 Degrees of protection for busbar trunking systems ...................................................................252
7.1.5 Degrees of protection for electrical equipment in accordance with IEC / EN 60529.................253
7.1.6 Distribution systems...................................................................................................................254
7.2 Planning example ......................................................................................................................256
7.3 Functional endurance ................................................................................................................258
7.3.1 Applicable regulations................................................................................................................258
7.3.2 Versions .....................................................................................................................................259
7.4 Fireproof barrier .........................................................................................................................261
7.4.1 Versions .....................................................................................................................................262
7.4.2 Cut-outs......................................................................................................................................264
7.5 Planning runs .............................................................................................................................265
7.5.1 Space requirements for horizontal installation...........................................................................265
7.5.2 Space requirements for vertical installation ...............................................................................267
7.5.3 Fixing brackets for vertical mounting .........................................................................................268
7.5.4 Fixing brackets for horizontal installation...................................................................................271
7.5.5 Carrier constructions..................................................................................................................273
7.6 Magnetic fields ...........................................................................................................................275
7.7 Sprinkler test ..............................................................................................................................280
7.8 Tools and services .....................................................................................................................282
A Glossary ................................................................................................................................................ 287
Index...................................................................................................................................................... 291
Table of contents
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Planning Manual, 09/2011, A5E01541101-02 9
System overview 1
1.1 Overview of Siemens busbar trunking systems
Figure 1-1 Overview of busbar trunking systems
① CD-K system ⑤ LX system
② BD01 system ⑥ LR system
③ BD2 system ⑦ Communication-enabled busbar trunking systems
④ LD system
System overview
1.1 Overview of Siemens busbar trunking systems
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10 Planning Manual, 09/2011, A5E01541101-02
Siemens supplies the following busbar trunking systems:
Up to 40 A
CD-K system
● Lower planning costs thanks to simple configuration
● Time-saving installation thanks to plug-in quick connector
● Optimum utilisation of the busbar line by fitting tap-off points on both sides
● Uniform current load of the CD-K system conductors by distributing the downstream tap-
off plugs between the individual phases
● IP54 protection as standard (IP55 with additional equipment) ensures versatility of use
● Tap-off plugs make for speed and flexibility when changing load locations
For further information: see also CD-K system (Page 13) , catalogue LV 70
Up to 160 A
BD01 system
● Flexible power supply
● Variable junction units
● Quick and easy to plan
● Time-saving installation
● Reliable mechanical and electrical connection technology
● High stability and low weight
● Positive opening and closing of the tap-off point
● Versatile tap-off units
● Small number of basic modules
● Storage-friendly system
● High degree of protection (IP54) for side-mounted and downwards tap-off points under
extreme ambient conditions, IP55 with additional equipment.
For further information: see also BD01 system (Page 17) , catalogue LV 70
System overview
1.1 Overview of Siemens busbar trunking systems
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Networked busbar trunking systems
● Networked functional expansions for combination with established tap-off units
● Applications:
– Wide-area lighting control
– Remote control and signalling in industrial environments
– Consumption data acquisition for central power tap-offs
● KNX, AS-i, PROFIBUS bus systems
● Quick and easy to plan
● Flexibility in terms of expansion and changes
● Modular system
● Can be retrofitted to existing installations
● Simple contacting of the bus line using insulation displacement method
● Can be used with BD01, BD2, LD, LX systems
For further information: see also Networked busbar trunking systems for industrial and
building applications (Page 20) , catalogue LV 70
Up to 1250 A
BD2 system
● Quick and easy to plan
● Time-saving and efficient installation
● Reliable and safe operation
● Flexible modular system with simple solutions for every application
● Power distribution system can be planned at an early stage without an exact knowledge
of load locations
● Early readiness for operation thanks to quick and easy installation
● High degree of protection IP54 or IP55 for use in harsh industrial environments
● Innovative design: Omission of compensation elements to compensate for expansion
For further information: see also Planning with BD2 (Page 39) , catalogue LV 70
System overview
1.1 Overview of Siemens busbar trunking systems
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Up to 5000 A
LD system
The busbar trunking system for optimum power distribution in industry:
● Reliable and safe operation
● Quick and easy installation
● Space-saving compact design up to 5000 A in one enclosure
● Load feeders up to 1250 A
● IP34 degree of protection with air cooling (IP54 with sealed enclosure)
● Type-tested connection to distribution boards and transformers
For further information: Planning with LD (Page 107)
Up to 6300 A
LX system
The busbar trunking system for power transmission and distribution in buildings
● Reliable and safe operation
● Quick and easy installation
● Sandwich construction up to 5000 A (6300 A on request)
● Load feeders up to 1250 A
● High degree of protection IP54 or IP55 for use in harsh industrial environments
● Type-tested connection to distribution boards and transformers
For further information: Planning with LX (Page 151)
LR system
The busbar trunking system for power transmission under extreme ambient conditions (IP68)
● Reliable and safe operation
● Quick and easy installation
● Cast resin system up to 6150 A
● Safe connection to distribution boards and transformers
● High degree of protection IP68 for outdoor applications
For further information: Planning with LR (Page 213)
SIMARIS design dimensioning software
SIMARIS design makes dimensioning electrical power distribution systems easy, fast and
safe.
To download a free demo version of SIMARIS design and to find out more, please visit:
www.siemens.com/simarisdesign
System overview
1.2 CD-K system
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1.2 CD-K system
System overview
The system has been designed for applications from 25 A to 40 A. It provides an efficient
and flexible means of supplying power to lighting installations and small consumers. Typical
areas of application include warehouses, department stores, storage facilities or clean room
technology.
Rated current 2 x 25 A, 30 A, 40 A, 2 x 40 A
Rated operating voltage 400 VAC
Degree of protection IP54, IP55
Spacing of tap-off points every 1 m on one side
every 0.5 m on both sides
Rated load feeder current Up to 16 A
System overview
1.2 CD-K system
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4
4
5
5
1
3
3
5
2
5
2
1
5
2
4
3
NSV0_00035a
① Trunking unit
② Feeder unit
③ Tap-off plug
④ End cap
⑤ Additional equipment
Figure 1-2 System overview CD-K system
System overview
1.2 CD-K system
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Connection method
The assembly of the trunking units as well as the feeder units is implemented by a
straightforward and unmistakable plug-in connection. The PE path is established
automatically when the housings are connected. An interlock mechanism engages when
connecting the trunking units as well as the feeder units with the end caps. Two fixings
prevent a loosening of the connections. No expansion compensation is required.
Figure 1-3 Connection method CD-K system
Tap-off plugs
Insulated enclosed tap-off plugs enable access to the current supply via tap-off points on the
trunking units. They can be connected and disconnected by hand.
Figure 1-4 Tap-off plugs CD-K system
The tap-off plugs are available in 3 and 5-pole versions, with and without fuse as well as with
connecting cables or plastic cable sleeves.
System overview
1.2 CD-K system
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Fixing and mounting
The trunking unit profile allows attachment of fixing brackets which are also used for
installing lighting fittings. They can be attached to any position of the trunking unit. The
clearance between the suspension points is dependent on the load and may not exceed
max. 3 m.
Figure 1-5 Fixing bracket on trunking unit
System overview
1.3 BD01 system
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1.3 BD01 system
System overview
The BD01 busbar trunking system is designed for applications from 40 A to 160 A.
In the BD01 system, a single size supports 5 rated currents. In other words, all other
components can be used across the power range for all 5 rated currents.
Rated current 40 A, 63 A, 100 A, 125 A, 160 A
Rated operating voltage 400 VAC
Degree of protection IP54, IP55
Spacing of tap-off points every 0.5 m on one side
every 1 m on one side
Rated load feeder current Up to 63 A
Figure 1-6 System overview BD01 system
① Trunking unit ⑤ Ancillary equipment unit
② Feeder unit ⑥ Junction unit
③ Fixing bracket ⑦ End cap
④ Tap-off unit
System overview
1.3 BD01 system
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Connection method
The assembly of the trunking units – even with the end caps and feeder units – is fast and
inherently safe. The trunking units or end caps are simply inserted into the lower housing of
the joint block. Once the upper part of the joint block or end cap is fitted, a secure connection
is established by simply tightening the four screws.
Figure 1-7 Establishing a safe connection
Tap-off units
Tap-off units are available in four different sizes to connect the loads and also with various
components fitted, e.g. such as plugs, fuses, miniature circuit breakers or combinations of
the aforementioned.
Figure 1-8 Tap-off unit BD01 system
Ancillary equipment units offer additional space for decentral function expansions. Thus,
automation and control components can be installed directly on the busbar.
System overview
1.3 BD01 system
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Fixing and mounting
The BD01 busbar is installed edgewise, with the tap-off points on the side using fixing
brackets on the wall, ceiling or non-fixed installation. The mounting is implemented on the
connection points using a universal fixing bracket. The system can also be fitted flat with the
tap-off points pointing downwards. This reduces the required fixing interval by half.
Figure 1-9 Mounting the BD01 system
Fire protection
If the busbar trunking system is routed through a fire wall or ceiling, it must have fire
protection. Compliant with site requirements, Siemens offers fire protection class S90.
Ex-works equipment:
● External fire protection in the form of a kit for on-site mounting
Mineral mortar or fire protection mastic to seal the joints between busbar trunking system
and component must be provided by the customer.
Figure 1-10 Fire protection BD01-S90
The approval documentation for Germany can be ordered separately:
● Approval kit BD01-S90-ZUL-D
(approval certificate, wall signage and declaration of compliance)
System overview
1.4 Networked busbar trunking systems for industrial and building applications
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1.4 Networked busbar trunking systems for industrial and building
applications
The advantages of busbar trunking systems
The busbar trunking system has its advantages in the transport, distribution as well as
switching and protection with electrical energy.
Integration of automation and building systems engineering into the Siemens busbar trunking
systems results in further advantages and also increases the flexibility of the busbar trunking
system.
The combination of standard tap-off units with standard ancillary equipment units guarantees
enhancement in efficiency with the design, installation and operation.
The advantages of the system solution for planning
● Modular system
● Tested standard components
● Freedom in the selection of the bus system
● Use of most popular bus systems
The advantages of the system solution during commissioning
● Quick and simple installation
● Step-by-step commissioning possible
● Flexibility in terms of changes and expansions
The advantages of the system solution in operation
● Transparency of circuit states
● Energy costs recorded centrally
● Increase in system availability thanks to immediate detection of error location and type
● Preventive maintenance as operating hours and switching cycles are recorded
System overview
1.4 Networked busbar trunking systems for industrial and building applications
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System concept networked busbar trunking systems
The tap-off units available as standard for busbar trunking systems can be combined with
standard ancillary equipment units to create a system solution for networked busbar
trunking. For reasons associated with design, an ancillary equipment unit based on a BD01
ancillary equipment unit is used for the BD01 busbar trunking system. A universal ancillary
equipment unit suitable for the application in question is used for BD2, LD and LX systems.
Standard applications are factory-assembled prior to delivery by combining tap-off unit and
ancillary equipment unit as appropriate. The bus line for the transmission of data signals is
laid in a cable channel mounted on the trunking unit.
Figure 1-11 Switching and signalling with the BD2 system
System overview
1.4 Networked busbar trunking systems for industrial and building applications
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Planning principles 2
2.1 Structure of the planning manual
It is not by any means easy to plan a power distribution concept involving the dimensioning
of systems and devices. End user requirements have to be matched with the technical
capabilities of the manufacturer. This planning manual will provide assistance as you plan
and design the following busbar trunking systems from 160 A to 6150 A:
● BD2
● LD
● LX
● LR
Description of the individual systems
Each system has a dedicated chapter describing its technical characteristics and areas of
application. Illustrations of the individual busbar trunking system elements also appear. All
significant information relevant to the planning process is given particular emphasis and
explained in detail.
Further information
You will find advice to help you to develop a ready-to-use planning solution under "Further
information". These include specific dimensioning principles and detailed information about
topics such as fireproof barriers and functional endurance.
Siemens can offer a range of services and engineering tools to assist you in drafting your
specification. For an overview and explanation of functions and features, please see Tools
and services (Page 282).
Planning principles
2.2 Busbar trunking system planning
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24 Planning Manual, 09/2011, A5E01541101-02
2.2 Busbar trunking system planning
2.2.1 Principles of busbar trunking system planning
Decision-making criteria affecting the creation of the power supply concept
When drafting a planning concept for a power supply, in addition to the applicable standards
and regulations, you also need to clarify and address issues of cost and technology.
Accordingly, when dimensioning and selecting electrical equipment such as distribution
boards and transformers, rather than focussing on them individually, you need to aim to
optimise their performance as part of a combined system.
All components have to be dimensioned sufficiently for loads both in rated operation and in
the event of a malfunction. Furthermore, you must take the following important issues into
consideration when drafting a power supply concept:
● Building type, use and design (e.g. high rise, low rise or number of storeys)
● Determination of load centres, identification of possible supply routes and locations for
transformers and main distribution boards
● Calculation of the building's effective installed loads according to specific area loads as
appropriate for the building's use
● Planning authority regulations and requirements
● Requirements set out by the utility company
Requirements to be met by power supply concepts
Planning will never produce just a single option for a solution. Rather, you will need to
assess a number of possible options on the basis of issues relating to technology and cost.
The following requirements are major factors:
● Simple and transparent planning
● Long service life
● High availability
● Low fire load
● Flexible adaptation to changes in the building
Planning principles
2.2 Busbar trunking system planning
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 25
The solution: Siemens busbar trunking systems
In most applications, these requirements can easily be solved by using suitable busbar
trunking systems.
It is for this reason that busbar trunking systems are increasingly being preferred to cable
trunking by engineering consultants charged with designing systems for power transmission
and distribution. Siemens offers busbar trunking systems from 25 to 6300 A:
● The CD-K busbar trunking system from 25 to 40 A for supplying power to lights and small
loads
● The BD01 busbar trunking system from 40 to 160 A for supplying power to shopfloors
with tap-offs up to 63 A
● The BD2 system from 160 to 1250 A for supplying power to medium-sized consumers in
building and industrial applications
● The ventilated LD system for supplying power to consumers with medium power
requirements in industrial applications
● The LX sandwich system for power distribution to consumers with high power
requirements in building applications
● The LR cast resin system for power transmission under extreme ambient conditions
(IP68)
Figure 2-1 Siemens busbar trunking systems
Planning principles
2.2 Busbar trunking system planning
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26 Planning Manual, 09/2011, A5E01541101-02
2.2.2 Different types of busbar trunking systems and their functional scope
Requirements of the power supply
Specific requirements of power supplies and their individual components are typical of
modern production facilities and in building technology today. This is particularly true of
automated facilities.
The ability to retrofit new equipment or modify existing resources without interrupting active
production is not only important for the continuous provision of the electrical power supply. It
is also a vital requirement for production facilities operating on a multiple shift basis.
Increased safety and complex systems require a power distribution system which is able to
respond to all requirements associated with costs and technology.
The CD-K, BD01, BD2, LD, LX and LR busbar trunking systems are type-tested low-voltage
switchgear assemblies (TTA) compliant with DIN EN 60439-1 and -2. The CD-K, BD01, BD2
und LD systems consist of busbars, internal bar fixings, an external enclosure, fixing and
connection accessories. The LX sandwich system and the LR cast resin system consist of
busbars, fixing and connection accessories and an insulating foil, along with an aluminium
enclosure (LX) or an enclosure made from epoxy resin (LR).
Figure 2-2 BD2 trunking unit with tap-off unit
Power transmission
Components of the busbar trunking system transmit power between transformers and low
voltage power distribution systems and from the main distribution board to the service
distribution board. Trunking units without tap-off points are used for the power transmission.
In addition to the standard lengths, customers can select any lengths to meet their particular
building requirements.
Planning principles
2.2 Busbar trunking system planning
SIVACON 8PS - Planning with SIVACON 8PS
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Power distribution
The main application of busbar trunking systems is power distribution. Current can't be taken
from just a single point which is permanently installed such as a cable installation. Current
tap-off units can be moved to any position within the entire system. To tap power at any
given point simply requires positioning a tap-off unit at that location on the busbar.
The result is a flexible distribution system for decentralised power supply to a particular line
or area. Tap-off points can be mounted on one or both sides of straight trunking units.
Depending on the requirements of the particular application, busbar trunking units with tap-
off units for a rated current of 1250 A from a single tap-off point are available for tapping off
power and connecting loads. The tap-off units can be equipped with fuses, fuse-switches,
miniature circuit breakers or circuit breakers as desired.
To be able to change the tap-off units without disconnecting the busbar trunking run, the
following requirements apply:
Requirements
● The PE contact on the tap-off unit leads during installation and lags during removal.
● The parts which are live during installation, removal or connection have complete
protection against direct contact (degree of protection IP2x).
● Installation requires phasing to be correct.
● The tap-off unit must be isolated during installation and removal.
Figure 2-3 Tap-off units for flexible current consumption
Planning principles
2.2 Busbar trunking system planning
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2.2.3 A comparison of busbar trunking systems and cable trunking
Comparison of features
Feature Busbar trunking unit Cable trunking
TTA x —
Mechanical safety High Low
Fire load Low High
Thermal characteristics Ambient temperature compliant with
DIN EN 60439-1 and -2
max. +40°C and +35°C average over 24
hours
Cable loads assume +30 °C in accordance
with
DIN 57298-4, Chap. 5.3.3.1/
DIN VDE 0298-4/2.88
.
Network topology Transparent (line topology with load
feeders connected in series via tap-off
units)
Significant cable cluster at feeding point due
to point-to-point power supply to loads from
central power distribution system
Protective devices for loads In the tap-off unit: facilitating direct and
immediately traceable assignment to load
locally.
Centrally in the distribution board: this means
that assignment to the load cannot be
verified directly. You have to rely on the
cable and load being labelled correctly.
Space requirements Low High, since correspondingly large distribution
boards are needed. Laying criteria
(clustering, laying method, current carrying
capacity, etc.) have to be taken into account.
Retrofitting in the event of
changes to load feeders
Highly flexible thanks to tap-off points in
the trunking units and large number of
different tap-off units
Time-consuming and expensive. Additional
cables need to be laid from the distribution
board to the load.
Planning and configuration Quick and easy using computer-assisted
planning tools
Configuration is time-consuming and
complex (distribution board and cable
dimensioning, cable diagrams, etc.)
Dimensioning (current, voltage
drop, neutralisation conditions)
Complex Very complex
Troubleshooting expenditure Low High
Fireproof barrier Type-tested, factory-built Dependent upon installation quality on site
Functional endurance Functional endurance tested to
DIN 4102-12
Dependent upon installation quality on site
Electromagnetic interference Low Relatively high for standard cables
Installation Few installation accessories and tools,
short installation times
Extensive installation accessories and
numerous tools, long installation times
Weight Weighs up to 1/3 of comparable cable
weight
Up to 3 times the weight of the busbar
trunking system
Halogen-free,
PVC-free 1)
All tap-off units are halogen-free and
PVC-free.
Standard cables are not halogen-free and
PVC-free.
1) Details to be obtained from manufacturer
Planning principles
2.2 Busbar trunking system planning
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 29
Planning made easier
Easy to plan, quick to install and flexible to use: Siemens busbar trunking systems are an
efficient means of supplying power to any building. Power distribution can be planned
precisely on the basis of total connected load and the type and number of loads. Planning
tools such as SIMARIS design provide assistance. The line topology with load feeders
arranged at regular intervals ensures transparency. All applications can be implemented
quickly and compactly with standardised sizes.
In a cable trunking system, new loads have to
be connected via an additional sub-distribution
board; this costs
both time and money.
On busbar trunking systems, tap-off units in
the vicinity of loads ensure local transparency.
Increased safety due to high short-circuit rating and minimum fire load.
Advanced safety – both in respect of short-circuit rating and where fire load is concerned.
BD2A 250 busbar trunking systems, for example, have a fire load of just 1.32 kWh/m,
whereas comparable cable trunking systems (NYY 4 x 95/50 mm2) are rated at 5.19 kWh/m.
Furthermore, the busbars are halogen-free. Siemens busbar trunking systems feature high
short-circuit rating. Furthermore, troubleshooting is made easier thanks to local load short-
circuit protection.
High fire load with cables Low fire load with busbars
Planning principles
2.2 Busbar trunking system planning
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30 Planning Manual, 09/2011, A5E01541101-02
2.2.4 Planning guidelines
Documentation aids
The planning manual "Planning with SIVACON 8PS" contains general principles and
product-specific details for planning and dimensioning power distribution using SIVACON
8PS busbars.
For the complete planning of all main components from medium voltage, through
transformers, to the power outlet for utility and industrial buildings, use of the application
manual of TIP is recommended.
Advance planning
Infeed powers Rated currents and short-circuit currents of
standard transformers (Page 32)
Connected loads Technical data of the systems (Page 33)
Demand factor Planning example (Page 256)
Permissible voltage drop Determining the voltage drop (Page 247)
Required protective measures Degrees of protection for busbar trunking
systems (Page 252)
Distribution systems (network structures) Distribution systems (Page 254)
Selection of the power supply concept:
Centralised with cable and subdistribution boards A comparison of busbar trunking systems and
cable trunking (Page 28)
Decentralised with busbar trunking systems A comparison of busbar trunking systems and
cable trunking (Page 28)
Draft planning
System sizing
Short-circuit rating Technical data of the systems (Page 33)
Rated operating currents Technical data of the systems (Page 33)
Calculation of voltage drop Determining the voltage drop (Page 247)
Overload protection and short-circuit protection Overload protection and short-circuit protection
(Page 251)
Degree of protection depending on room type to
DIN VDE 0100
Degrees of protection for busbar trunking
systems (Page 252)
Planning principles
2.2 Busbar trunking system planning
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Consideration of busbar layout
BD2 LD LX LR
Trunking units Straight trunking units
(Page 45)
Straight trunking units
(Page 114)
Straight trunking units
(Page 159)
Straight trunking units
(Page 222)
Junction units Junction units (Page 46) Junction units
(Page 117)
Junction units
(Page 160)
Junction units
(Page 223)
Tap-off units Tap-off units (Page 54) Tap-off units
(Page 124)
Tap-off units and
junction boxes
(Page 166)
—
Fireproof
barriers
Fireproof barrier (Page 261)
Additional
equipment
Additional equipment
(Page 63)
Additional equipment
(Page 129)
Additional equipment
(Page 171)
Additional equipment
(Page 230)
Installation
General installation instructions Installation instructions for trunking units, incoming
supplies, tap-off units and accessories
Additionally for
BD2: installation manual for the BD2 system
(order no. A5E02126899)
LD: installation manual for the LD system
(order no. A5E02321029)
LX: installation manual for the LX system
(order no. A5E01120816)
LR: installation manual for the LR system
(order no. A5E00949793)
Creation of a specification
Specification texts BD2 Preliminary remark for specifications (Page 40)
Specification texts LD Preliminary technical descriptions for specifications
(Page 108)
Specification texts LX Preliminary remark for specifications (Page 152)
Specification texts LR Preliminary remark for specifications (Page 215)
You will also find the latest specification text modules for SIVACON 8PS on the Internet:
http://www.automation.siemens.com/tip/html_76/support/ausschreibung.htm
Planning principles
2.3 Rated currents and short-circuit currents of standard transformers
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32 Planning Manual, 09/2011, A5E01541101-02
2.3 Rated currents and short-circuit currents of standard transformers
Rated voltage
UrT
400/230 V, 50 Hz 525 V, 50 Hz 690/400 V, 50 Hz
Rated short-
circuit current
value Ukr
4 %
1) 6 %
2) 4 %
1) 6 %
2) 4 %
1) 6 %
2)
Rated power
[kVA]
Rated
current Ir
[A]
Initial symmetrical
short-circuit
current I''k 3)
[A]
Rated
current Ir
[A]
Initial symmetrical
short-circuit
current I''k 3)
[A]
Rated
current Ir
[A]
Initial symmetrical
short-circuit
current I''k 3)
[A]
50 72 1933 1306 55 1473 995 42 1116 754
100 144 3871 2612 110 2950 1990 84 2235 1508
160 230 6209 4192 176 4731 3194 133 3585 2420
200 288 7749 5239 220 5904 3992 167 4474 3025
250 360 9716 6552 275 7402 4992 209 5609 3783
315 455 12247 8259 346 9331 6292 262 7071 4768
400 578 15506 10492 440 11814 7994 335 8953 6058
500 722 19438 12020 550 14810 9158 418 11223 6939
630 910 24503 16193 693 18669 12338 525 14147 9349
800 1154 -- 20992 880 -- 15994 670 -- 12120
1000 1444 -- 26224 1100 -- 19980 836 -- 15140
1250 1805 -- 32791 1375 -- 24984 1046 -- 18932
1600 2310 -- 39818 1760 -- 30338 1330 -- 22989
2000 2887 -- 52511 2200 -- 40008 1674 -- 30317
2500 3608 -- 65547 2749 -- 49941 2090 -- 37844
3150 4550 -- 82656 3470 -- 62976 2640 -- 47722
1) ukr = 4 %, standardised to DIN EN 60909-0 / DIN VDE 0102 Part 0 for SrT = 50 ... 630 kVA
2) ukr = 6 %, standardised to DIN EN 60909-0 / DIN VDE 0102 Part 0 for
SrT = 100 ... 1600 kVA
3) I''k Unaffected transformer initial symmetrical short-circuit current in the case of connection
to a mains supply with unlimited short-circuit power taking into account the voltage factor
and the correction factor for transformer impedance in accordance with
DIN EN 60909/DIN VDE 0102 Part 0 (July 2002)
Approximation formula
Transformer rated current Transformer short-circuit AC current
IN [A] = k x SNT [kVA] I''k = IN/Iuk x 100 [A] 400 V: k = 1.45
690 V: k = 0.84
Planning principles
2.4 System selection criteria
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2.4 System selection criteria
2.4.1 Technical data of the systems
Selection of CD-K, BD01, BD2, LX, LD and LR
CD-K BD01 BD2 LX LD LR
Rated operating
voltage Ue
VAC 400 400 690 690 1000 1000
Standard degree
of protection
IP54, IP55 IP54, IP55 IP52, IP54,
IP55
IP54, IP55 IP34, IP54 1) IP68
Rated
current Ie
A 25 ... 40 40 ... 160 160 ... 1250 800 ... 5000,
6300 2)
1100 ... 5000 400 ... 6150
Rated short-time
withstand current
ICW (1 s)
kA 0.56 ... 0.85 0.58 ...2.5 5.5 ... 34 25 ... 150 55 ... 116 12 ... 100
Conditional short
circuit
rating Icf/Icc for
TU to < 630 A
kA 3) 3) 3) 100/65 120/100 2)
Conditional short
circuit
rating Icc for
TU to < 800 A
kA — — — 85 100 2)
Conductor configurations
L1, N,
PE=enclosure
x — — — — —
L1, L2, N,
PE=enclosure
x — — — — —
L1, L2, L3, N,
PE=enclosure
x x — x — —
L1, L2, L3,
PE=enclosure
— -— — x — —
L1, L2, L3, PEN — — — x x x
L1, L2, L3, N,
PE=busbar
— — x x x x
L1, L2, L3, 2N,
PE=enclosure
— — — x — —
L1, L2, L3, 2N,
PE=busbar
— — — x — —
L1, L2, L3, N,
(PE) 4),
PE=enclosure
— — — x — —
L1, L2, L3, 2N,
(PE) 4),
PE=enclosure
— — — x — —
Planning principles
2.4 System selection criteria
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34 Planning Manual, 09/2011, A5E01541101-02
CD-K BD01 BD2 LX LD LR
Dimensions width x height
for 40 A (Al, Cu) mm x mm 30 x 42 90 x 25 — — — —
for 160 A (Al, Cu) mm x mm — 90 x 25 167 x 68 — — —
for 400 A (Al) mm x mm — — 167 x 68 — — 90 x 90
for 1000 A (Al) mm x mm — — 167 x 126 145 x 162 180 x 180 120 x 120
for 2000 A (Al) mm x mm — — — 145 x 287 240 x 180 120 x 220
for 4000 A (Al) mm x mm — — — 145 x 599 240 x 180 120 x 440
for 1000 A (Cu) mm x mm — — — 145 x 137 180 x 180 90 x 90
for 2000 A (Cu) mm x mm — — — 145 x 207 240 x 180 120 x 192
for 3200 A (Cu) mm x mm — — — 145 x 287 240 x 180 120 x 240
for 5000 A (Cu) mm x mm — — — 145 x 599 240 x 180 120 x 440
for 6150 A (Cu) mm x mm — — — — — 120 x 480
Fire load
Trunking unit incl.
tap-off points
kWh/m 0.1 ... 0.48 0.76 1.32 ... 2 — — —
Trunking unit
without tap-off
point
kWh/m — — — 1.83 ... 16.32 4.16 ... 8.83 13.01 ... 86.96
per tap-off point kWh — — — 2.9 7.8 ... 10.8 2)
Voltage drop
for 40 A (Al, Cu) mV/m/A 2.917 5) 3.192 5) — — — —
for 160 A (Al, Cu) mV/m/A — 0.553 5) 0.519 5) — — —
for 400 A (Al) mV/m/A — — 0.544 5) — — 0.312 6)
for 1000 A (Al) 6) mV/m/A — — 0.15 5) 0.127 6) 0.116 6) 0.156 6)
for 2000 A (Al) 6) mV/m/A — — — 0.059 6) 0.079 6) 0.068 6)
for 4000 A (Al) 6) mV/m/A — — — 0.03 6) 0.043 6) 0.043 6)
for 1000 A (Cu) 6) mV/m/A — — — 0.149 6) — 0.148 6)
for 2000 A (Cu) 6) mV/m/A — — — 0.064 6) 0.089 6) 0.064 6)
for 3200 A (Cu) 6) mV/m/A — — — 0.033 6) 0.048 6) 7) 0.049 6)
for 5000 A (Cu) 6) mV/m/A — — — 0.02 6) 0.03 6) 0.025 6)
Planning principles
2.4 System selection criteria
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Planning Manual, 09/2011, A5E01541101-02 35
CD-K BD01 BD2 LX LD LR
Magnetic fields 8)
for 40 A (Al, Cu) µT 2) 0.4 — — — —
for 160 A (Al, Cu) µT — 0.6 2.8 — — —
for 400 A (Al) µT — — 11.1 — — 2)
for 1000 A (Al) µT — — 14.6 9.5 11.0 2)
for 2000 A (Al) µT — — — 13.2 12.0 2)
for 4000 A (Al) µT — — — 30.62 13.0 2)
for 1000 A (Cu) µT — — — 2) 2)
for 2000 A (Cu) µT — — — 11.66 9.7 2)
for 5000 A (Cu) µT — — — 37.22 14.4 2)
Max. fixing distances
Al systems m — 1.5 ... 3.1 2.5 ... 4.0 2.0 ... 3.0 5.0 ... 6.0 1.5 … 3.0
Cu systems m 3.0 1.5 ... 3.0 1.5 ... 1.0 2.0 ... 3.0 2.0 ... 3.0 1.5 ... 3.0
Tap-offs can be plugged into tap-off points at 3 m intervals
Up to 16 A Units 10 6 11 — — 0 9)
Up to 63 A Units — 6 10 6 3 0 9)
Up to 125 A Units — — 10 6 3 0 9)
160 A to 250 A Units — — 6 6 3 0 9)
315 A to 630 A Units — — 4 10) 4 3 0
9)
800 A to 1250 A Units — — — 0 9) 2 0
9)
1) With IP54, derating of up to 36% needs to be applied
2) On request
3) Usually equivalent to the protective devices installed (< Icw), see the corresponding technical
data
4) (PE) = Clean earth
5) Voltage drop data for 50 Hz 3-phase, cos phi=0.9, symmetrical load,
distributed load decrease and single-side infeed
6) Voltage drop data for 50 Hz 3-phase, cos phi=0.9, symmetrical load,
concentrated load decrease and single-side infeed
7) with LDC6 (Ie=3400 A)
8) Magnetic field values measured with symmetrical load 0.5 m away from the
busbar trunking system
9) Tap-off units can only be connected between two busbar trunkings with a bolt-on joint block (fixed
tap-off unit)
10) Can only be used as of BD2-630
Planning principles
2.4 System selection criteria
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36 Planning Manual, 09/2011, A5E01541101-02
2.4.2 Areas of application for high-current systems
Selection of high-current systems
In principle, SIVACON 8PS offers three high-current systems. We recommend the following
selection dependent upon area of application and ambient conditions:
Location of
use
Areas of application LX LD LR
For power distribution in multi-storey buildings with a
mainly vertical layout
X — —
To avoid neutral conductor overload due to electronic loads
subject to harmonics
X — —
To prevent interference potentials in the busbar enclosure
impairing the operating capability of loads
X — —
Busbar run layout where space is restricted and
requirements high.
— X —
Banks
Insurance companies
Internet providers
Computer centres
Broadcasting stations
Shopping centres
Furniture stores
If structural conditions permit only a vertical layout for
power distribution
X — —
Public
buildings
Shopping centres
Furniture stores
Trade fairs
Airports
Hospitals
Clinics
Office buildings
For power distribution with a mainly horizontal layout and
IP34 degree of protection
— X —
If pluggable tap-off units up to 1250 A are required — X —
When load tap-off points have to have high short-circuit
rating and resistance to arc faults, e.g.
I CC = 100 kA / I cf = 120 kA
— X —
Industrial buildings
Production
environments
If pluggable tap-off units up to 630 A are sufficient X — —
For power transmission under extreme production
conditions
— — X
For power transmission outside closed buildings — — X
Industrial
buildings
Industrial production
under extreme
conditions
If a horizontal busbar run and the IP68 degree of protection
are required
— — X
Planning principles
2.4 System selection criteria
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Planning Manual, 09/2011, A5E01541101-02 37
2.4.3 Selection on the basis of rated transformer data
Figure 2-4 Connection of a transformer to a Siemens power distribution board
The table can be used to select the appropriate busbar trunking system on the basis of the
transformer's rated current. The short-circuit rating of the LD, LX and LR busbar trunking
systems is usually higher than the values for the transformer's sustained and peak short-
circuit currents. However, this only applies if just a single transformer is used for the low-
voltage supply. Higher short-circuit values are possible on ring or meshed networks or if
transformers are connected in parallel in a low-voltage switchgear assembly. Such scenarios
must therefore be given special consideration. Please refer to the technical data for the
busbar trunking systems in question for specific data about short-circuit ratings.
Rated
power
[kVA]
Rated
current
I [A]
Initial
symmetrical
short-circuit
current
I''k (uk=6%)
[kAeff]
Peak short-
circuit
current
Ipk (uk=6%)
[kA]
LD size Rated
current
Ie IP34
[A]
LX size Rated
current
Ie IP54/
55 [A]
LRC size Rated
current
Ie IP68
[A]
630 910 16.19 38.58 LDA1 1100 LXA02/
LXC01
1000 LRA04/
LRC03
1000
800 1155 19.25 49.00 LDA2 1250 LXA04/
LXC02
1250 LRA06/
LRC04
1400/1350
1000 1444 24.06 61.24 LDA3 1600 LXA05/
LXC04
1600 LRA07/
LRC05
1700
1250 1805 30.07 76.57 LDA4 2000 LXA06/
LXC05
2000 LRA08/
LRC07
2000
1600 2310 38.50 98.00 LDA5 2500 LXA07/
LXC06
2500 LRA09/
LRC08
2500
2000 2887 48.11 122.50 LDA6 3000 LXA08/
LXC09
3200 LRA27/
LRC09
3200
2500 3609 60.11 153.10 LDA7 3700 LXA09/
LXC08
4000 LRA28/
LRC27
4000
3150 4546 75.78 192.90 LDC8 5000 LXC09 5000 LRA29/
LRC28
4600/5000
Additional values: see Technical data
Planning principles
2.4 System selection criteria
SIVACON 8PS - Planning with SIVACON 8PS
38 Planning Manual, 09/2011, A5E01541101-02
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Planning with BD2 3
3.1 System description
① Straight trunking units
② Junction units
③ Feeder units
④ Tap-off units
⑤ Additional equipment
Figure 3-1 Overview of BD2 busbar trunking system
Planning with BD2
3.2 System components
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40 Planning Manual, 09/2011, A5E01541101-02
The BD2 busbar trunking system is suitable for universal use. Designed for applications
involving flexible power supplies and power distribution for consumers in industrial and
commercial environments, it can also be used to transmit power from one supply point to
another. In addition, the BD2 busbar trunking system can be used as a rising main busbar in
high rise buildings.
3.2 System components
3.2.1 Preliminary remark for specifications
The BD2 busbar trunking systems can be offered as type-tested low-voltage switchgear and
controlgear assemblies (TTA) to DIN EN 60439-1 and DIN en 60439-2.
The brand offered represents a complete system consisting of system modules, including
elements for connection to the distribution boards such as brackets, straight trunking units,
e.g. Z connectors, T connectors, and flexible junction units.
Trunking units with tap-off openings can be equipped with coded tap-off units. Tap-off units
are protected against incorrect mounting. Depending on the type, the isolation of the tap-off
units during removal is assured by a compulsory sequence of operations or by cautionary
instructions.
If necessary, it is possible to equip the busbar trunking system with an asbestos-free fire
barrier which conforms in the case of BD2C to the fire resistance class S 120 and in the case
of BD2A to S 90 or S 120. The trunking unit's steel enclosure is made of moulded steel
profiles to permit large fixing distances between suspension points. The enclosure is painted
in a light grey colour (RAL 7035).
The external dimensions may not exceed 68 x 167 mm up to 400 A or 126 x 167 mm up to
1250 A. The connection of the individual systemmodules is implemented with state-of-the-art
quick connection terminals with integral compensation for expansion. The system is
protected against phase inversion. A mechanical, electrical and maintenance-free
connection between two busbar trunking system elements can be established quickly and
safely using conventional tools.
The conductors are made of aluminium or copper. The aluminium and copper conductors
must be nickel-plated and tinned along their entire length. The fire load should not exceed
the value stated in the technical specifications. Expansion compensation must be integrated
into eachtrunking unit. Busbar trunking units should be able to be mounted both horizontally
and vertically. Junction units may not be used to connect cables. Flexible junction unit are
permissible as system modules of the busbar trunking system.
The following declarations of conformity must be included with the offer:
● DIN ISO 9001 QA certification
● Certificates verifying
– that the fire barrier has been tested and approved
– that functional endurance has been tested and approved
Planning with BD2
3.2 System components
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Planning Manual, 09/2011, A5E01541101-02 41
The general preliminary remarks are followed by a detailed description of the system as
appropriate for technical requirements:
Technical data for BD2 busbar trunking systems
Rated current _________1)
Degree of protection IP52/IP54/IP55 2)
Mounting position Horizontal/vertical 2)
Rated insulation voltage 690 VAC/800 VDC
Rated operating voltage 690 VAC
Rated frequency 50 – 60 Hz
Rated peak withstand current I pk _________1)
Rated short-time withstand current Icw (1 s) _________1)
Conductor material Al/Cu 2)
No. of conductors (active) 5
Fire load _________1)
Enclosure dimensions
160 to 400 A 68 x 167 mm
630 to 1250 A 126 x 167 mm
1) Enter data for selected system size. See technical data.
2) Please delete as appropriate.
Note
The innovative design and construction of the BD2 busbar trunking system means that
additional compensation units to compensate busbar expansion are not required. Prevailing
length expansion caused by current heat is compensated in the quick connection terminal.
Furthermore, regardless of mounting position and degree of protection, the BD2 busbar
trunking system can always be loaded at 100% of rated current. This only has to be reduced
in the case of pure power transmission in the edgewise mounting position (to 0.9 x Ie).
Planning with BD2
3.2 System components
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42 Planning Manual, 09/2011, A5E01541101-02
3.2.2 Type code
Trunking units
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Figure 3-2 Type codes for BD2A/BD2C trunking units
Planning with BD2
3.2 System components
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 43
Feeder units, junction units
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1) Feeder units only
Selection example for trunking units
A rated current of 1000 A is calculated for a project. Aluminium conductors shall be used. A
5-pole system has to be used. The cross section of the neutral conductor needs to be equal
to the cross section of the phase conductor.
This results in type BD2A-3-1000-
Planning with BD2
3.2 System components
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44 Planning Manual, 09/2011, A5E01541101-02
Trunking unit sizes (cross sections)
Size 1 Size 2
1///3(
160...400 A
1 // / P3(
630...1250 A
Conductor configuration 2
BD2A-2, BD2C-2 trunking units
/ / 3(/1
160...400 A
/ / 3(/1
630...1250 A
Conductor configuration 3
BD2A-3, BD2C-3 trunking units,
junction units, BD2A-..., BD2C-... incoming supplies
Additional equipment is available for both sizes and conductor configurations.
Tap-off units with moulded-plastic enclosures up to 25 A and tap-off units with sheet steel
enclosures can be used as tap-offs for size 1 up to 250 A and size 2 up to 530 A.
Planning with BD2
3.2 System components
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 45
3.2.3 Straight trunking units
Straight trunking units are used to transmit electrical power and to supply loads.
Straight trunking units without tap-off points for horizontal and vertical installation
400 to 1250 A
Figure 3-3 Straight trunking units without tap-off points
Length Type
1.25 m BD2.-.-...-SO-1
2.25 m BD2.-.-...-SO-2
Standard lengths
3.25 m BD2.-.-...-SO-3
0.50...1.24 m BD2.-.-WO-1W*
1.26...2.24 m BD2.-.-WO-2W*
Optional lengths W
2.26...3.24 m BD2.-.-WO-3W*
160...400 A BD2.-400-WO-AL Non-standard lengths (can be cut to
length)
1.25 m
630...1250 A BD2A-1000-WO-AL
BD2C-1250-WO-AL
Straight trunking units with tap-off points for horizontal and vertical installation
160 to 1250 A
Figure 3-4 Straight trunking units with tap-off points
Length Type
BD2.-2 and BD2.-3
Standard lengths with 12 tap-off points 3.25 m BD2.-.-...-SB-3
Standard lengths with 8 tap-off points 2.25 m BD2.-.-...-SB-2
Standard lengths with 4 tap-off points 1.25 m BD2.-.-...-SB-1
Optional lengths with 8 to 12 tap-off points 2.26...3.24 m BD2.-.-...-WB-3W*
Optional lengths with 4 to 8 tap-off points 1.26...2.24 m BD2.-.-...-WB-2W*
S Standard length
O Without tap-off point
W Optional length
* Optional length in m
B Tap-off points on both sides
Planning with BD2
3.2 System components
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46 Planning Manual, 09/2011, A5E01541101-02
3.2.4 Junction units
Junction units are used to adapt the layout to prevailing structural conditions.
Angled trunking units
<
;
<
;
Length Type
160 ... 400 A BD2.-400-L... Standard length X and Y = 0.36 m
630 ... 1250 A BD2A-1000-L...
BD2C-1250-L...
160 ... 400 A BD2.-400-L...-X*/Y* Optional length X or Y = 0.36 ... 1.25 m
630 ... 1250 A BD2A-1000-L...-X*/Y*
BD2C-1250-L...-X*/Y*
* Optional length in m
Z trunking units
<
;
=
<
=
;
Length Type
160 ... 400 A BD2.-400-Z.-X*/Y*/Z* Optional length X or Y = 0.36 ... 0.6 m
Z ≤ 1.25 m 630 ... 1250 A BD2A-1000-Z.-X*/Y*/Z*
BD2C-1250-Z.-X*/Y*/Z*
* Optional length in m
Planning with BD2
3.2 System components
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Planning Manual, 09/2011, A5E01541101-02 47
Angled trunking units with angle configurable between 85° and 175° in 5° increments
ದ
<
;
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<
;
Length Type
160 ... 400 A BD2.-400-L.-G* Standard length X and Y = 0.36 m
630 ... 1250 A BD2A-1000-L.-G*
BD2C-1250-L.-G*
160 ... 400 A BD2.-400-L.-X*/Y*-G* Optional length X or Y = 0.36 ... 1.25 m
630 ... 1250 A BD2A-1000-L.-X*/Y*-G*
BD2C-1250-L.-X*/Y*-G*
X*, Y* Optional length in mm
G* Required number of degrees
T and K units
T unit
K unit
Length per leg K unit type
160 ... 400 A BD2.-400-T. 0.36 m
630 ... 1250 A BD2A-1000-T.
BD2C-1250-T.
Length per leg T unit type
160 ... 400 A BD2.-400-K.. 0.36 m
630 ... 1250 A BD2A-1000-K..
BD2C-1250-K..
Planning with BD2
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48 Planning Manual, 09/2011, A5E01541101-02
Flexible movable trunking units in X/Y/Z direction
Length Type
1.25 m 160 ... 400 A BD2-400-R
1,75 m 630 ... 800 A BD2-800-R
Custom lengths up to 3.25 m
are possible
Planning with BD2
3.2 System components
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3.2.5 Feeder units
Feeder units are used to feed power into the busbar trunking system with single-core or
multi-core cables as well as to feed power directly to low-voltage distribution equipment. The
incoming supply can be set up as an end feed or a centre feed.
3.2.5.1 End feeder units
Common features
All end feeder units have the following common features:
Cables can be fed in from the front end. Units with cable compartments support cable entry
from the side. In the case of multi-core conductor entry, a sectional entry flange with cable
sleeves and cable propping bar is standard; in the case of single-core conductor entry, an
aluminium plate is standard. The cables are connected using lugs and bolts. The bolts are
supplied with the unit. When connecting 5-conductor cables you will need to remove the
bridge between PE and N which will have been fitted prior to delivery. The phasing can be
changed locally.
Incoming cable connection unit: Multi-core entry BD2.-...-EE, single-core design BD2.-...-EE-
EBAL
End feeder units: Incoming cable connection unit
160...250 A BD2.-250-EE(-EBAL)
160...400 A BD2.-400-EE(-EBAL)
630...1000 A BD2.-1000-EE(-EBAL)
630...1250 A BD2C-1250-EE(-EBAL)
Planning with BD2
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50 Planning Manual, 09/2011, A5E01541101-02
Incoming cable connection unit: Multi-core entry with cable compartment BD2.-...-EE-KR,
single-core design with cable compartment BD2.-...-EE-KR-EBAL
Figure 3-5 End feeder units: Cable entry from the side
160...400 A BD2.-400-EE-KR(-EBAL)
630...1000 A BD2.-1000-EE-KR(-EBAL)
630...1250 A BD2C-1250-EE-KR(-EBAL)
Incoming cable connection unit with switch disconnector
Figure 3-6 End feeder unit with switch disconnector
250 A with 3-pole switch disconnector BD2C-250-EESC
315 A with 3-pole switch disconnector BD2C-315-EESC
400 A with 3-pole switch disconnector BD2C-400-EESC
630 A with 3-pole switch disconnector BD2C-630-EESC
800 A with 3-pole switch disconnector BD2C-800-EESC
Cables can be fed in from three sides.
Planning with BD2
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3.2.5.2 Centre feeder units
Common features
All centre feeder units have the following common features:
Cables can be fed in from three sides. The sectional entry flange with integrated strain relief
can be converted to these positions. Aluminium cable entry plates for single-core cables as
an alternative option. The cables are connected using lugs and bolts. When connecting 5-
conductor cables you will need to remove the bridge between PE and N which will have
been fitted prior to delivery.
Figure 3-7 Centre feed
160 ... 400 A BD2.-400-ME
630 ... 1000 A BD2.-1000-ME
160 ... 400 A BD2.-400-ME-MBAL
630 ... 1000 A BD2.-1000-ME-MBAL
Important planning information:
A centre feed might be the best option for the distribution of high powers with small busbar
cross sections. It is mounted in the centre of a trunking run between two trunking units. A
single power supply cable provides power to the left-hand and right-hand trunking runs
simultaneously. This means, for example, that a 1000 A centre feed can feed in 2000 A. In
such cases you need to pay particular attention to the busbar system's overload and short-
circuit protection.
You will need to provide protective measures in the following instances:
● If short-circuit protection is not being provided by the upstream protective device and/or
● If the overload is not set by the type and number of loads
There are two possible protective measures:
1. Use a centre feed unit with one coupling unit on the left of the incoming feeder and
another on the right. The coupling unit is fitted with a protective device (fuse or circuit
breaker) providing short-circuit and overload protection.
2. Use two end feeder units located in the centre of the trunking run. The two supply lines
are fused separately in the distribution system.
Planning with BD2
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3.2.6 Distribution board feeder
The distribution board feeder supports direct connection to a low-voltage distribution board.
The cables or Cu strips are connected using the bolts supplied with the feeders.
Figure 3-8 Distribution board feeder
160...250 A BD2.-250-VE
160...400 A BD2.-400-VE
630 ... 1000 A BD2.-1000-VE
630...1250 A BD2C-1250-VE
Planning with BD2
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3.2.7 Coupling units
Features of coupling units
Coupling units are used if devices or sections of the power supply need to be disconnected
or connected accordingly. To adapt the busbar trunking system to the actual load, the busbar
cross section can be reduced and protected against short circuits and overloads with a
coupling unit.
Coupling units can be fitted with load disconnect switches up to 630 A or circuit-breakers up
to 1250 A as appropriate for the application concerned.
The maximum installation length in the busbar trunking run is 1500 mm. The dimensions of
the coupling unit must not exceed 1250 x 500 x 500 mm (W x H x D).
Coupling units with circuit-breaker
Figure 3-9 Coupling unit with circuit-breaker
BD2.-...-K...-3VL...: On request
Coupling units with fuse switch disconnector
Figure 3-10 Coupling unit with fuse switch disconnector
BD2.-...-K...-ST...: On request
Planning with BD2
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54 Planning Manual, 09/2011, A5E01541101-02
3.2.8 Tap-off units
Tap-off units are used to supply power to loads and outgoing current feeders, e.g. for
incoming power supplies to smaller busbar trunking systems.
3.2.8.1 Tap-off units up to 25 A
Special features
● Tap-off units with fuses, miniature circuit-breakers and sockets
● Insulation-enclosed, light grey in colour RAL 7035
● Transparent cover which can be operated from the outside for the protective devices
● Load switching capacity AC 22 B (400 V) of tap contacts
● Multi-core cables can be fed in from three sides
● Knockouts
● Cable sleeve and integrated strain relief (standard)
● The tap-off unit must be disassembled in order to open the unit and connect the cables.
● Anti-rotation feature prevents incorrect mounting.
● See technical data for conductor cross sections.
Figure 3-11 Tap-off units up to 25 A
Ie
A
Ue
V
Design Type
25 400 Fuse base 3 x D02 BD2-AK1/S18
16 400 Fuse base 3 x D01 BD2-AK1/S14
16 400 3-pole miniature circuit-breaker 16 A, characteristic C BD2-AK1/A163
16 230 Fuse base 2 x D01 and 2 x 3-pole sockets CEE 16 BD2-AK1/2CEE163S14
16 400 Fuse base 3 x D01 and 1 x 5-pole socket CEE 16 BD2-AK1/CEE165S14
16 230 2 x 16 A miniature circuit-breakers, 1-pole, characteristic B and
2 sockets CEE 16, 3-pole
BD2-AK1/2CEE163A161
16 400 3-pole 16 A miniature circuit-breaker, characteristic C and
1 socket CEE 16, 5-pole
BD2-AK1/CEE165A163
16 230 Fuse base 3 x D01 and 3 x 16 A socket outlets with earthing
contact
BD2-AK1/3SD163S14
16 230 3 x 16 A miniature circuit-breakers, 1-pole, characteristic B and
3 x 16 A socket outlets with earthing contact
BD2-AK1/3SD163A161
Planning with BD2
3.2 System components
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3.2.8.2 Tap-off units up to 63 A
Tap-off units with 63 A, with cover integrated load disconnector
Special features
● Tap-off units with fuses, miniature circuit-breakers and sockets
● Sheet-steel enclosure, hot-dip galvanised and cover with powdered paint finish, light grey
in colour, RAL 7035
● The cover has to be opened prior to mounting and removing the unit
● Multi-core cables can be fed in from three sides, knockouts
● Anti-rotation feature prevents incorrect mounting.
● Switch disconnector integrated into cover, switching capacity AC 22 B (400 V) ensures
zero voltage and zero load when the cover is opened
● See technical data for conductor cross sections.
Figure 3-12 Tap-off units up to 63 A, with cover integrated load disconnector
Ie
A
Ue
V
Design Type
63 400 3-pole fuse base D02 up to 63 A BD2-AK2X/S18
25 500 3-pole fuse base S27 up to 25 A BD2-AK2X/S27
63 500 3-pole fuse base S33 up to 63 A BD2-AK2X/S33
32 400 3-pole miniature circuit-breaker 32 A, characteristic C BD2-AK2M2/A323
32 400 3-pole fuse base S33 and
1 x 5-pole socket CEE 32
BD2-AK2X/CEE325S33
63 400 3-pole fuse base S33 and
1 x 5-pole socket CEE 63
BD2-AK2X/CEE635S33
32 400 3-pole 32 A miniature circuit-breaker, characteristic C and
1 x 5-pole socket CEE 32
BD2-AK2M2/CEE325A323
16 400 2 x 3-pole fuse bases D01 and
2 x 5-pole sockets CEE 16
BD2-AK2X/2CEE165S14
16 400 2 x 3-pole 16 A miniature circuit-breakers, characteristic C and
2 x 5-pole sockets CEE 16
BD2-AK2M2/2CEE165A163
16 230 1 x 3-pole miniature circuit-breaker 16 A, characteristic C and
2 x 1-pole miniature circuit-breaker 16 A, characteristic C and
1 x 5-pole socket CEE 16 and
2 x 16 A sockets with earthing contact
BD2-AK2M2/2SD163CEE165A163
Planning with BD2
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56 Planning Manual, 09/2011, A5E01541101-02
Tap-off units up to 63 A, without cover integrated load disconnector
Special features
● Tap-off units with fuses or miniature circuit-breakers
● Sheet-steel enclosure, hot-dip galvanised and cover with powdered paint finish, light grey
in colour, RAL 7035
● Anti-rotation feature prevents incorrect mounting.
● The unit can be mounted and removed with the cover open and closed
● If the cover is open, the installed devices will remain live (test option). IP20
protection/finger safety is assured.
● Multi-core cables can be fed in from three sides via knockouts
● See technical data for conductor cross sections.
Note
You are not permitted to connect or disconnect the tap-off unit under load.
Figure 3-13 Tap-off units up to 63 A, without cover integrated load disconnector
Ie
A
Ue
V
Design Type
63 400 3-pole fuse base D02 up to 63 A BD2-AK02X/S18
25 500 3-pole fuse base S27 up to 25 A BD2-AK02X/S27
63 500 3-pole fuse base S33 up to 63 A BD2-AK02X/S33
25 400 3-pole fuse base SP38 for cylindrical fuse-link 10 x 38 mm BD2-AK02X/F1038-3
25 400 4-pole fuse base SP38 for cylindrical fuse-link 10 x 38 mm BD2-AK02X/F1038-3N
32 400 3-pole fuse base SP51 for cylindrical fuse-link 14 x 51 mm BD2-AK02X/F1451-3
32 400 4-pole fuse base SP51 for cylindrical fuse-link 14 x 51 mm BD2-AK02X/F1451-3N
63 400 3-pole fuse base SP58 for cylindrical fuse-link 22 x 58 mm BD2-AK02X/F2258-3
63 400 4-pole fuse base SP58 for cylindrical fuse-link 22 x 58 mm BD2-AK02X/F2258-3N
32 400 3-pole miniature circuit-breaker 32 A, characteristic C BD2-AK02M2/A323
32 400 3+N-pole miniature circuit-breaker 32 A, characteristic C BD2-AK02M2/A323N
63 400 3-pole miniature circuit-breaker 63 A, characteristic C BD2-AK02M2/A633
63 400 3+N-pole miniature circuit-breaker 63 A, characteristic C BD2-AK02M2/A633N
Planning with BD2
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Planning Manual, 09/2011, A5E01541101-02 57
3.2.8.3 Tap-off units up to 125 A
Tap-off units up to 125 A, with cover integrated load disconnector
Special features
● With fuse base and fuse switch disconnector
● Sheet-steel enclosure, hot-dip galvanised and cover with powdered paint finish, light grey
in colour, RAL 7035
● Anti-rotation feature prevents incorrect mounting.
● Cover interlock for circuit breaker and fuse switch disconnector
● Multi-core cables can be fed in from three sides via knockouts
● See technical data for conductor cross sections.
Note
If you are using fuse bases, you must disconnect the load prior to removing the enclosure
cover.
Figure 3-14 Tap-off units up to 125 A, with cover integrated load disconnector
Ie
A
Ue
V
Design Type
125 690 3-pole LV HRC fuse base size 00 BD2-AK3X/GS00
125 690 3-pole LV HRC fuse switch disconnector size 00 BD2-AK3X/GSTZ00
Tap-off units up to 125 A, without cover integrated load disconnector
Special features
● With miniature circuit breaker, circuit breaker, fuse switch, fuse base and fuse switch
disconnector
● Sheet-steel enclosure, hot-dip galvanised and cover with powdered paint finish, light grey
in colour, RAL 7035
● Anti-rotation feature prevents incorrect mounting.
● The unit can be mounted and removed with the cover open and closed
Planning with BD2
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58 Planning Manual, 09/2011, A5E01541101-02
● If the cover is open, the installed devices will remain live (test option). IP20
protection/finger safety is assured.
● Cover interlock on units with circuit breaker and fuse switch disconnector
● Multi-core cables can be fed in from three sides via knockouts
● See technical data for conductor cross sections.
Note
You are not permitted to connect or disconnect the tap-off units under load.
Please be aware of the reduced switching capacity when using the tap-off units with
circuit breakers at Ue = 690 V.
Figure 3-15 Tap-off unit up to 125 A, without cover integrated load disconnector
Ie
A
Ue
V
Design Type
125 400 with 3-pole miniature circuit breaker 125 A, characteristic C BD2-AK03M2/A1253
125 400 with 3-N-pole miniature circuit breaker 125 A, characteristic C BD2-AK03M2/A1253N
125 400 with 3-pole fuse switch disconnector GSTA00 BD2-AK03X/GSTA00
125 400 with 3-pole fuse base SP58 BD2-AK03X/F2258-3
125 400 with 4-pole fuse base SP58 BD2-AK03X/F2258-3N
125 400 with 3-pole IEC - with fuse switch disconnector BD2-AK03X/FS125IEC-3
125 400 with 3-pole BS - with fuse switch disconnector BD2-AK03X/FS125BS-3
125 400 with 4-pole IEC - with fuse switch disconnector BD2-AK03X/FS125IEC-4
125 400 with 4-pole BS - with fuse switch disconnector BD2-AK03X/FS125BS-4
40 400 with 40 A 3-pole circuit breaker BD2-AK03X/LSD-DC40-N
63 400 with 63 A 3-pole circuit breaker BD2-AK03X/LSD-DC(AE)63-N
80 400 with 80 A 3-pole circuit breaker BD2-AK03X/LSD-DC(AE)80-N
100 400 with 100 A 3-pole circuit breaker BD2-AK03X/LSD-DC100-N
125 400 with 125 A 3-pole circuit breaker BD2-AK03X/LSD-DC125-N
40 400 with 40 A 4-pole circuit breaker BD2-AK03X/LSD-EM40-N
63 400 with 63 A 4-pole circuit breaker BD2-AK03X/LSD-EM63-N
80 400 with 80 A 4-pole circuit breaker BD2-AK03X/LSD-EM80-N
100 400 with 100 A 4-pole circuit breaker BD2-AK03X/LSD-EM100-N
125 400 with 125 A 4-pole circuit breaker BD2-AK03X/LSD-EM125-N
Planning with BD2
3.2 System components
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 59
3.2.8.4 Tap-off units up to 250 A
Special features
● Tap-off units with circuit breaker, fuse switch disconnector and fuse base
● Sheet-steel enclosure, hot-dip galvanised and painted, light grey in colour, RAL 7035
● Multi-core or single-core cables can be fed in from 3 sides
● The cover has to be opened prior to mounting and removing the unit
● Anti-rotation feature prevents incorrect mounting.
● See technical data for conductor cross sections.
Note
Please be aware of the reduced switching capacity when using the tap-off units with
circuit breakers at Ue = 690 V.
You are not permitted to connect or disconnect the tap-off unit under load.
Figure 3-16 Tap-off units up to 250 A
Ie
A
Ue
V
Design Type
160 400 with 160 A 3-pole circuit breaker BD2-AK04/LSD-DC(AE)-160-N
160 400 with 160 A 4-pole circuit breaker BD2-AK04/LSD-EC-160-N
200 400 with 200 A 3-pole circuit breaker BD2-AK04/LSD-DC(AE)-200-N
200 400 with 200 A 4-pole circuit breaker BD2-AK04/LSD-EC-160-N
250 400 with 250 A 3-pole circuit breaker BD2-AK04/LSD-DC(AE)-250-N
250 400 with 250 A 4-pole circuit breaker BD2-AK04/LSD-EC-250-N
225 400 with 250 A 3-pole fuse switch disconnector BD2-AK04/FS250IEC(BS)-3
225 400 with 250 A 4-pole fuse switch disconnector BD2-AK04/FS250IEC(BS)-4
250 690 with 3-pole NH1 fuse base BD2-AK04/SNH1
Planning with BD2
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3.2.8.5 Tap-off units up to 400 A
Tap-off units up to 400 A, for BD2 systems 630 to 1250 A only
Special features
● Tap-off units with circuit breaker, fuse switch disconnector and fuse base
● Sheet-steel enclosure, hot-dip galvanised and painted, light grey in colour, RAL 7035
● Multi-core or single-core cables can be fed in from 3 sides
● The cover has to be opened prior to mounting and removing the unit
● Anti-rotation feature prevents incorrect mounting.
● See technical data for conductor cross sections.
Note
Please be aware of the reduced switching capacity when using the tap-off units with
circuit breakers at Ue = 690 V.
You are not permitted to connect or disconnect the tap-off unit under load.
Figure 3-17 Tap-off units up to 400 A, for BD2 systems 630 to 1250 A only
Ie
A
Ue
V
Design Type
400 400 with 400 A 3-pole circuit breaker BD2-AK05/LSD-DC(AE)-400-N
400 400 with 400 A 4-pole circuit breaker BD2-AK05/LSD-EC-400-N
320 400 with 400 A 3-pole fuse switch disconnector BD2-AK05/FS400IEC(BS)-3
320 400 with 400 A 4-pole fuse switch disconnector BD2-AK05/FS400IEC(BS)-4
400 690 with 3-pole NH2 fuse base BD2-AK05/SNH2
Planning with BD2
3.2 System components
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3.2.8.6 Tap-off units up to 530 A
Tap-off units up to 530 A, for BD2 systems 630 to 1250 A only
Special features
● Tap-off units with circuit breaker and fuse base
● Sheet-steel enclosure, hot-dip galvanised and painted,
● light grey in colour, RAL 7035
● Multi-core or single-core cables can be fed in from 3 sides
● The cover has to be opened prior to mounting and removing the unit
● Anti-rotation feature prevents incorrect mounting.
● See technical data for conductor cross sections.
Note
Please be aware of the reduced switching capacity when using the tap-off units with
circuit breakers at Ue = 690 V.
You are not permitted to connect or disconnect the tap-off unit under load.
Tap-off units up to 530 A, for BD2 systems 630 to 1250 A only
Ie
A
Ue
V
Design Type
530 400 with 630 A 3-pole circuit breaker BD2-AK06/LSD-DC(AE)-630-N
530 400 with 630 A 4-pole circuit breaker BD2-AK06/LSD-EC-630-N
530 690 with 3-pole NH3 fuse base BD2-AK06/SNH3
Planning with BD2
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3.2.9 Ancillary equipment units
Special features
● The enclosure is made of hot-dip galvanised sheet steel and has a painted cover. It is
light grey in colour (RAL 7035).
● Cables can be inserted from 3 sides via knockouts (plastic cable glands with strain relief
must be used, these are not included in the scope of supply).
● Can be combined with tap-off units (BD2-AK02, AK2, AK03, AK3)
● A standard rail is integrated for installation of the device.
● 1 size with 8 WM (1 WM = 18 mm space requirement).
● With or without component mounting unit for external actuation (1 size with with space
units for 8 WM)
● Installation of devices (e.g. circuit-breakers) according to DIN 43871 up to and including
63 A is possible.
Figure 3-18 Ancillary equipment unit
Ue
V
Design Type
400 BD2-GK2X/F
400 BD2-GKM2/F
Planning with BD2
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3.2.10 Additional equipment
3.2.10.1 Additional equipment for increased degree of protection IP54 and IP55
Flange for increased degree of protection
In both the horizontal and vertical mounting positions, the BD2 busbar trunking system has
IP52 degree of protection. This can be increased to IP54 or IP55 by fitting additional flanges.
Detailed information about degree of protection flanges appears in the LV 70 catalogue.
3.2.10.2 Fixing accessories
The following fixing brackets are available for edgewise and flat mounting of busbar trunking
systems in horizontal busbar trunking runs:
Fixing bracket BD2-400-BB Fixing bracket BD2-1250-BB
Fixing accessories
Figure 3-19 Fixing bracket for vertical mounting BD2-BVF
For the fixing of vertical busbar trunking runs
Wall fixing BD2-BWV Wall fixing BD2-BVC
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Figure 3-20 Ceiling fixing BD2-BDV
Compensation of wall or ceiling unevenness between 30 and 82 mm
Figure 3-21 Spacer bracket BD2-BDV
The spacer bracket is combined with the BD2-400(1250)-BB fixing bracket.
Planning with BD2
3.3 Technical data
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3.3 Technical data
3.3.1 BD2 general data
Type BD2-...
Standards and regulations DIN EN 60439-1 and -2
Rated insulation voltage Ui VAC/VDC 690 / 800
Overvoltage category/pollution degree III / 3
Rated operating voltage Ue V AC 690
Frequency Hz 50 ... 60 1)
Rated operational current Ie
• Aluminium bars A 160 ... 1000
• Copper bars A 160 ... 1250
Resist-
ance to
extreme
climates
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Cold in accordance with IEC 60068-2-1
Temperature change in accordance with
IEC 60068-2-14
Salt spray test in accordance with IEC 60068-2-52
40 °C / 93% / RH / 56d
56 x (25 ... 40°C/3 h ; 40°C/9 h; 40-25°C/3-6 h ;
25 °C/6 h) / 95% RH
-45 °C, 16 h
-45 ° to 55 °C; 5 cycles (1 °C/min);
Holding time min. 30 min
Degree of severity 3
Environmental classes 1K5, 3K7L, 2K2, 1C2, 2C2, 3C2, 1B2, 2B2, 3B2,
1S2, 2S2, 3S2
Ambient temperature min./max./24-hour average °C –5 / +40 / +35
Degree of protection compliant with IEC/EN 60529 (type 2)
Trunking units IP52
Trunking units with additional equipment on busbar trunking run IP54, IP55
Feeder units IP55
Tap-off units IP54
Tap-off units with additional equipment IP55
Distribution board feeders IP00
Trunking units
Feeder units, tap-off units
Hot-dip galvanised, painted sheet steel, light-grey
(RAL 7035)
Enclosure of hot-dip galvanised sheet steel, cover
painted, colour light-grey, RAL 7035
Exception: Tap-off units BD2-AK1/... Moulded-plastic enclosure, light grey (RAL 7035)
Busbars
Aluminium/copper Nickel-plated and tinned bars
Mounting position Edgewise, flat, vertical
1) In accordance with EN60439-1, a reduction of 95% must be taken into account for currents > 800 A
at a frequency of 60 Hz.
Planning with BD2
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3.3.2 Tap-off units
Type BD2-AK2..., BD2-AK3...
Rated current
I
e 25 A 63 A 125 A 250 A 400 A
Switching capacity of the contact mechanism AC-22B – – – –
Switching capacity of the built-in switch disconnector acc. to
DIN EN 60947-3 at 400 V
– AC-22B AC-21B – –
Important planning guideline
It is not the case that every tap-off unit has a rated voltage of 690 V and a short-circuit rating
in accordance with the system size.
The tap-off units used must be compatible with the values required by the equipment as far
as their short-circuit rating and rated voltage are concerned.
If the tap-off unit is not compatible with the rated voltage, a unit with appropriate internal
components must be selected. Higher short-circuit currents must be limited by means of
upstream protection devices (e.g. circuit breakers).
3.3.3 Trunking units BD2A (aluminium)
Type BD2A-.-160 BD2A-.-250 BD2A-.-400
Conducting paths
Rated insulation voltage Ui VAC/VDC 690/800 690/800 690/800
Overvoltage category/pollution degree III/3 III/3 III/3
Rated operating voltage Ue V AC 690 690 690
Frequency Hz 50...60 50...60 50...60
Rated current Ie = therm. rated current at max. 40°C and
35°C average over 24 hours
A 160 250 400
Impedance of conducting paths at 50 Hz and 20°C ambient temperature
(with cold busbars)
Resistance R20 mΩ/m 0.484 0.302 0.167
Reactance X20 mΩ/m 0.162 0.131 0.123
Impedance Z20 mΩ/m 0.511 0.330 0.207
Impedance of conducting paths at 50 Hz and 20°C ambient temperature
(with busbars at normal operating temperature)
Resistance R1 mΩ/m 0.588 0.375 0.215
Reactance X
1 mΩ/m 0.160 0.128 0.122
Impedance Z
1 mΩ/m 0.610 0.397 0.247
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Type BD2A-.-160 BD2A-.-250 BD2A-.-400
Impedance of conducting paths under fault conditions
AC current rating RF mΩ/m 0.959 0.673 0.548
Reactance XF mΩ/m 0.681 0.487 0.456
Impedance ZF mΩ/m 1.159 0.831 0.713
R0 mΩ/m 2.050 1.340 1.217
X0 mΩ/m 0.884 0.750 0.640
Phase N
Z0 mΩ/m 2.232 1.535 1.375
R0 mΩ/m 2.018 1.071 1.059
X0 mΩ/m 0.416 0.567 0.518
Zero impedance acc. to
DIN EN 60909-0/VDE 0102
Phase PE
Z0 mΩ/m 2.061 1.212 1.179
Short-circuit rating
Rated peak withstand current Ipk kA 17 32 40
t = 1 s kA 5.5 10 16
Rated short-time withstand current Icw
t = 0.1 s kA 10 16 20
Number of conductors 5 5 5
L1, L2, L3 mm2 63 108 205
N mm2 63 108 205
PE mm2 63 108 205
Conductor cross section
1/2 PE mm2 63 108 205
Conductor material Al Al Al
Max. fixing distances for trunking units under conventional mechanical load
Edgewise m 4 4 4
Edgewise with BD2-BD 1) m 4 4 4
Flat m 3.5 3.5 3.5
Fire load 2) kWh/m 1.32 1.32 1.32
Weight 3) kg/m 5.3 5.8 7.5
1) When using spacer brackets BD2-BD
2) Values for trunking units with tap-off points
3) Weights without joint block (weight of joint block BD2-400-SK: 3.5 kg,
BD2-1250-EK: 6.5 kg)
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Type BD2A-.-630 BD2A-.-800 BD2A-.-1000
Conducting paths
Rated insulation voltage Ui VAC/VDC 690/800 690/800 690/800
Overvoltage category/pollution degree III/3 III/3 III/3
Rated operating voltage Ue V AC 690 690 690
Frequency Hz 50...60 50...60 50...60 1)
Rated current Ie = therm. rated current at max. 40°C and
35°C average over 24 hours
A 630 800 1000
Impedance of conducting paths at 50 Hz and 20°C ambient temperature
(with cold busbars)
Resistance R20 mΩ/m 0.073 0.073 0.051
Reactance X20 mΩ/m 0.058 0.058 0.058
Impedance Z20 mΩ/m 0.093 0.093 0.077
Impedance of conducting paths at 50 Hz and 20°C ambient temperature
(with busbars at normal operating temperature)
Resistance R1 mΩ/m 0.091 0.098 0.066
Reactance X1 mΩ/m 0.057 0.057 0.057
Impedance Z1 mΩ/m 0.107 0.114 0.088
Impedance of conducting paths under fault conditions
AC current rating RF mΩ/m 0.225 0.225 0.157
Reactance XF mΩ/m 0.239 0.239 0.240
Impedance ZF mΩ/m 0.328 0.328 0.287
R0 mΩ/m 0.494 0.494 0.340
X0 mΩ/m 0.312 0.312 0.301
Phase N
Z0 mΩ/m 0.584 0.584 0.454
R0 mΩ/m 0.438 0.438 0.408
X0 mΩ/m 0.280 0.280 0.273
Zero impedance acc. to
DIN EN 60909-0/VDE 0102
Phase PE
Z0 mΩ/m 0.520 0.520 0.491
Short-circuit rating
Rated peak withstand current Ipk kA 64 84 90
t = 1 s kA 26 32 34
Rated short-time withstand current Icw
t = 0.1 s kA 32 40 43
Number of conductors 5 5 5
L1, L2, L3 mm2 446 446 699
N mm2 446 446 699
PE mm2 446 446 699
Conductor cross section
1/2 PE mm2 446 446 446
Conductor material Al Al Al
Planning with BD2
3.3 Technical data
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Type BD2A-.-630 BD2A-.-800 BD2A-.-1000
Max. fixing distances for trunking units under conventional mechanical load
Edgewise m 4 3.5 3
Edgewise with BD2-BD 2) m 2 1.75 1.5
Flat m 3.5 3 2.5
Fire load 3) kWh/m 2 2 2
Weight 4) kg/m 12.3 12.4 15.8
1) In accordance with EN60439-1, a reduction of 95% must be taken into account for currents > 800 A
at a frequency of 60 Hz.
2) When using spacer brackets BD2-BD
3) Values for trunking units with tap-off points
4) Weights without joint block (weight of joint block BD2-400-SK: 3.5 kg, BD2-1250-EK 6.5 kg)
3.3.4 Trunking units BD2A (copper)
Type BD2C-.-160 BD2C-.-250 BD2C-.-400
Conducting paths
Rated insulation voltage Ui VAC/VDC 690/800 690/800 690/800
Overvoltage category/pollution degree III/3 III/3 III/3
Rated operating voltage Ue V AC 690 690 690
Frequency Hz 50...60 50...60 50...60
Rated current Ie = therm. rated current at max. 40°C and
35°C average over 24 hours
A 160 250 400
Impedance of conducting paths at 50 Hz and 20°C ambient temperature
(with cold busbars)
Resistance R20 mΩ/m 0.303 0.295 0.144
Reactance X20 mΩ/m 0.157 0.158 0.119
Impedance Z20 mΩ/m 0.341 0.335 0.187
Impedance of conducting paths at 50 Hz and 20°C ambient temperature
(with busbars at normal operating temperature)
Resistance R1 mΩ/m 0.333 0.383 0.181
Reactance X
1 mΩ/m 0.157 0.159 0.120
Impedance Z
1 mΩ/m 0.368 0.419 0.217
Planning with BD2
3.3 Technical data
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Type BD2C-.-160 BD2C-.-250 BD2C-.-400
Impedance of conducting paths under fault conditions
AC current rating RF mΩ/m 0.666 0.674 0.364
Reactance XF mΩ/m 0.511 0.530 0.461
Impedance ZF mΩ/m 0.839 0.858 0.587
R0 mΩ/m 1.419 1.429 0.718
X0 mΩ/m 0.691 0.703 0.658
Phase N
Z0 mΩ/m 1.579 1.593 0.974
R0 mΩ/m 1.027 1.139 0.672
X0 mΩ/m 0.641 0.530 0.503
Zero impedance acc. to
DIN EN 60909-0/VDE 0102
Phase PE
Z0 mΩ/m 1.211 1.256 0.839
Short-circuit rating
Rated peak withstand current Ipk kA 17 32 40
t = 1 s kA 5.5 10 16
Rated short-time withstand current Icw
t = 0.1 s kA 10 16 20
Number of conductors 5 5 5
L1, L2, L3 mm2 63 63 146
N mm2 63 63 146
PE mm2 63 63 146
Conductor cross section
1/2 PE mm2 63 63 146
Conductor material Cu Cu Cu
Max. fixing distances for trunking units under conventional mechanical load
Edgewise m 4 4 4
Edgewise with BD2-BD 1) m 4 4 4
Flat m 3.5 3.5 3.5
Fire load 2) kWh/m 1.32 1.32 1.32
Weight 3) kg/m 7.3 7.5 9.5
1) When using spacer brackets BD2-BD
2) Values for trunking units with tap-off points
3) Weights without joint block (weight of joint block BD2-400-SK: 3.5 kg, BD2-1250-EK 6.5 kg)
Planning with BD2
3.3 Technical data
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Type BD2C-.-630 BD2C-.-800 BD2C-.-1000 BD2C-.-1250
Conducting paths
Rated insulation voltage Ui VAC/VDC 690/800 690/800 690/800 690/800
Overvoltage category/pollution degree III/3 III/3 III/3 III/3
Rated operating voltage Ue V AC 690 690 690 690
Frequency Hz 50...60 50...60 50...60 1) 50...60 1)
Rated current Ie = therm. rated current at
max. 40°C and 35°C average over 24 hours
A 630 800 1000 1250
Impedance of conducting paths at 50 Hz and 20°C ambient
temperature (with cold busbars)
Resistance R20 mΩ/m 0.069 0.069 0.043 0.032
Reactance X20 mΩ/m 0.054 0.054 0.056 0.054
Impedance Z20 mΩ/m 0.088 0.088 0.071 0.063
Impedance of conducting paths at 50 Hz and 20°C ambient
temperature (with busbars at normal operating temperature)
Resistance R1 mΩ/m 0.087 0.091 0.056 0.041
Reactance X1 mΩ/m 0.054 0.054 0.056 0.054
Impedance Z1 mΩ/m 0.102 0.106 0.079 0.068
Impedance of conducting paths under fault conditions
AC current rating RF mΩ/m 0.173 0.172 0.118 0.094
Reactance XF mΩ/m 0.226 0.229 0.234 0.229
Impedance ZF mΩ/m 0.285 0.286 0.262 0.248
R0 mΩ/m 0.357 0.373 0.234 0.186
X0 mΩ/m 0.296 0.266 0.286 0.275
Phase N
Z0 mΩ/m 0.464 0.458 0.370 0.332
R0 mΩ/m 0.342 0.334 0.230 0.174
X0 mΩ/m 0.283 0.284 0.278 0.265
Zero impedance acc.
to DIN EN 60909-0/
VDE 0102
Phase PE
Z0 mΩ/m 0.444 0.438 0.361 0.317
Planning with BD2
3.3 Technical data
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Type BD2C-.-630 BD2C-.-800 BD2C-.-1000 BD2C-.-1250
Short-circuit rating
Rated peak withstand
current Ipk
kA 64 84 90 90
t = 1 s kA 26 32 34 34
Rated short-time withstand
current Icw t = 0.1 s kA 32 40 43 43
Number of conductors 5 5 5 5
L1, L2, L3 mm2 280 280 468 699
N mm2 280 280 468 699
PE mm2 280 280 468 699
Conductor cross section
1/2 PE mm2 280 280 280 468
Conductor material Cu Cu Cu Cu
Max. fixing distances for trunking units under conventional
mechanical load
Edgewise m 4 3.5 3 2
Edgewise with BD2-BD 2) m 2 1.75 1.5 1
Flat m 3.5 3 2.5 1.5
Fire load 3) kWh/m 2 2 2 2
Weight 4) kg/m 15.6 18.9 25.1 37.6
1) In accordance with EN60439-1, a reduction of 95% must be taken into account for currents > 800 A
at a frequency of 60 Hz.
2) When using spacer brackets BD2-BD
3) Values for trunking units with tap-off points
4) Weights without joint block (weight of joint block BD2-400-SK: 3.5 kg, BD2-1250-EK 6.5 kg)
Planning with BD2
3.4 Conductor cross sections
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3.4 Conductor cross sections
3.4.1 Feeder units
Connection cross-sections 2)
L1, L2, L3 N PE Design Type
min.
mm²
max.
mm²
min.
mm²
max.
mm²
min.
mm²
max.
mm²
Size of
fixing
screws,
bolts
L1, L2,
L3, N, PE
BD2.-250-EE 1 × 6 1 × 150,
2 × 70
1 × 6 1 × 150,
2 × 70
1 × 6 1 × 150,
2 × 70
M10
BD2.-400-EE 1 × 10 1) 1 × 240,
2 × 120
1 × 10 1) 1 × 240,
2 × 120
1 × 10 1) 1 × 240,
2 × 120
M12
BD2.-1000-EE 1 × 10 1) 2 × 240,
3 × 185
1 × 10 1) 2 × 240,
3 × 185
1 × 10 1) 2 × 240,
3 × 185
M12
Feeder units
with bolt
connection
BD2.-1250-EE 1 × 10 1) 3 × 300,
4 × 240
1 × 10 1) 3 × 300,
4 × 240
1 × 10 1) 3 × 300,
4 × 240
M12
BD2C-250(315)-
EESC
1 x 10 1) 1 x 240 1 x 10 1) 1 x 240 Armouring M10
BD2C-400-EESC 1 x 10 1) 1 x 240,
2 x 120
1 x 10 1) 1 x 240,
2 x 120
Armouring M12
Feeder units
with switch
disconnector
BD2C-630(800)-
EESC
1 x 10 1) 2 x 240 1 x 10 1) 2 x 240 Armouring M12
BD2.-400-ME 1 × 10 1) 2 × 240,
3 × 185
1 × 10 1) 2 × 240,
3 × 185
1 × 10 1) 2 × 240,
3 × 185
M12 Centre feeder
units with bolt
connection BD2.-1000-ME 1 × 10 1) (1–5) × 300 1 × 10 1) (1–5) × 300 1 × 10 1) (1-5) × 300 M12
1) Minimum permissible cable cross section for cable lugs
2) Connection cross-sections refer to copper cables, cross-sections and diameters for
aluminium cables on request
Cable and wire entries
Type BD2.-250-EE BD2.-400-EE BD2.-1000-EE,
BD2.-400-ME
BD2.-1000-ME BD2.-1250-EE
1 x KT3 1) 2 x KT4 1) 3 x KT4 1) 6 x KT4 1) 4 x KT4 1) Cable grommets for
cable diameters mm 14...54 14...68 14...68 14...68 14...68
1) With strain relief
Planning with BD2
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Cable entry plate single-core system (undrilled cable entry plates)
Type BD2.-250-EE BD2.-400-EE BD2.-1000-EE BD2.-1250-EE
Cable entry plate BD2-250-EBAL BD2-400-EBAL BD2-1000-EBAL BD2-1250-EBAL
No. of cable entries (maximum) 10 x M32,
5 x M40
10 x M40 15 x M40,
6 x M50 and 4 x M40
20 x M50
Plastic cable glands with strain relief must be used (these are not included in the scope of
supply).
Cable entry plate single-core system for centre feeder units (undrilled cable entry plates)
Type BD2.-400-ME... BD2.-1000-ME
Cable entry plate BD2-400-MBAL BD2-1000-MBAL
No. of cable entries (maximum) 12 x M40 and 3 x M32,
6 x M50 and 4 x M40
31 x M40,
16 x M50 and 4 x M40
Plastic cable glands with strain relief must be used (these are not included in the scope of
supply).
Cable entry plate feeder unit with switch disconnector (undrilled cable entry plates)
Type BD2C-250(315, 400)-EESC BD2C-630(800)-EESC
No. of cable entries (maximum) 1 x 65.7 mm 2 x 65.7 mm
Planning with BD2
3.4 Conductor cross sections
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3.4.2 Tap-off units
Connection cross-sections 1)
L1, L2, L3 N PE Size of
fixing
screws,
bolts L1,
L2, L3
Name Type
min
mm²
max
mm²
min
mm²
max
mm²
min
mm²
max
mm²
Up to 25 A BD2-AK1/S14 0.5 (f, m) 4 (e) 1 (e, f, m) 6 (e, m) 1 (e, f, m) 6 (e, m) –
BD2-AK1/S18 0.5 (f, m) 16 (e, f, m) 1 (e, f, m) 6 (e, m) 1 (e, f, m) 6 (e, m) –
BD2-AK1/A... 0.75 (e, m) 16 (e) 1 (e, f, m) 6 (e, m) 1 (e, f, m) 6 (e, m) –
BD2-AK1/A...N 0.75 (e, m) 16 (e) 0.75 (e, m) 16 (e) 1 (e, f, m) 6 (e, m) –
BD2-AK1/F... 0.75 (e, m) 16 (e) 1 (e, m) 6 (e) 1 (e, f, m) 6 (e, m) –
BD2-AK1/F...N 0.75 (e, m) 16 (e) 0.75 (e, m) 16 (e) 1 (e, f, m) 6 (e, m) –
Up to 63 A BD2-AK.2X/S18 0.5 (f, m) 25 (f, m) 1 (e, f, m) 6 (e, m) 1 (e, f, m) 6 (e, m) –
BD2-AK.2X/S27 0.75 (f, m) 10 (e, f, m) 1 (e, f, m) 6 (e, m) 1 (e, f, m) 6 (e, m) –
BD2-AK.2X/S33 1.5 (f, m) 25 (f, m) 2.5 (e, f, m) 16 (e, m) 2.5 (e, f, m) 16 (e, m) –
BD2-AK.2M2/A... 0.75 (e, m) 25 (m) 2.5 (e, f, m) 25 (m) 2.5 (e, f, m) 25 (m) –
BD2-AK.2M2/A...N 0.75 (e, m) 25 (m) 0.75 (e, f, m) 25 (m) 2.5 (e, f, m) 25 (m) –
BD2-AK.2X/F... 0.75 (e, m) 25 (m) 2.5 (e, f, m) 25 (m) 2.5 (e, f, m) 25 (m) –
BD2-AK.2X/
GB32...
0.75 (e, m) 16 (e, m) 0.75 (e, m) 16 (e, m) Armouring –
BD2-
AK.2X/GB63...
0.75 (e, m) 50 (m) 0.75 (e, m) 50 (m) Armouring –
Up to 125 A BD2-AK.3X/
LSD40-LSD125
2.5 (e, m) 70 (m) 2.5 (e, m) 70 (m) 2.5 (e, m) 70 (m) –
BD2-AK3X/GS00 16 70 16 70 10 70 M8
BD2-AK.3X/
GSTZ(A)00
16 70 16 70 10 70 M8
BD2-AK.3X/
GB100...
6 (e, m) 70 (m) 6 (e, m) 70 (m) Armouring –
BD2-AK03X/
T(S)PNR100...
6 (e, m) 70 (m) 6 (e, m) 70 (m) Armouring –
Up to 250 A BD2-AK04/SNH1 6 150 6 150 6 150 M10
BD2-AK04/FS... 6 150 6 150 6 150 M10
BD2-AK04/LS... 6 120 (m) 6 (e, m) 150 6 150 M8
Planning with BD2
3.4 Conductor cross sections
SIVACON 8PS - Planning with SIVACON 8PS
76 Planning Manual, 09/2011, A5E01541101-02
L1, L2, L3 N PE Size of
fixing
screws,
bolts L1,
L2, L3
Name Type
min
mm²
max
mm²
min
mm²
max
mm²
min
mm²
max
mm²
Up to 400 A BD2-AK05/SNH2 10 2 × 120 10 2 × 120 10 2 × 120 M10
BD2-AK05/FS... 10 2 × 120 10 2 × 120 10 2 × 120 M10
BD2-AK05/LS... 10 2 × 120 10 2 × 120 10 2 × 120 M8
Up to 630 A BD2-AK06/SNH3 10 2 × 240 10 2 × 240 10 2 × 240 M12
BD2-AK06/LS... 10 2 × 240 10 2 × 240 10 2 × 240 M10
e = solid, m = stranded, f = finely-stranded with end sleeve
1) Connection cross-sections refer to copper cables, cross-sections and diameters
for aluminium cables on request
Cable and wire entries
Type BD2-AK1/... BD2-AK.2... BD2-AK.3... BD2-AK04 BD2-AK05 BD2-AK06
Cable grommets M25 2) — — KT3
3) 2 × KT4 3) 2 × KT4 3)
Cable glands 1) — M25, M32,
M40
M25, M40,
M63
— — —
for cable
diameters
mm 11 ... 6 11 ... 27 11 ... 42 14 … 54 14 … 68 14 … 68
Min./max. insertable cable cross-sections for NYY and NYCWY with multi-core cable for
NYY... mm2 5 × 1,5 …
5 × 4
5 × 1,5 …
5 × 16
5 × 1,5 …
5 × 25
— — —
NYCWY... 4) mm2 4 × 1,5 …
4 × 2.5
4 × 1,5 …
4 × 16
4 × 1,5 …
4 × 70
5 × 1,5 …
4 × 150
2 × 5 × 1,5 …
2 × 4 × 150
2 × 5 × 10 …
2 × 4 × 240
Cable entry plate for single-core cable (add-on plates, undrilled)
No. of cable entries, max. — — — 10 × M40 10 × M32,
5 × M40
10 × M40
1) For cable glands: Plastic cable glands with strain relief must be used (these are not included in the
scope of supply).
2) Strain relief in the BD2-AK1/...
3) With strain relief
4) Fifth conductor: concentric conductor.
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 77
3.5 Dimension drawings
3.5.1 Straight trunking units
BD2.-.-...
&HQWUHMRLQWEORFN
F
Q
Length
m
No. of tap-off units on both sides
n x 500
0.5 ... 1.25 -
1.26 ... 2.25 4 ... 8
2.26 ... 3.25 8 ... 12
In the case of optional lengths, tap-off units cannot be connected at all tap-
off points.
1///3(
1///3(
$
$
Planning with BD2
3.5 Dimension drawings
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78 Planning Manual, 09/2011, A5E01541101-02
3.5.2 Junction units
L units
[ ದ
* ದ
\ ದ
F
Figure 3-22 BD2.-....-LR-...(-G*), BD2.-...-LL-...(-G*)
F
[ ದ
\ ದ
* ದ
Figure 3-23 BD2.-...-LV...(-G*), BD2.-...-LH-...(-G*)
Rated current
A
c
mm
160 ... 400 68
630 ... 1250 126
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 79
Z units
[ ದ
] ದ
\ ದ
F
Figure 3-24 BD2.-...-ZR-..., BD2.-...-ZL-...
\ ದ
F
[ ದ
]
Figure 3-25 BD2.-...-ZV, BD2.-...-ZH-...
Rated current
A
z
mm
160 ... 400 140 ... 1250
630 ... 1250 260 ... 1250
Planning with BD2
3.5 Dimension drawings
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80 Planning Manual, 09/2011, A5E01541101-02
T units
F
F
Figure 3-26 BD2.-...-TR, BD2.-...-TL
F
F
Figure 3-27 BD2.-...-TV, BD2.-...-TH
Rated current
A
c
mm
c1
mm
160 ... 400 68 64
630 ... 1250 126 122
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 81
K units
F
F
Figure 3-28 K units BD2.-...-KRL
F
F
169B
Figure 3-29 K units BD2.-...-KVH
Rated current
A
c
mm
c1
mm
160 ... 400 68 64
630 ... 1250 126 122
Planning with BD2
3.5 Dimension drawings
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82 Planning Manual, 09/2011, A5E01541101-02
Movable junction units
D
F
E
F
F
F
D D D
Figure 3-30 BD2-400-R, BD2-800-R
Type a1 a2 a3 a4 b c c1 c2 c3
BD2-400-R 1250 512 187 187 79 68 64 101 50
BD2-800-R 1750 786 350 250 146.5 126 122 195 145
U shape
F
5
Type c6 Rmin
BD2-400-R 220 110
BD2-800-R 340 110
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 83
Z shape
F
D
D
Type a5 a6 c6 Rmin
BD2-400-R 175 1000 355 110
BD2-800-R 530 1590 400 110
3.5.3 Distribution board feeder
F
Figure 3-31 BD2.-250-VE
F
F
F
Figure 3-32 BD2.-400-VE, BD2.-1000-VE
Planning with BD2
3.5 Dimension drawings
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84 Planning Manual, 09/2011, A5E01541101-02
Figure 3-33 BD2.-1250-VE
'HYLFHFXWRXW
D
E
Type a b c c1 c2
BD2.-250-VE
BD2.-400-VE
34 68 121 64 84
BD2.-1000-VE
BD2.-1250-VE
92 126 155.5 122 142
3.5.4 End feeder units
Figure 3-34 BD2.-250-EE
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 85
Figure 3-35 BD2.-400-EE
Figure 3-36 BD2.-1000-EE
Planning with BD2
3.5 Dimension drawings
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86 Planning Manual, 09/2011, A5E01541101-02
Figure 3-37 BD2.-1250-EE
End feeder units with switch disconnector
Figure 3-38 BD2C-250-EESC, BD2C-315-EESC
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 87
Figure 3-39 BD2-400-EESC
Figure 3-40 BD2-630-EESC, BD2-800-EESC
Planning with BD2
3.5 Dimension drawings
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88 Planning Manual, 09/2011, A5E01541101-02
3.5.5 Cable compartments
Figure 3-41 BD2-400-KR (BD2.-400-EE)
Figure 3-42 BD2-1000-KR (BD2.-1000-EE)
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 89
Figure 3-43 BD2-1250-KR (BD2.-1250-EE)
3.5.6 Centre feed
Figure 3-44 BD2.-400-ME
Planning with BD2
3.5 Dimension drawings
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90 Planning Manual, 09/2011, A5E01541101-02
Figure 3-45 BD2.-1000-ME
3.5.7 Tap-off units
3.5.7.1 Tap-off units up to 25 A
Size 1 up to 25 A
Figure 3-46 BD2-AK1/...
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 91
F
F
Figure 3-47 BD2-AK1/3SD163..., BD2-AK1/3DK..., BD2-AK1/2T23..., BD2-AK1/3T23..., BD2-
AK1/T25...
F
F
Figure 3-48 BD2-AK1/2CEE163
F
F
Figure 3-49 BD2-AK1/CEE165...
Type c1 c2
BD2-AK1/3SD163...,
BD2-AK1/3DK...,
BD2-AK1/2T23...,
BD2-AK1/3T23,
BD2-AK1/T25...
71 13
BD2-AK1/2CEE163 88 44
BD2-AK1/CEE165 106 52
Planning with BD2
3.5 Dimension drawings
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92 Planning Manual, 09/2011, A5E01541101-02
3.5.7.2 Tap-off units up to 63 A
Size 02 up to 63 A
0000
Figure 3-50 BD2-AK02X/F..., BD2-AK02X/GB..., BD2-AK02X/S...
Figure 3-51 BD2-AK02M2/A..., BD2-AK02M2/F
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 93
Size 2 up to 63 A
000
0 0
Figure 3-52 BD2-AK2X/F..., BD2-AK2X/GB..., BD2-AK2X/S...
Figure 3-53 BD2-AK2M2/A..., BD2-AK2M2/F
Designs with CEE, BS and CH sockets as well as sockets with earthing contacts
Figure 3-54 BD2-AK2X/CEE635S33
Planning with BD2
3.5 Dimension drawings
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94 Planning Manual, 09/2011, A5E01541101-02
E
BD2-AK2X/CEE325S33
BD2-AK2M2/CEE325A323
BD2-AK2X/2CEE165S14
BD2-AK2M2/2CEE165A163
BD2-AK2X/2CEE165S27 (/FORMP)
BD2-AK2M2/T25...
BD2-AK2M2/T23(T25)...CEE165...
BD2-AK2M2/T23(T25)...CEE325...
E E
Figure 3-55 BD2-AK2X/3BS133...
E E
Figure 3-56 BD2-AK2M2/2SD163CEE165A163
Type b1 b2
BD2-AK2X/CEE325S33
BD2-AK2M2/CEE325A323
BD2-AK2X/2CEE165S14
BD2-AK2M2/T23(T25)...CEE325
98 -
BD2-AK2X/2CEE165S27 (/FORMP)
BD2-AK2M2/2CEE165A163
BD2-AK2M2/T23(T25)...CEE165
86 -
BD2-AK2M2/T25... 54 -
BD2-AK2X/3BS133... - 54
BD2-AK2M2/2SD163CEE165A163 86 54
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 95
3.5.7.3 Tap-off units up to 125 A
Size 03 up to 125 A
0000
Figure 3-57 BD2-AK03X/F..., BD2-AK03X/GB..., BD2-AK03X/TPNR..., BD2-AK03X/SPNR...
Figure 3-58 BD2-AK03M2/A...
Planning with BD2
3.5 Dimension drawings
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96 Planning Manual, 09/2011, A5E01541101-02
Designs with fuse switch disconnector and circuit breaker
BD2-AK03X/GSTA00 BD2-AK03X/FS...
Figure 3-59 BD2-AK03X/LSD
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 97
Size 3 up to 125 A
000
0 0
Figure 3-60 BD2-AK3X/GS00, BD2-AK3X/GB...
Design with fuse switch disconnector
5
Figure 3-61 BD2-AK3X/GSTZ00
Planning with BD2
3.5 Dimension drawings
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98 Planning Manual, 09/2011, A5E01541101-02
3.5.7.4 Tap-off units up to 250 A
Size 04 up to 250 A
FD
Figure 3-62 BD2-AK04/LSD...
Figure 3-63 BD2-AK04/SNH1, BD2-AK04/GB250J-...
Figure 3-64 BD2-AK04/FS...
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 99
3.5.7.5 Tap-off units up to 530 A
Sizes 05, 06 up to 530 A
FD
Figure 3-65 BD2-AK05/LSD..., BD2-AK06/LSD...
Figure 3-66 BD2-AK05/SNH2, BD2-AK06/SNH3
Figure 3-67 BD2-AK05/FS...
Planning with BD2
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100 Planning Manual, 09/2011, A5E01541101-02
3.5.8 Ancillary equipment units
K
Type h
BD2-GKM2/F 101
BD2-GKX/F 151
Figure 3-68 BD2-GKM2/F
Figure 3-69 BD2-GKX/F
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 101
3.5.9 Additional equipment
Bushing protector
BD2-400-D BD2-1250-D BD2-...-D
Fire protection
+BD2-S90 (S120)-...
BD2.-160 (-250, -400)-...
BD2.-630 (-800, -1000, -1250)-...
Joint block
D
Figure 3-70 BD2-400-SK, BD2-1250-EK
Type a
mm
BD2-400-SK 68
BD2-1250-EK 126
Planning with BD2
3.5 Dimension drawings
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102 Planning Manual, 09/2011, A5E01541101-02
F
① Length of trunking unit
② End of end cap = centre of joint block
Figure 3-71 BD2-400-FE, BD2-1250-FE
Type c
mm
BD2-400-FE 68
BD2-1250-FE 126
Mounting
Fixing bracket, flat and edgewise
F
F
Figure 3-72 BD2-400-BB, BD2-1250-BB
Type c
mm
c1
mm
BD2-400-BB 86.5 48
BD2-1250-BB 144.5 77
Planning with BD2
3.5 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 103
Spacer
Figure 3-73 BD2-DSB
Spacer bracket
F
Figure 3-74 BD2-BD
Type c
mm
BD2-400-BD 30 ... 82
BD2-1250-BD 50 ... 82
Note
Mounting on a concrete wall
In the case of mounting directly on a concrete wall, use only steel and straddling dowel pins
compliant with building regulations, e.g.:
Order no. 15J1-A08/40 by RICO
SLM8N item no. 50521 by Fischerwerke
Planning with BD2
3.5 Dimension drawings
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104 Planning Manual, 09/2011, A5E01541101-02
Vertical fixing elements
ದ
BD2-BWV BD2-BDV
Planning with BD2
3.5 Dimension drawings
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Planning Manual, 09/2011, A5E01541101-02 105
Vertical fixing bracket
BD2-BVF
PD[
PLQ
% %
Figure 3-75 BD2-BVC
Planning with BD2
3.5 Dimension drawings
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106 Planning Manual, 09/2011, A5E01541101-02
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Planning Manual, 09/2011, A5E01541101-02 107
Planning with LD 4
4.1 System description
① Additional equipment
② Tap-off units
③ Straight trunking units
④ Junction units
⑤ Feeder units
⑥ Distribution board connection units
Figure 4-1 Overview of LD busbar trunking system
Planning with LD
4.2 System components
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108 Planning Manual, 09/2011, A5E01541101-02
The LD busbar trunking system is used for both power transmission and distribution. The
system offers a high short-circuit rating and is particularly suited for the connection of
transformers to low-voltage main distribution boards and sub-distribution boards.
In applications where high powers are required, conventional systems frequently require the
use of parallel cables. The LD system offers optimal power distribution for both horizontal
and vertical busbar runs. Coded plug-in tap-off units up to 1250 A that meet extremely high
safety standards are available for this purpose.
4.2 System components
4.2.1 Preliminary technical descriptions for specifications
The busbar trunking systems should be offered as type-tested low-voltage switchgear and
controlgear assemblies TTA to IEC/EN 60439-1 and -2, DIN VDE 0660 Part 500 and Part
502 (German standard), as a steel-encapsulated ready-to-connect system.
The distribution systems must be suitable forpower transmission, e.g. between transformer
and low-voltage main distribution boards, as well as for power distribution providing a supply
of power to an entire area.
The brand offered must be a complete system consisting of system modules, including
transformers and elements for connection to the distribution boards, as well as such as
brackets, straight trunking units and junction units. All components should be available both
in straight and offset versions.
Trunking units with tap-off openings should be able to be equipped with coded tap-off units.
Tap-off units are protected against incorrect mounting. Depending on the type, the isolation
of the tap-off units during removal is assured by a compulsory sequence of operations or by
cautionary instructions.
If required, the busbar trunking system should be capable of being equipped with asbestos-
free fire barriers which comply with fire resistance class S 120, and which have been
certified by the local or government authority responsible for building standards. The trunking
unit's steel enclosure is made of moulded steel profiles to permit large fixing distances
between suspension points. Theenclosure is galvanised and painted in a light grey colour
(RAL 7035).
The external dimensions may not exceed 180 x 180 (240) mm.
The individual system modules are connected by hanging a hook from a bolt and tightening
a state-of-the-art maintenance-free single-bolt clamp. The conductor between two system
units should not be connected with screws.
The conductor material is made of aluminium or of copper if the rated current requires. The
aluminium conductor must be nickel-plated and tinned, and the copper conductor must be
tinned and provided with an additional insulating layer of epoxy-resin.
The fire load must not exceed the value specified in the technical data. Junction units with
flexible connections or cable connections are not permitted.
Planning with LD
4.2 System components
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 109
The following certificates or declarations of conformity must accompany the offer:
● DIN ISO 9001 QA certification
● Proof of sprinkler testing
● Proof of prevention of propagation of an arcing fault
● Proof that the system is maintenance-free
Following the general information, a precisedescription of the system based on the technical
requirements should be provided as follows:
Technical data for LD busbar trunking system
Rated current _________1)
Degree of protection IP34/IP54
Mounting position Horizontal/vertical 2)
Rated insulation voltage 1000 V AC
Rated operating voltage 1000 VAC
Rated frequency 50 / 60 Hz 3)
Rated peak withstand current Ipk _________1)
Rated short-time withstand current Icw (1 s) _________1)
Conductor material Al/Cu 2)
No. of conductors L1 – L3 and PEN (4 bars/4-pole)
L1 – L3 and ½ PEN (7 bars/4-pole)
L1 – L3 and PEN (8 bars/4-pole)
L1 – L3, N, PE (5 bars/5-pole)
L1 – L3, ½ N, ½ PE (8 bars/5-pole)
L1 – L3, N, ½ PE (9 bars/5-pole)
Fire load without tap-off points _________1)
LDA1 to LDC3 180 x 180 mm 2) Enclosure dimensions
LDA4 to LDC8 240 x 180 mm 2)
1) Enter data for selected systems. See technical data for values.
2) Please delete as appropriate.
3) In accordance with EN60439-1, a reduction of 95% must be taken into account for currents
> 800 A at a frequency of 60 Hz.
Important planning information
The nominal mounting position of the busbar trunking system is horizontal and edgewise for
the busbars. In very rare cases, due to a specific trunking run or the option of connecting
tap-off units on the side, the busbars might have to be laid flat. The resulting increase in the
internal heat rise of the system necessitates a reduction in rated current. The same applies
to vertical height rises > 1.3 m (see the table in the next section "Type codes").
The LD busbar trunking system is a ventilated system. When the degree of protection is
increased from IP34 to IP54 (enclosed system), the rated current must be derated as
specified in the tables in the next section.
Planning with LD
4.2 System components
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110 Planning Manual, 09/2011, A5E01541101-02
4.2.2 Type code
Definition of the required system using the type code
The basic components of the LD system are determined using a type code. The type is
specified and selected on the basis of rated current, conductor material, system type and
degree of protection.
The resulting type code enables the required system to be precisely defined.
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Planning with LD
4.2 System components
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 111
Selection example
A rated current of 2500 A is calculated for a project. Aluminium conductors shall be used. A
4-pole system has to be used. The cross section of the protective conductor needs to be
equal to the cross section of the phase conductor. The required degree of protection is IP34.
The mounting position is horizontal, edgewise, without height rises. Use of the above table
results in the selection of the following type:
LDA 5423
4.2.3 Sizes, conductor configurations and structure of the busbar package
The LD busbar trunking system is available in two sizes. You can also select the line system
configuration (4-pole/5-pole) and the size of the N/PEN cross section as appropriate for your
application.
Conductor configuration 4-pole 5-pole
180 mm x 180 mm PEN = L PE = N = L
LDA1.2. to LDA3.2.
LDC2.2. to LDC3.2.
/ / /
3(1
/ / /
3(1
240 mm x 180 mm PEN = ½ L PE = N = ½ L
LDA4.1. to LDA8.1.
LDC6.1. to LDC8.1.
/
/
/
/
/
/
3(1
/
/
/
/
/
/
13(
240 mm x 180 mm PEN = L PE = ½ L, N = L
LDA4.2 to LDA8.2.
LDC6.2. to LDC8.2.
/
/
/
3(1
/
/
/
3(1
/
/
/
13(
/
/
/
1
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Structure of the busbar package
An example a 7-bar system (sectional view) is illustrated below. The positions of the
individual phases and the protective conductor PEN are indicated. You can also see the
enclosure profile.
/
/
/
/
/
/
3(1
Figure 4-2 Sectional drawing of a 7-bar system
LD busbar systems are available with aluminium (LDA....) and also copper (LDC....)
conductor materials. Due to the conductors’ special surface finishing, trunking units with
different conductor materials can be combined. In addition to tinning, aluminium bars are
also coated with a layer of nickel.
① Aluminium bar
② Nickel layer, tinning
③ Moulded-plastic coating with high heat resistance
LDA busbar systems with aluminium conductors
① Copper bar
② Tinning
③ Moulded-plastic coating with high heat resistance
LDC busbar systems with copper conductors
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In order for short-circuit rating to be assured and for the pitch of the bars to be maintained,
bar supports are fitted every 200 mm (see diagram):
PP
Figure 4-3 Bar supports fitted
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4.2.4 Straight trunking units
Straight trunking units are used to transmit electrical power and to supply loads.
Straight trunking units for horizontal installation
Without tap-off points
$'
With tap-off points
Length Type
1.6 m LD.....-1.6
2.4 m LD.....-2.4
Standard lengths
3.2 m LD.....-3.2
0.50...0.89 m LD.....-1W*
0.90...1.59 m LD.....-2W*
1.61...2.39 m LD.....-3W*
Optional lengths
2.41...3.19 m LD.....-4W*
Straight trunking unit for expansion
compensation
1.2 m LD.....-D
3.2 m LD.....-K-3, 2-3AD
3 tap-off points
3.2 m LD.....-K-3,2-2AD
2 tap-off points
Standard lengths
with 1, 2 or 3 tap-off points
3.2 m LD.....-K-3.2-AD
1 tap-off point
2.20...2.40 m LD.....-K-2W*-2AD Optional lengths
with 2 tap-off points 2.41...3.20 m LD.....-K-3W*-2AD
1.20...1.60 m LD.....-K-1W*-AD
1.61...2.40 m LD.....-K-2W*-AD
Optional lengths
with 1 tap-off point
2.41...3.20 m LD.....-K-3W*-AD
W = optional length
* = length in m
AD Tap-off point
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Straight trunking units for vertical installation
Without tap-off points with integrated
expansion compensation
$'
With 1 tap-off point and integrated expansion
compensation
Length Type
2.4 m LD.....-V-2.4 Standard length
3.2 m LD.....-V-3.2
2.29 ... 2.80 m LD.....-V-1W*
2.81 ... 3.00 m LD.....-V-2W*
Optional lengths
3.01 ... 3.19 m LD.....-V-3W*
2.4 m LD.....-K-V-2.4-AD Standard lengths
with 1 tap-off point 3.2 m LD.....-K-V-3.2-AD
2.29 ... 2.80 m LD.....-K-V-1W*-AD
2.81 ... 3.00 m LD.....-K-V-2W*-AD
Optional lengths
with 1 tap-off point
3.01 ... 3.19 m LD.....-K-V-3W*-AD
W = optional length
* = length in m
AD Tap-off point
Note
Expansion compensation
Due to heat dissipation at rated load, the busbars in the trunking unit expand. To
compensate this expansion in length, you need to include expansion compensation units at
defined intervals when planning your horizontal installation.
With trunking units for vertical installation, the expansion compensation is integrated.
When planning horizontal busbar runs, please remember:
A straight trunking run without expansion compensation between two junction units must
not exceed 10 m in length.
A straight trunking run between a junction unit and the end cap must not exceed 25 m in
length. In the case of longer trunking run lengths, planning provision has to be made
accordingly for expansion compensation units.
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Tap-off points
Tap-off points are only possible on straight trunking units (both standard lengths and optional
lengths possible). Options are:
● Tap-off point on TOP: ...-AD
● Tap-off point BOTTOM: ...-ADU
● Tap-off points on TOP and BOTTOM: ...-ADO+U
With a trunking unit with a tap-off point at the TOP and BOTTOM, only one tap-off unit can
be used at a time. The required distance between tap-off points is 1 m.
The required type should be determined during engineering, based on the mounting position
of the busbar.
In the case of optional trunking units with tap-off point, a minimum clearance of 0.6 m is
required between the end of the busbar and a tap-off point.
A coding bracket is located on both sides of a tap-off point. This guarantees non-
interchangeability and correct phasing sequence installation of the tap-off units.
Figure 4-4 Trunking unit with tap-off point
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4.2.5 Junction units
Junction units for horizontal installation
<;
Elbow LD.....-L...
<
=
;
Z unit LD.....-Z.-Z*
Length Type
X = 0.5...1.24 m
Y = 0.5...1.24 m
LD.....-L...
Length System Trunking unit Type
X/Y = 0.5 m Z = 0.36 ... 0.99 m LD.1 to LD.3 180 x 180 mm
Z = 0.48 ... 0.99 m LD.4 to LD.8 240 x 180 mm
LD.....-Z.-Z*
* Optional length in m
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Junction units for horizontal and vertical installation
<
;
Elbow LD.....-L.
;
<
=
Z unit LD.....-Z.-Z*
Length Type
X = 0.5...1.24 m
Y = 0.5...1.24 m
LD.....-L...
X = 0.5...1.24 m
Y = 0.5...1.24 m
Z = 0.36...0.99 m
LD.....-Z.-Z*
;
<
Offset knee LD.....-L.
7< 7;
$
T unit LD.....-T.
Length Type
X = 0.5...1.24 m
Y = 0.5...1.24 m
LD.....-L...
TX = 0.58 m
TY = 0.62 m
A = 0.5 m
LD.....-T.
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4.2.6 Distribution link for Siemens power distribution boards
Connection to the Siemens SIVACON power distribution system as type-tested low-voltage
switchgear and controlgear assembly (TTA) compliant with DIN EN 60439-1 and DIN EN 60439-2
The busbar trunking system can be linked to the distribution system from above or below.
The link between the busbar trunking system and the SIVACON 8PV, 8PT, S4 and S8
distribution system ensures high short-circuit rating backed up by type testing and huge
reliability as regards power transmission.
Rated currents
All modules for rated currents up to 5000 A have been type tested.
Figure 4-5 Distribution board link
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4.2.7 Connection unit for non-Siemens distribution boards
If you wish to connect the busbar trunking system to a non-Siemens distribution board, you
can establish this connection using an LD connection unit for non-Siemens distribution
boards .... . The connection unit is built into the distribution board and serves as an interface
to the copper connections of the distribution system.
Rated currents
● The maximum rated currents are listed in the Technical data section.
● The temperature limit of busbars coated with insulating materials is 135°C.
● Possible conductor cross sections for the copper connections are also listed in the
Technical data section.
Installing the connection unit
The connections in the distribution board must be copper-plated by the board manufacturer
or in compliance with that manufacturer's specifications. The board manufacturer must
ensure that the required short-circuit rating is achieved and the permissible temperature limit
of the non-Siemens connection unit is not exceeded.
Figure 4-6 Connection unit for non-Siemens distribution boards
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4.2.8 Connection unit for transformers and distribution boards
There are four different transformer connection pieces (LD.....-AS.) available for all rated
current ranges to connect various transformers to a busbar trunking system:
D
Connection unit LD.....-AS...
D
Connection unit LD.....-AS.-T
Type of connection unit Selectable phase clearance Possible phase sequences
LD.....-AS1(-T) 150...180 mm
a = 725 m
L1, L2, L3, PEN
PEN, L3, L2, L1
LD.....-AS2(-T) 190...380 mm
a = 1085 m
L1, L2, L3, PEN
PEN, L3, L2, L1
LD.....-AS3(-T) 450...750 mm
a = 1430 m
Lx, PEN, L2, Lx
Lx, L2, PEN, Lx
Lx = L1 or L3
LD.....-AS4(-T) 450...750 mm
a = 1930 m
L1, L2, L3, PEN
PEN, L3, L2, L1
We recommend a maximum clearance of 200 mm between the tags on the connection
piece.
The universal connection unit can also be used to connect distribution boards.
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4.2.9 Incoming cable connection unit
If power needs to be supplied to the busbar trunking system via cables, you should use an
LDA(C)....-KE incoming cable connection unit.
Figure 4-7 Incoming cable connection unit
The incoming cable connection unit is designed for the following rated currents:
● 1100 to 2600 A (with IP34)
● 900 to 2000 A (with IP54).
Enclosure sizes
Depending on the system, three sizes can be selected:
Size 1: LDA1...-KE to LDA2...-KE
Size 2: LDA3...-KE and LDA4...-KE
LDC2...-KE
Size 3: LDA5...-KE.
The maximum dimensions are 920 mm x 639 mm x 490 mm (W x H x D).
IP34 or IP54 degree of protection can be selected.
You can connect single-core or multi-core cables. You can connect cross sections up to
300 mm2 (bolted connection) directly to the incoming cable connection unit bars.
The sheet steel flange plates and the cable sleeves are included in the scope of supply of
the standard product. Single-core cables are supplied with an undrilled aluminium plate for
cable entry.
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4.2.10 Coupling units
Coupling units are used if devices or sections of the power supply need to be disconnected
or connected accordingly. To adapt the busbar trunking system to the actual load, the busbar
cross section can be reduced and protected against short circuits and overloads with a
coupling unit.
Coupling units can be fitted with switch disconnectors or circuit breakers as appropriate for
their application. Coupling units resistant to accidental arcs can be supplied as an option.
Figure 4-8 Coupling units
Rated currents
Rated currents adapted to the systems between 1100 and 3000 A can be supplied as
appropriate for the application.
Operator control
The coupling units can be operated using a handle or even a motor drive.
Dimensions
The installation length in the busbar trunking run is 1600 mm.
The dimensions are dependent on the device type and the current size and must be
obtained project-specifically.
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4.2.11 Tap-off units
Tap-off for different current ratings
Tap-offs for different current ratings are required, depending on the application and type and
size of loads. These tap-offs are implemented in the form of tap-off units with fuse switch-
disconnectors or with circuit breakers.
There are basically two types of tap-off unit:
● With fuse switch disconnector
● With circuit breaker
Figure 4-9 Tap-off unit with fuse switch disconnector and trunking unit with tap-off point
Early-make PE/PEN
The current tap in the tap-off unit is implemented as an early-make (mounting) or late-break
(removal) PE/PEN conductor contact.
In a 4-conductor system, this is ensured by a longer PEN bar at the contact mechanism. In a
5-conductor system the PE connection is established via grinding contacts on the coding
brackets.
Anti-rotation feature and non-interchangeability
The coding brackets on the tap-off unit and on the trunking unit's tap-off point (lock-and-key
principle) ensure:
● Non-interchangeability and correct assignment of 4 or 5-pole tap-off units to the
associated LD systems
● Orientation feature to prevent incorrect connections between the tap-off units and tap-off
points
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4.2.11.1 Tap-off units with fuse switch disconnector
Rated currents
Tap-off units 125 A, 2 x 125 A, 250 A, 400 A and 630 A are available for selection.
Depending on the current level, LV HRC fuses size NH 00, NH 1, NH 2 or NH 3 are used.
The compact dimensions mean that only one enclosure size is required for all rated current
ranges.
Operator control
The tap-off units with fuse switch disconnector are operated by hand using a swivel
mechanism.
Degree of protection
The standard degree of protection is IP30. IP54 degree of protection can be provided as an
option.
Degree of protection IP30
Degree of protection IP54
Cable compartment/cable entry
A bolted connection is used for cables with cross sections up to 2 x 240 mm2. In the
standard version, the cable entry is on the front face. Adding a cable compartment enables
cable entry from the side. The cables are routed via an integrated cable propping bar in the
tap-off unit (cleats to be provided by the customer). The sectional flange plate facilitates the
laying of the cables.
Opening the tap-off unit
Do not open the cable compartment cover until you have removed the fuse switch
disconnector handle and, consequently, the fuse. This will ensure that the cable
compartment is voltage-free when the cover is removed. The part of the contact device in the
front of the tap-off unit is "finger-proof".
Type designation
The type designation for tap-off units with LV HRC fuse switch disconnectors is
LD-.AK/3ST...
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4.2.11.2 Tap-off units resistant to accidental arcs and with fuse switch disconnector
Rated currents
Two tap-off units for 400 A and 540 A are available for selection for use with LV HRC fuses.
Operator control
The LV HRC fuse links of size NH 3 are switched on and off via the door-coupling operating
mechanism.
Degree of protection
The standard degree of protection is IP54.
Figure 4-10 Degree of protection IP54
Cable compartment/cable entry
A bolted connection is used for cables with cross sections up to 2 x 4 x 240 mm2. Cables can
be fed in on both sides. In the case of a single-core cable entry, an aluminium plate fitted
with metric screwed joints is included in the scope of supply.
Resistance to arc faults
The tap-off units are resistant to arc faults. This has been verified by means of accidental arc
testing to IEC 439-1 Supplement 2, EN 60439-1 Supplement 2, VDE 0660 Part 500
Supplement 2 and confirmed by a test report.
Type designation
The type designation for tap-off units with LV HRC switch disconnectors is
LD- AK./FSAM.
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4.2.11.3 Tap-off units with circuit-breakers
On tap-off units with circuit breakers you can select the switching capacity, the number of
actively switched poles, the type of operator control and the signalling options:
● Rated currents from 100 A to 1250 A.
● 3 or 4-pole designs
● Switching capacity: normal, standard or high (see Technical data)
Circuit breaker with manual operating mechanism
Figure 4-11 Circuit breaker with manual operating mechanism
This type of tap-off unit has a circuit breaker which can be controlled from the outside using
a handle.
Degree of protection
The tap-off units have IP54 degree of protection.
Opening the tap-off unit
The contact compartment and the copper connections between the contact mechanism and
the circuit breaker are encapsulated in a finger-proof casing. The cover can only be opened
if the breaker has been deactivated. This ensures voltage-free load when the cover is
removed.
Cable connection
On the load side, the outgoing cables are routed directly via the circuit breaker. The PE/PEN
conductor is fixed to a bolted connection as appropriate for the cross section. Single-core or
multi-core cables can be fed in from the side or via the front face. The sectional flange plate
facilitates the laying of the cables.
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Circuit breaker with door handle, also available with motor drive
This version has a motor drive instead of a door handle.
Furthermore, you can choose either an undervoltage or a shunt release as appropriate for
your application. The operating voltage of the motorised operating mechanism must be
ensured externally (220 V AC to 250 V AC). The connections for the motor drive are
designed for terminal connection.
The feeder compartment and the copper connections between the contact mechanism and
the circuit breaker are encapsulated in a finger-proof casing. The connection on the load side
is made in the same way as on the version with door handle.
Type designation
The type designation for tap-off units with circuit breakers is LD-.AK./LS.
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4.2.12 Additional equipment
End caps
You will need to install an end cap with a hook or a bolt at the end of a busbar run depending
on the version of the trunking unit.
End cap with hook
End cap with bolt
Suspension bracket
The LD-B1/B2 suspension bracket is used to mount the busbar trunking system in a
horizontal installation.
● B1 for enclosure dimensions 180 mm x 180 mm
● B2 for enclosure dimensions 240 mm x 180 mm
Figure 4-12 Suspension bracket
Fixing bracket
If you install the LD system vertically, you will need to use the LD-BV fixing bracket (for fixing
distances, see the Dimension drawings section).
Figure 4-13 Fixing bracket
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4.3 Technical data
4.3.1 LD general data
Standards and regulations IEC 60439-1 and -2, DIN EN 60439-1 and -2
Resistance to extreme climates
Damp heat, constant, to IEC 60068-2-78
Damp heat, cyclic, to IEC 60068-2-30
Cold in accordance with IEC 60068-2-1
Temperature change in accordance with IEC 60068-2-14
Salt spray test in accordance with IEC 60068-2-52
40°C / 93% / RH / 56d
56 x (25-40°C/3h ; 40°C/9h ; 40-25°C/3-6h ;
25°C/6h)/95% RH
-45°C, 16h
-45° to 55°C; 5 cycles (1°C/min); holding time min. 30 min
degree of severity 3
Ambient temperature min./max./24-hour average °C –5/+40/+35
Environmental classes 1K5, 3K7L, 2K2, 1C2, 2C2, 3C2, 1B2, 2B2, 3B2, 1S2, 2S2,
3S2
Degree of protection IP31 ventilated (with busbars installed horizontally and flat)
IP34 ventilated (with busbars installed horizontally and
edgewise)
IP54 enclosed
Standard mounting position Busbars installed edgewise in trunking units with horizontal
installation
Torque for single-bolt terminal Nm 80
Busbar surface treatment Entire length coated with insulating material, nickel-plated
and tinned: LDA;
tinned: LDC
Material trunking units, tap-off units Sheet steel with powdered paint finish
Colour of trunking units, tap-off units RAL 7035 (light grey)
Dimensions See Dimension drawings
Weight See Chapter Weights (Page 144)
Rated insulation voltage to DIN EN 60439-1 V AC 1000
Rated operational voltage (power transmission)
with overvoltage category III/3
with overvoltage category IV/3
V AC
V AC
1000
690
Rated operational voltage (power distribution)
with overvoltage category III/3
V AC 400 (690) 1)
Rated frequency Hz 50 / 60 2)
1) Tap-on units on request
2) In accordance with EN60439-1, a reduction of 95% must be taken into account for currents > 800 A
at a frequency of 60 Hz.
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4.3.2 LDA.4.. trunking units (4-pole, aluminium)
LDA142. LDA242. LDA342. LDA441. LDA442. LDA541. LDA542. System-specific data
PEN=L PEN=L PEN=L PEN=½L PEN=L PEN=½L PEN=L
Rated current Ie1)
IP34 Ie A 1100 1250 1600 2000 2000 2500 2500 Horizontal/
edgewise 2) IP54 Ie A 900 1000 1200 1500 1500 1800 1800
IP34 Ie A 950 1100 1250 1700 1700 2100 2100 Vertical
IP54 Ie A 900 1000 1200 1500 1500 1800 1800
Horizontal/flat IP31/IP54 Ie A 700 750 1000 1200 1200 1700 1700
Impedance
Resistance R20 mΩ/m 0.061 0.047 0.047 0.029 0.031 0.023 0.024
Reactance X20 mΩ/m 0.052 0.043 0.043 0.03 0.031 0.023 0.030
of the conducting paths at
50 Hz and + 20 °C busbar
temperature Impedance Z20 mΩ/m 0.079 0.064 0.064 0.041 0.043 0.033 0.038
Resistance R1 mΩ/m 0.072 0.054 0.057 0.035 0.036 0.027 0.028
Reactance X1 mΩ/m 0.051 0.043 0.043 0.028 0.031 0.023 0.029
of the conducting paths at
50 Hz and final heating of
busbars Impedance Z1 mΩ/m 0.088 0.069 0.072 0.044 0.047 0.036 0.041
Resistance RF mΩ/m 0.144 0.106 0.106 0.085 0.083 0.075 0.055
Reactance XF mΩ/m 0.167 0.178 0.178 0.113 0.117 0.109 0.115
of the conducting paths for
4-pole systems under fault
conditions acc. to
EN 60439-2 Impedance ZF mΩ/m 0.218 0.207 0.207 0.147 0.144 0.132 0.128
Zero impedance
R
0 mΩ/m 0.282 0.217 0.217 0.168 0.171 0.180 0.120
X
0 mΩ/m 0.233 0.200 0.200 0.178 0.175 0.154 0.154
for 4-pole systems acc. to
DIN EN 60909-0/ VDE 0102
Z
0 mΩ/m 0.367 0.295 0.295 0.249 0.244 0.237 0.195
Short-circuit rating
rms value
t = 0.1 s
Icw kA 55 70 80 110 110 125 125 Rated short-time withstand
current
rms value
t = 1 s
Icw kA 40 55 58 80 80 110 110
Rated impulse withstand
current
Peak value Ipk kA 121 154 176 242 242 275 275
Conductor material Aluminium
No. of busbars 4 4 4 7 8 7 8
Conductor cross section L1, L2, L3 A mm2 530 706 706 1060 1060 1412 1412
PEN A mm2 530 706 706 530 1060 706 1412
Fire load
Trunking unit without tap-off
point
KWh/m 7.08 7.09 7.09 10.87 11.99 10.87 11.99
per tap-off point KWh 8.32 8.32 8.32 12.04 12.96 12.04 12.96
Max. fixing distances
for conventional mechanical
load
m 6 6 6 5 5 5 5
1) Dependent upon degree of protection and laying method
2) Incl. height rises ≤ 1.3 m
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LDA641. LDA642. LDA741. LDA742. LDA841. LDA842. System-specific data
PEN=½L PEN=L PEN=½L PEN=L PEN=½L PEN=L
Rated current Ie1)
IP34 Ie A 3000 3000 3700 3700 4000 4000 Horizontal/
edgewise 2) IP54 Ie A 2000 2000 2400 2400 2700 2700
IP34 Ie A 2300 2300 2800 2800 3400 3400 Vertical
IP54 Ie A 2000 2000 2400 2400 2700 2700
Horizontal/flat IP31/IP54 Ie A 1800 1800 2200 2200 2350 2350
Impedance
Resistance R2
0
mΩ/m 0.023 0.024 0.017 0.016 0.015 0.013
Reactance X20 mΩ/m 0.023 0.029 0.019 0.022 0.017 0.019
of the conducting paths at 50 Hz
and + 20 °C busbar temperature
Impedance Z20 mΩ/m 0.033 0.037 0.026 0.027 0.023 0.023
Resistance R1 mΩ/m 0.030 0.029 0.021 0.020 0.018 0.016
Reactance X1 mΩ/m 0.024 0.029 0.019 0.022 0.017 0.019
of the conducting paths at 50 Hz
and final heating of busbars
Impedance Z1 mΩ/m 0.038 0.041 0.029 0.030 0.025 0.025
Resistance RF mΩ/m 0.075 0.056 0.055 0.041 0.049 0.038
Reactance XF mΩ/m 0.109 0.119 0.083 0.093 0.086 0.080
of the conducting paths for 4-pole
systems under fault conditions
acc. to EN 60439-2 Impedance ZF mΩ/m 0.132 0.131 0.099 0.101 0.099 0.088
Zero impedance
R
0 mΩ/m 0.180 0.120 0.126 0.090 0.110 0.075
X
0 mΩ/m 0.154 0.153 0.097 0.119 0.086 0.087
for 4-pole systems acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.237 0.194 0.159 0.149 0.140 0.115
Short-circuit rating
rms value
t = 0.1 s
Icw kA 130 130 130 130 130 130 Rated short-time withstand
current
rms value
t = 1 s
Icw kA 116 116 116 116 116 116
Rated impulse withstand current Peak value Ipk kA 286 286 286 286 286 286
Conductor material Aluminium
No. of busbars 7 8 7 8 7 8
Conductor cross section L1, L2, L3 A mm2 1412 1412 2044 2044 2464 2464
PEN A mm2 706 1412 1022 2044 1232 2464
Fire load
Trunking unit without tap-off point KWh/m 10.87 11.99 10.87 11.99 10.87 11.99
per tap-off point KWh 12.04 12.96 12.04 12.96 12.04 12.96
Max. fixing distances
for conventional mechanical load m 5 5 5 5 5 5
1) Dependent upon degree of protection and laying method
2) Incl. height rises ≤ 1.3 m
Planning with LD
4.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 133
4.3.3 LDA.6.. trunking units (5-pole, aluminium)
LDA162. LDA262. LDA362. LDA461. LDA462. LDA561. LDA562.System-specific data
N=L N=L N=L N=½L N=L N=½L N=L
Rated current Ie1)
IP34 Ie A 1100 1250 1600 2000 2000 2500 2500 Horizontal/
edgewise 2) IP54 Ie A 900 1000 1200 1500 1500 1800 1800
IP34 Ie A 950 1100 1250 1700 1700 2100 2100 Vertical
IP54 Ie A 900 1000 1200 1500 1500 1800 1800
Horizontal/flat IP31/IP54 Ie A 700 750 1000 1200 1200 1700 1700
Impedance
Resistance R20 mΩ/m 0.061 0.048 0.048 0.030 0.030 0.023 0.025
Reactance X20 mΩ/m 0.052 0.043 0.043 0.031 0.031 0.024 0.031
of the conducting paths at 50 Hz and
+ 20 °C busbar temperature
Impedance Z20 mΩ/m 0.079 0.064 0.064 0.043 0.043 0.033 0.040
Resistance R1 mΩ/m 0.072 0.054 0.059 0.036 0.036 0.028 0.029
Reactance X1 mΩ/m 0.051 0.043 0.042 0.031 0.031 0.024 0.031
of the conducting paths at 50 Hz and final
heating of busbars
Impedance Z1 mΩ/m 0.088 0.069 0.072 0.047 0.047 0.037 0.042
Resistance RF mΩ/m 0.162 0.108 0.108 0.109 0.109 0.092 0.084
Reactance XF mΩ/m 0.231 0.201 0.201 0.126 0.128 0.134 0.131
of the conducting paths for 5-pole
systems (PE) under fault conditions
acc. to EN 60439-2
Impedance ZF mΩ/m 0.283 0.228 0.228 0.168 0.168 0.163 0.156
Resistance RF mΩ/m 0.147 0.108 0.108 0.112 0.067 0.076 0.056
Reactance XF mΩ/m 0.197 0.173 0.173 0.108 0.109 0.106 0.114
of the conducting paths for
5-pole systems (N) under fault
conditions acc. to EN 60439-2
Impedance ZF mΩ/m 0.246 0.204 0.204 0.155 0.128 0.130 0.127
Zero impedance
R
0 mΩ/m 0.310 0.240 0.240 0.250 0.250 0.217 0.213
X
0 mΩ/m 0.415 0.200 0.200 0.235 0.235 0.202 0.265
for 5-pole systems (PE) acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.518 0.295 0.295 0.343 0.343 0.297 0.340
R
0 mΩ/m 0.293 0.231 0.231 0.267 0.146 0.181 0.121
X
0 mΩ/m 0.260 0.219 0.219 0.144 0.144 0.128 0.167
for 5-pole systems (N) acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.392 0.319 0.319 0.303 0.205 0.221 0.206
Short-circuit rating
rms value t = 0.1 s Icw kA 55 70 80 110 110 125 125 Rated short-time withstand current
rms value t = 1 s Icw kA 40 55 58 80 80 110 110
Rated impulse withstand current Peak value Ipk kA 121 154 176 242 242 275 275
rms value t = 0.1 s Icw kA 33 42 48 66 66 75 75 Rated short-time withstand current
of the 5th conductor rms value t = 1 s Icw kA 24 33 35 48 48 66 66
Conductor material Aluminium
No. of busbars 5 5 5 8 9 8 9
Conductor cross section L1, L2, L3 A mm2 530 706 706 1060 1060 1412 1412
N A mm
2 530 706 706 530 1060 6.73 1412
PE A mm2 530 706 706 530 530 706 706
Fire load
Trunking unit without tap-off point KWh/m 7.28 7.29 7.29 10.87 11.99 10.87 11.99
per tap-off point KWh 8.32 8.32 8.32 12.04 12.96 12.04 12.96
Max. fixing distances
for conventional mechanical load m 6 6 6 5 5 5 5
1) Dependent upon degree of protection and laying method
2) Incl. height rises ≤ 1.3 m
Planning with LD
4.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
134 Planning Manual, 09/2011, A5E01541101-02
LDA661. LDA662. LDA761. LDA762. LDA861. LDA862. System-specific data
N=½L N=L N=½L N=L N=½L N=L
Rated current Ie1)
IP34 Ie A 3000 3000 3700 3700 4000 4000 Horizontal/edgewise 2)
IP54 Ie A 2000 2000 2400 2400 2700 2700
IP34 Ie A 2300 2300 2800 2800 3400 3400 Vertical
IP54 Ie A 2000 2000 2400 2400 2700 2700
Horizontal/flat IP31/IP54 Ie A 1800 1800 2200 2200 2350 2350
Impedance
Resistance R20 mΩ/m 0.023 0.023 0.017 0.018 0.014 0.015
Reactance X20 mΩ/m 0.024 0.029 0.019 0.025 0.022 0.021
of the conducting paths at 50 Hz and
+ 20 °C busbar temperature
Impedance Z20 mΩ/m 0.033 0.037 0.026 0.030 0.026 0.026
Resistance R1 mΩ/m 0.029 0.030 0.020 0.021 0.017 0.018
Reactance X1 mΩ/m 0.024 0.031 0.020 0.025 0.021 0.021
of the conducting paths at 50 Hz and final
heating of busbars
Impedance Z1 mΩ/m 0.037 0.043 0.028 0.033 0.027 0.027
Resistance RF mΩ/m 0.092 0.084 0.068 0.065 0.055 0.056
Reactance XF mΩ/m 0.134 0.133 0.110 0.114 0.102 0.105
of the conducting paths for 5-pole
systems (PE) under fault conditions acc.
to EN 60439-2
Impedance ZF mΩ/m 0.163 0.157 0.129 0.131 0.116 0.119
Resistance RF mΩ/m 0.076 0.057 0.53 0.042 0.049 0.037
Reactance XF mΩ/m 0.106 0.113 0.080 0.091 0.084 0.086
of the conducting paths
for 5-pole systems (N) under fault
conditions acc. to EN 60439-2
Impedance ZF mΩ/m 0.130 0.127 0.096 0.100 0.097 0.094
Zero impedance
R
0 mΩ/m 0.217 0.212 0.163 0.166 0.145 0.146
X
0 mΩ/m 0.202 0.263 0.175 0.220 0.196 0.196
for 5-pole systems (PE) acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.297 0.338 0.240 0.275 0.243 0.244
R
0 mΩ/m 0.181 0.122 0.130 0.089 0.115 0.079
X
0 mΩ/m 0.128 0.155 0.102 0.093 0.095 0.100
for 5-pole
systems (N) acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.221 0.198 0.165 0.129 0.149 0.127
Short-circuit rating
rms value t = 0.1 s Icw kA 130 130 130 130 130 130 Rated short-time withstand current
rms value t = 1 s Icw kA 116 116 116 116 116 116
Rated impulse withstand current Peak value Ipk kA 286 286 286 286 286 286
rms value t = 0.1 s Icw kA 78 78 78 78 78 78 Rated short-time withstand current of the
5th conductor rms value t = 1 s Icw kA 70 70 70 70 70 70
Conductor material Aluminium
No. of busbars 8 9 8 9 8 9
Conductor cross section L1, L2, L3 A mm2 1412 1412 2044 2044 2464 2464
N A mm
2 706 1412 1022 2044 1232 2464
PE A mm2 706 706 1022 1022 1232 1232
Fire load
Trunking unit without tap-off point KWh/m 10.87 11.99 10.87 11.99 10.87 11.99
per tap-off point KWh 12.04 12.96 12.04 12.96 12.04 12.96
Max. fixing distances
for conventional mechanical load m 5 5 5 5 5 5
1) Dependent upon degree of protection and laying method
2) Incl. height rises ≤ 1.3 m
Planning with LD
4.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 135
4.3.4 LDC.4.. trunking units (4-pole, copper)
LDC242. LDC342. LDC641. LDC642. System-specific data
PEN=L PEN=L PEN=½L PEN=L
Rated current Ie1)
IP34 Ie A 2000 2600 3400 3400 Horizontal/edgewise 2)
IP54 Ie A 1600 2000 2600 2600
IP34 Ie A 1650 2100 2700 2700 Vertical
IP54 Ie A 1600 2000 2600 2600
Horizontal/flat IP31/IP54 Ie A 1200 1550 2000 2000
Impedance
Resistance R20 mΩ/m 0.030 0.026 0.015 0.015
Reactance X20 mΩ/m 0.042 0.035 0.026 0.026
of the conducting paths at 50 Hz
and + 20 °C busbar temperature
Impedance Z20 mΩ/m 0.052 0.043 0.030 0.030
Resistance R1 mΩ/m 0.037 0.028 0.017 0.018
Reactance X1 mΩ/m 0.042 0.036 0.026 0.027
of the conducting paths at 50 Hz
and final heating of busbars
Impedance Z1 mΩ/m 0.056 0.046 0.031 0.032
Resistance RF mΩ/m 0.075 0.056 0.048 0.037
Reactance XF mΩ/m 0.170 0.163 0.107 0.107
of the conducting paths for 4-pole
systems under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.186 0.173 0.117 0.113
Zero impedance
R
0 mΩ/m 0.144 0.114 0.116 0.079
X
0 mΩ/m 0.199 0.225 0.124 0.130
acc. to DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.246 0.252 0.169 0.152
Short-circuit rating
rms value t = 0.1 s Icw kA 80 80 130 130 Rated short-time withstand current
rms value t = 1 s Icw kA 58 58 116 116
Rated impulse withstand current Peak value Ipk kA 176 176 286 286
Conductor material Copper
No. of busbars 4 4 7 8
Conductor cross section L1, L2, L3 A mm2 706 1022 1412 1412
PEN A mm2 706 1022 706 1412
Fire load
Trunking unit without tap-off point KWh/m 7.09 7.09 10.87 11.99
per tap-off point KWh 8.32 8.32 12.04 12.96
Max. fixing distances
for conventional mechanical load m 5 4 4 4
1) Dependent upon degree of protection and laying method
2) Incl. height rises ≤ 1.3 m
Planning with LD
4.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
136 Planning Manual, 09/2011, A5E01541101-02
LDC741. LDC742. LDC841. LDC842. System-specific data
PEN=½L PEN=L PEN=½L PEN=L
Rated current Ie1)
IP34 Ie A 4400 4400 5000 5000 Horizontal/edgewise 2)
IP54 Ie A 3200 3200 3600 3600
IP34 Ie A 3500 3500 4250 4250 Vertical
IP54 Ie A 3200 3200 3600 3600
Horizontal/flat IP31/IP54 Ie A 2600 2600 3000 3000
Impedance
Resistance R20 mΩ/m 0.012 0.008 0.008 0.009
Reactance X20 mΩ/m 0.023 0.021 0.021 0.018
of the conducting paths at 50 Hz and
+ 20 °C busbar temperature
Impedance Z20 mΩ/m 0.026 0.024 0.022 0.020
Resistance R1 mΩ/m 0.012 0.013 0.011 0.011
Reactance X1 mΩ/m 0.023 0.022 0.020 0.018
of the conducting paths at 50 Hz and final
heating of busbars
Impedance Z1 mΩ/m 0.026 0.025 0.023 0.021
Resistance RF mΩ/m 0.036 0.027 0.031 0.026
Reactance XF mΩ/m 0.090 0.086 0.073 0.080
of the conducting paths for 4-pole systems
under fault conditions acc. to EN 60439-2
Impedance ZF mΩ/m 0.097 0.090 0.079 0.085
Zero impedance
R
0 mΩ/m 0.083 0.056 0.070 0.050
X
0 mΩ/m 0.072 0.093 0.088 0.106
acc. to DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.109 0.109 0.113 0.118
Short-circuit rating
rms value t = 0.1 s Icw kA 130 130 130 130 Rated short-time withstand current
rms value t = 1 s Icw kA 116 116 116 116
Rated impulse withstand current Peak value Ipk kA 286 286 286 286
Conductor material Copper
No. of busbars 7 8 7 8
Conductor cross section L1, L2, L3 A mm2 2044 2044 2464 2464
PEN A mm2 1022 2044 1232 2464
Fire load
Trunking unit without tap-off point KWh/m 10.87 11.99 10.87 11.99
per tap-off point KWh 12.04 12.96 12.04 12.96
Max. fixing distances
for conventional mechanical load m 3 3 2 2
1) Dependent upon degree of protection and laying method
2) Incl. height rises ≤ 1.3 m
Planning with LD
4.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 137
4.3.5 LDC.6.. trunking units (5-pole, copper)
LDC262. LDC362. LDC661. LDC662. System-specific data
N=L N=L N=½L PEN=L
Rated current Ie1)
IP34 Ie A 2000 2600 3400 3400 Horizontal/edgewise 2)
IP54 Ie A 1600 2000 2600 2600
IP34 Ie A 1650 2100 2700 2700 Vertical
IP54 Ie A 1600 2000 2600 2600
Horizontal/flat IP31/IP54 Ie A 1200 1550 2000 2000
Impedance
Resistance R20 mΩ/m 0.036 0.029 0.015 0.017
Reactance X20 mΩ/m 0.043 0.037 0.027 0.027
of the conducting paths at 50 Hz and
+ 20 °C busbar temperature
Impedance Z20 mΩ/m 0.056 0.047 0.031 0.032
Resistance R1 mΩ/m 0.037 0.031 0.017 0.018
Reactance X1 mΩ/m 0.043 0.038 0.028 0.028
of the conducting paths at 50 Hz and
final heating of busbars
Impedance Z1 mΩ/m 0.057 0.049 0.033 0.034
Resistance RF mΩ/m 0.081 0.060 0.062 0.058
Reactance XF mΩ/m 0.204 0.186 0.139 0.124
of the conducting paths for 5-pole
systems (PE) under fault conditions acc.
to EN 60439-2
Impedance ZF mΩ/m 0.220 0.195 0.153 0.137
Resistance RF mΩ/m 0.078 0.059 0.048 0.037
Reactance XF mΩ/m 0.193 0.149 0.110 0.105
of the conducting paths for 5-pole
systems (N) under fault conditions acc.
to EN 60439-2
Impedance ZF mΩ/m 0.208 0.160 0.120 0.112
Zero impedance
R
0 mΩ/m 0.179 0.134 0.149 0.149
X
0 mΩ/m 0.387 0.357 0.238 0.248
for 5-pole systems (PE) acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.426 0.381 0.281 0.289
R
0 mΩ/m 0.150 0.110 0.119 0.080
X
0 mΩ/m 0.189 0.180 0.145 0.135
for 5-pole systems (N) acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.241 0.211 0.187 0.157
Short-circuit rating
rms value t = 0.1 s Icw kA 80 80 130 130 Rated short-time withstand current
rms value t = 1 s Icw kA 58 58 116 116
Rated impulse withstand current Peak value Ipk kA 176 176 286 286
rms value t = 0.1 s Icw kA 48 48 78 78 Rated short-time withstand current of the
5th conductor rms value t = 1 s Icw kA 35 35 70 70
Conductor material Copper
No. of busbars 5 5 8 9
Conductor cross section L1, L2, L3 A mm2 706 1022 1412 1412
N A mm
2 706 1022 706 1412
PE A mm2 706 1022 706 706
Fire load
Trunking unit without tap-off point KWh/m 7.29 7.29 10.87 11.99
per tap-off point KWh 8.32 8.32 12.04 12.96
Max. fixing distances
for conventional mechanical load m 5 4 4 4
1) Dependent upon degree of protection and laying method
2) Incl. height rises ≤ 1.3 m
Planning with LD
4.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
138 Planning Manual, 09/2011, A5E01541101-02
LDC761. LDC762. LDC861. LDC862. System-specific data
N=½L N=L N=½L N=L
Rated current Ie1)
IP34 Ie A 4400 4400 5000 5000 Horizontal/edgewise 2)
IP54 Ie A 3200 3200 3600 3600
IP34 Ie A 3500 3500 4250 4250 Vertical
IP54 Ie A 3200 3200 3600 3600
Horizontal/flat IP31/IP54 Ie A 2600 2600 3000 3000
Impedance
Resistance R20 mΩ/m 0.011 0.014 0.012 0.012
Reactance X20 mΩ/m 0.023 0.021 0.018 0.020
of the conducting paths at 50 Hz and
+ 20 °C busbar temperature
Impedance Z20 mΩ/m 0.025 0.025 0.022 0.023
Resistance R1 mΩ/m 0.013 0.015 0.013 0.013
Reactance X1 mΩ/m 0.024 0.022 0.020 0.020
of the conducting paths at 50 Hz and
final heating of busbars
Impedance Z1 mΩ/m 0.027 0.027 0.024 0.024
Resistance RF mΩ/m 0.048 0.050 0.045 0.048
Reactance XF mΩ/m 0.118 0.133 0.123 0.119
of the conducting paths for 5-pole
systems (PE) under fault conditions acc.
to EN 60439-2
Impedance ZF mΩ/m 0.127 0.142 0.131 0.128
Resistance RF mΩ/m 0.038 0.027 0.031 0.025
Reactance XF mΩ/m 0.092 0.089 0.082 0.079
of the conducting paths for 5-pole
systems (N) under fault conditions acc.
to EN 60439-2
Impedance ZF mΩ/m 0.100 0.093 0.088 0.083
Zero impedance
R
0 mΩ/m 0.116 0.100 0.103 0.103
X
0 mΩ/m 0.186 0.216 0.188 0.184
for 5-pole systems (PE) acc.
to DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.219 0.238 0.214 0.211
R
0 mΩ/m 0.087 0.058 0.072 0.050
X
0 mΩ/m 0.105 0.112 0.093 0.091
for 5-pole systems (N) acc. to
DIN EN 60909-0/VDE 0102
Z
0 mΩ/m 0.137 0.126 0.118 0.104
Short-circuit rating
rms value t = 0.1 s Icw kA 130 130 130 130 Rated short-time withstand current
rms value t = 1 s Icw kA 116 116 116 116
Rated impulse withstand current Peak value Ipk kA 286 286 286 286
rms value t = 0.1 s Icw kA 78 78 78 78 Rated short-time withstand current of the
5th conductor rms value t = 1 s Icw kA 70 70 70 70
Conductor material Copper
No. of busbars 8 9 8 9
Conductor cross section L1, L2, L3 A mm2 2044 2044 2464 2464
N A mm
2 1022 2044 1232 2464
PE A mm2 1022 1022 1232 1232
Fire load
Trunking unit without tap-off point KWh/m 10.87 11.99 10.87 11.99
per tap-off point KWh 12.04 12.96 12.04 12.96
Max. fixing distances
for conventional mechanical load m 3 3 2 2
1) Dependent upon degree of protection and laying method
2) Incl. height rises ≤ 1.3 m
Planning with LD
4.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 139
4.3.6 Feeder units
Connection units for non-Siemens distribution boards, recommended cross sections per conductor
Recommended conductor cross-
section
per conductor [mm2]
Compatible LDA/LDC systems
LDA2420 CU 2 x 60 x 10 LDA142. and LDA242.
LDA2620 CU 2 x 60 x 10 LDA162. and LDA262.
LDA3420 CU 100 x 10 LDA342.
LDA3620 CU 100 x 10 LDA362.
LDA5410 CU 2 x 60 x 10 LDA441. and LDA541.
LDA5610 CU 2 x 60 x 10 LDA461. and LDA561.
LDA7410 CU 2 x 100 x 10 LDA641. and LDA741.
LDA7610 CU 2 x 100 x 10 LDA661. and LDA761.
LDA8410 CU 4 x 100 x 10 LDA841.
LDA8610 CU 4 x 100 x 10 LDA861.
LDA5420 CU 2 x 60 x 10 LDA442. and LDA542.
LDA5620 CU 2 x 60 x 10 LDA462. and LDA562.
LDA7420 CU 2 x 100 x 10 LDA642. and LDA742.
LDA7620 CU 2 x 100 x 10 LDA662. and LDA762.
LDA8420 CU 4 x 100 x 10 LDA842.
LDA8620 CU 4 x 100 x 10 LDA862.
LDC2420 CU 100 x 10 LDC241.
LDC2620 CU 100 x 10 LDC262.
LDC3420 CU 100 x 10 LDC342.
LDC3620 CU 100 x 10 LDC362.
LDC6410 CU 2 x 100 x 10 LDC641.
LDC6420 CU 2 x 100 x 10 LDC642.
LDC6610 CU 2 x 100 x 10 LDC661
LDC6620 CU 2 x 100 x 10 LDC662.
LDC7410 CU 4 x 100 x 10 LDC741.
LDC7420 CU 4 x 100 x 10 LDC742.
LDC7610 CU 4 x 100 x 10 LDC761.
LDC7620 CU 4 x 100 x 10 LDC762.
LDC8410 CU 4 x 120 x 10 LDC841.
LDC8420 CU 4 x 120 x 10 LDC842.
LDC8610 CU 4 x 120 x 10 LDC861.
LDC8620 CU 4 x 120 x 10 LDC862.
Planning with LD
4.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
140 Planning Manual, 09/2011, A5E01541101-02
4.3.7 Tap-off units with fuse switch disconnector
Standards and regulations IEC 60439-1 and -2, DIN EN 60439-1 and -2
Resistance to extreme climates Damp heat, constant, acc. to IEC 60068-2-78
Damp heat, cyclic, acc. to IEC 60068-2-30
Degree of protection IP30 standard, IP54 with retrofit kit
Ambient temperature
min./max./24-hour average
°C –5/40/35
Rated insulation voltageUi acc. to
IEC 60439-1, DIN EN 60439-1
V AC 400
Overvoltage category/pollution degree III/3
Rated frequency Hz 50 / 60 1)
Rated operating voltage Ue V AC 400
Typ LD-K-.AK./……. 31ST125 32ST125 3ST250 3ST400 3ST630
Fuse link NH00 2 x NH00 NH1 NH2 NH3
Rated current Ie 125 2 x 125 250 400 630
Max. rated current Imax of the fuse A 125 2 x 125 250 400 630
Max. permissible operating current
Ir max with IP 30
A 125 2 x 125 250 400 630
Max. permissible operating current
Ir max with IP 54
A 125 2 x 125 200 315 500
Switching capacity of the installed
fuse switch disconnector acc to
EN 60947-3
AC-22 B AC-22 B AC-22 B AC-22 B AC-22 B
Short-circuit rating with fuse
protection (Icf) 2)
80 80 80 80 80
Cable entries
- entry from the front without cable
compartment
- cable entry from the side with cable
compartment
Multi-core cable
- Cable sleeves (KT 4) for cable
diameters from 14 to 68 mm
2 2 2 2 3
Single-core cable Aluminium plate, undrilled for cable glands 10 × M50
Bolted connection M8 M8 M10 M10 M10
mm min. 1 x 10 min. 1 x 10 min. 1 x 25 min. 1 x 25 min. 1 x 25 - L1, L2, L3
mm max. 1 x 95 max. 1 x 95 max. 1 x 150 max. 2 x 240 max. 2 x 240
mm min. 1 x 10 min. 1 x 10 min. 1 x 25 min. 1 x 25 min. 1 x 25 - N/PEN/PE
mm max. 1 x 95 max. 1 x 95 max. 1 x 150 max. 2 x 240 max. 2 x 240
Colour of tap-off units RAL 7035, light grey
Tap-off unit material Sheet steel, zinc-plated and painted
Weights kg 33
1) In accordance with EN 60439-1, a reduction of 95% must be taken into account for
currents > 800 A at a frequency of 60 Hz.
2) Fuses: IEC 269-1-2, NF EN 60269-1, NFC 63211, NFC 63210, VDE 0636-1, DIN 43620
Planning with LD
4.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 141
4.3.8 Tap-off units resistant to accidental arcs and with fuse switch disconnector
Standards and regulations IEC 60439-1 and -2, DIN EN 60439-1 and -2
Resistance to extreme climates Damp heat, constant, acc. to IEC 60068-2-78
Damp heat, cyclic, acc. to IEC 60068-2-30
Degree of protection IP54, IP40 (Version KS)
Ambient temperature min./max./24-
hour average
°C –5/40/35
Rated insulation voltageUi acc. to
IEC 60439-1, EN 60439-1
V AC 400
Overvoltage category/
pollution degree
III/3
Rated frequency Hz 50
Rated operating voltage Ue V AC 400
Typ LD-K-.AK./……. FSAM-400 FSAM-630
Rated current Ie A 400 630
Max. rated current Imax of the fuse A 400 630
Max. permissible operating
current Ir max
A 400 1) 540 2)
Switching capacity of the installed fuse
switch disconnector acc to EN 60947-3
AC-22 B AC-22 B
Short-circuit rating with fuse
protection (Icf) 3)
110 110
Bushings
Multi-core cable with add-on cable
compartment for cable entry from the side
2 cable sleeves (KT 4) for cable
diameters from 14 to 68 mm
2 cable sleeves (KT 4) for cable
diameters from 14 to 68 mm
Single-core cable Aluminium plate with 5x M50 cable
glands for cable diameters 21-35mm
Aluminium plate with 5x M50 cable
glands for cable diameters 21-35mm
Connection cross-sections (copper, bolted connection with cable lugs)
- L1, L2, L3 mm 1 x 25 to 1 x 300/2 x 240 1 x 25 to 1 x 300/2 x 240
- N/PEN/PE mm 1 x 25 to 1 x 300/2 x 240 1 x 25 to 1 x 300/2 x 240
Colour of tap-off units RAL 7035, light grey
Tap-off unit material Sheet steel, zinc-plated and painted
Weights kg 69 75
1) For vertical installation of the tap-off units, a reduction by 5% is necessary (reduction factor 0.95)
2) For vertical installation of the tap-off units, a reduction by 12 % is necessary (reduction factor 0.88)
3) Fuses: IEC 269-1-2, NF EN 60269-1, NFC 63211, NFC 63210, VDE 0636-1, DIN 43620
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4.3 Technical data
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142 Planning Manual, 09/2011, A5E01541101-02
4.3.9 Tap-off units with circuit-breaker
Size 1 2 3
Circuit breaker type VL160 VL250 VL400 VL630 VL1250
General data
Standards and regulations IEC 60439-1 and -2, DIN EN 60439-1 and -2
Resistance to extreme climates Damp heat, constant, acc. to IEC 60068-2-78
Damp heat, cyclic, acc. to IEC 60068-2-30
Degree of protection IP54
Ambient temperature
min./max./24-hour average
°C –5/40/35
Overvoltage category/degree of pollution
according to DIN EN 60439-1
III/3
Rated insulation voltage Ui acc. to
IEC 60439-1, EN 60439-1
V AC 400
Rated operating voltage Ue V AC 400
Rated frequency Hz 50/60 2)
Rated current Ie A 100,
125,
160
200,
250
315,
400
630 800,
1000,
1250
Max. permissible
operating current Ir max
100 1),
125 1),
160 1)
200 1),
250 1)
315 1),
400 1)
580 1) 800,
1000,
1250 1)
Switching capacity of the circuit breaker H (70 kA) or L (100 kA) L (100 kA)
Rated conditional short-circuit
current Icc
(values for 690 V on request)
kA 70 or 100 100
Current setting of overload release
AE design A 40 ... 100
64 ... 160
80 ... 200
100 ... 250
126 ... 315
160 ... 400
252 ... 630 400 ... 1000
500 ... 1250
DC, EC design A 80 ... 100
100 ... 125
125 ... 160
160 ... 200
200 ... 250
215 ... 315
320 ... 400
500 ... 630 -
Planning with LD
4.3 Technical data
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Size 1 2 3
Circuit breaker type VL160 VL250 VL400 VL630 VL1250
Connections
Bushings
Multi-core cable
- Cable sleeves 2 × KT 3 2 x KT 4 4 x KT 4
- Cable diameters mm2 14 ... 54 14 ... 68
Single-core cable, undrilled aluminium plate,
for cable glands
8 × M40 12 x M40 24 x M40
- Cable entry from the side Yes Yes Yes
Conductor cross sections (copper)
Connection system Direct connection on the
device
Tags Cable
connection
system
Bolted connection 1 x M8 1 x M8 1 x M8 2 x M10 3) 4 x M12 4)
L1, L2, L3; N, PEN/PE min. mm2 1) 1) 1) 1) 4 x (4) x 70
max. mm
2 1) 1) 1) 1) 4 x (4) x 240
Colour Light grey (RAL 7035)
Material Sheet steel, zinc-plated/painted
Weights kg 37 58 61 107
1) For "suspended, bottom" installation of the tap-off units, a reduction by 10% is
necessary (reduction factor 0.9).
2) In accordance with EN 60439-1, a reduction of 95% must be taken into account for
currents > 800 A at a frequency of 60 Hz.
3) For 2 cable lugs per conductor
4) For 4 cable lugs per conductor
Planning with LD
4.4 Weights
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144 Planning Manual, 09/2011, A5E01541101-02
4.4 Weights
Trunking unit with aluminium conductors
The weights given are metre weights (kg/m) for trunking units without tap-off points in IP34
degree of protection. An additional 0.6 kg/m must be taken into account for IP54 protection.
In the case of trunking units with tap-off points, an additional 7 kg per tap-off point must be
taken into account.
LDA1... LDA2... LDA3... LDA4... LDA5... LDA6... LDA7... LDA8...
LDA.413 - - - 24.1 27.4 27.4 33.7 37.2
LDA.423 18.1 20.0 20.0 25.6 29.4 29.4 36.6 40.6
LDA.613 - - 25.6 29.4 29.4 36.6 40.6
LDA.623 20.1 22.0 22.0 27.1 31.4 31.4 39.5 44.0
Trunking units with copper conductors
The weights given are metre weights (kg/m) for trunking units without tap-off points in IP34
degree of protection. In the case of trunking units with tap-off points, an additional 7 kg per
tap-off point must be taken into account. An additional 0.6 kg/m must be taken into account
for IP54 protection.
LDC2... LDC3... LDC6... LDC7... LDC8...
LDC.413 - - 60.3 82.0 100.2
LDC.423 38.8 51.2 67.0 91.8 112.6
LDC.613 - - 67.0 91.8 112.6
LDC.623 45.5 61.0 73.7 101.6 125.0
Planning with LD
4.5 Dimension drawings
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4.5 Dimension drawings
4.5.1 Trunking units
ದ
Figure 4-14 LDA(C)...-..., LDA(C)...-D-..., LDA(C)...-V-...
ದ
Figure 4-15 LDA(C)...-J-...
LDA(C)1... to LDA(C)3... LDA(C)1...-K-... to LDA(C)3...-K-...
① Coding bracket (busbars with tap-off points only)
LDA(C)4... to LDA(C)8... LDA(C)4...-K-... to LDA(C)8...-K-...
Planning with LD
4.5 Dimension drawings
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146 Planning Manual, 09/2011, A5E01541101-02
4.5.2 Tap-off units with fuse switch disconnector
PD[
LD-K-.AK/.ST...
without cable compartment (cable
entry from the front)
LD-K-.AK/.ST... +LD-KR
with cable compartment (cable
entry from the side)
Tap-off unit mounted Space requirements for mounting
Planning with LD
4.5 Dimension drawings
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4.5.3 Arc fault resistant tap-off units with fuse switch disconnector
Figure 4-16 Tap-off units with fuse switch disconnector: LD-K-.AK./FSAM400(630)
*B1692B;;B
*B1692B;;B
Tap-off unit mounted Space requirements for mounting
Planning with LD
4.5 Dimension drawings
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4.5.4 Tap-off units with circuit-breaker
Sizes up to 250 A and 400 A to 630 A
EF
D
G
LD-K.AK./LSH-...-. LD-K.AK/LSM-...-.
H
J
I
K
Tap-off unit mounted Space requirements for mounting
a b c d e f g h
Size 1 158 317.5 136.5 600 47 424 559
Size 2 187 387.5 136.5 900 47 424 604
Planning with LD
4.5 Dimension drawings
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Sizes 800 A to 1250 A
*B1692B;;B
LD-K.AK./LSH-.....-LS
*B1692B;;B
*B1692B;;B
Tap-off unit mounted Space requirements for mounting
Planning with LD
4.5 Dimension drawings
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150 Planning Manual, 09/2011, A5E01541101-02
4.5.5 Additional equipment
Suspension bracket for horizontal mounting
LD-B1 LD-B2
Fixing brackets for vertical mounting
E
D
E
D
PLQ
F
D
LD-BV
① LD system
② Front
③ Site
Type a
mm
b
mm
LDA1 to LDA3
LDC2 to LDC3
300
300
245
245
LDA4 to LDA8
LDC6 to LDC8
357
357
302
302
SIVACON 8PS - Planning with SIVACON 8PS
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Planning with LX 5
5.1 System description
① Straight trunking units (with or without tap-off points)
② Tap-off units
③ Junction boxes, permanently installed
④ Feeder units
⑤ Connection to Siemens power distribution boards
⑥ Junction units
⑦ Additional equipment for wall/ceiling mounting
Figure 5-1 Overview of LX busbar trunking systems
Planning with LX
5.2 System components
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152 Planning Manual, 09/2011, A5E01541101-02
The LX busbar trunking system is used for both power transmission and distribution. The
system is characterised by high flexibility as it is not tied to a specific position and is
particularly suitable for power distribution in multi-storey buildings. The high degree of
protection IP54 and IP55 1), tap-off units up to 630 A and junction boxes up to 1250 A also
ensure reliable power supply in industrial applications with high power requirements.
1) IP55 on request
5.2 System components
5.2.1 Preliminary remark for specifications
Basic description busbar trunking systems 800 A to 6300 A 1)
Busbar trunking systems shall be supplied and installed as ready-to-use type-tested low-
voltage switchgear assemblies (TTA).
The following descriptions are part of the costing and contracts process. They must be
considered when specifying individual systems and equipment, even if they are not
subsequently referred to in more detail.
The busbar trunking system has to be suitable for power transmission, e.g. between
transformer and low-voltage main distribution board, and power distribution in the form of a
power supply, as well as for horizontal and vertical installation.
The busbar trunking system must comprise standardized system components such as:
● Straight trunking units with and without tap-off points
● Feeder units for incoming transformer, distribution board and cable connection units
● Junction units with elbow, offset elbow, knee, offset knee, Z units and T units
● Tap-off units and junction boxes
All units must be available ex-works in standard lengths and optional lengths. It is not
permitted to set up flexible junction units and junction units using cable connections.
Expansion units and fixed points must be planned as per requirements.
Tap-off units/junction boxes are connected to the tap-off points on the trunking units as
required. It must be possible to select the number and position of tap-off points. 10 tap-off
points must be possible every 3 m. Tap-off units are protected against incorrect mounting.
Depending on the type, the isolation of the tap-off units during removal is assured by a
compulsory sequence of operations or by cautionary instructions.
The bolt-on junction boxes can only be mounted and removed at the tap-off joint blocks, and
they must be secured against installation errors. Zero load during removal of both a plug-in
tap-off unit and a bolt-on junction box must be ensured either through a compulsory
sequence of operations or cautionary instructions.
Planning with LX
5.2 System components
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If required, it must be possible to fit the busbar trunking system with an asbestos-free
fireproof barrier for wall or ceiling mounting which is compliant with fire resistance
class S120.
The enclosure consists of aluminium painted light grey (colour RAL 7035). The cross section
of the trunking units must not exceed the dimensions specified in the technical data. The
junction point between two trunking units must not protrude beyond the enclosure run.
The individual system components must be connected by screwing on a state-of-the-art
bolted joint block.
The busbars must be made of aluminium or copper. The aluminium busbars are coated with
nickel and tin 2), and the copper busbars are coated with tin 2). The busbars are insulated
along their entire length.
The conductor cross sections must not go below the values specified in the technical data.
The insulating material coating is made of Mylar and corresponds to a thermal class of
150 °C (RTE 130 acc. to IEC 60085; 2008).
The fire load must not exceed the value specified in the technical data.
1) On request
2) At the current transition points
Conformity and test certificates
The manufacturer of the busbar system must have in place and be able to prove compliance
with a quality management system in accordance with EN/ISO 9001.
Proof of compliance with the following requirements must be provided for the entire system
in the form of certificates or declarations of conformity:
● Type test acc. to DIN EN 60439-1/VDE 0660-500 and DIN EN 60439-2/VDE 0660-502
● Resistance to extreme climates acc. to IEC 60068-2-78 (constant) and IEC 60068-2-30
(cyclic)
● Fire protection acc. to DIN 4102-9
● Maintenance-free
Reliable proof of special additional characteristics (e.g. sprinkler test) of system components
must be provided.
Planning with LX
5.2 System components
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154 Planning Manual, 09/2011, A5E01541101-02
Technical data for busbar trunking systems
Ambient temperature min./max./24-hour average –5/+40/35°C
Degree of protection IP54, IP55 1)
Torque for joint block 120 ± 10 Nm
Busbar surface treatment Insulated along entire length
Trunking unit material Painted aluminium casing
Colour of trunking units RAL 7035 (light grey)
Rated insulation voltage Ui 1000 VAC
Rated operating voltage Ue up to 690 V AC for power transmission
up to 400 V AC for power distribution 3)
Rated frequency f 50 Hz
Rated current Ie _______2)
Rated short-time withstand current
External conductor Icw (1 s) _______2)
Neutral conductor Icw (1 s) _______2)
5. conductor Icw (1 s) _______2)
Rated peak withstand current Ipk _______2)
Conductor material AL/CU3)
No. of busbars _______2)
Conductor cross section
L1, L2, L3 _______2)
N _______2)
PE (equivalent CU cross section) _______2)
Clean earth _______2)
Fire loads
Trunking unit without tap-off point _______2)
per tap-off point 2.9 kWh
Maximum fixing distances
Horizontal edgewise _______2)
Horizontal flat 2 m
Enclosure dimensions _______2)
1) On request
2) Enter data for selected systems. See technical data for values.
3) Please delete as appropriate.
Planning with LX
5.2 System components
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Planning Manual, 09/2011, A5E01541101-02 155
5.2.2 Type code
The basic components of the LX system are determined using a type code. The type is
specified and selected on the basis of rated current, conductor material and system type or
conductor configuration.
The resulting type code enables the required system to be precisely defined.
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1) PE conductor = enclosure
2) Separate PE conductor routed through additionally insulated busbar (clean earth)
3) An additional busbar doubles the cross section of the neutral conductor (200%)
4) PE conductor = enclosure and additional busbar
5) Only available as a copper system (LXC)
Selection example:
A rated current of 2500 A is calculated for a project. Aluminium conductors shall be used. A
5-pole system has to be used. The cross section of the neutral conductor needs to be equal
to the cross section of the phase conductor.
The following type is obtained:
LXA0751
Planning with LX
5.2 System components
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5.2.3 System sizes and structure
Sizes
Sizes are dependent upon rated current and conductor material. In total, there are six sizes.
Four sizes are set up as single systems and two as double systems.
Single systems comprise one enclosure with between 3 and 6 aluminium or copper bars.
Double systems have between 6 and 12 bars in two enclosures.
The precise number of bars is determined by the required conductor configuration.
Sizes (H x W1)), single system
Height H [mm] System
137 LXA(C)01, LXA(C)02
162 LXC03, LXA(C)04
207 LXA(C)05
+
287 LXA(C)06, LXA(C)07
1) Width is always 145 mm
Sizes (H x W1)), double system
Height H [mm] System
439 LXA(C)08
+
599 LXA(C)09, LXA10
1) Width is always 145 mm
Planning with LX
5.2 System components
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Structure of the busbars
The bars in the LX busbar system are tinned at the current transfer points and enclosed in a
sleeve made of highly resistant insulating material. LXA systems feature aluminium
conductors and LXC systems copper conductors. In addition to tinning, aluminium bars are
also coated with a layer of nickel.
① Aluminium bar (LXA), copper bar (LXC)
② Layer of nickel, layer of tin (LXA), layer of tin (LXC)
③ Insulating material sleeve with high heat resistance
Mounting positions and rated current
The sandwich construction means that the current carrying capacity of the LX busbar system
is not affected by the mounting position. This guarantees high flexibility for positioning the
busbar runs. Current derating is almost never required for busbars in edgewise and flat
positions on horizontal busbar runs or on rising main busbars (vertical busbar runs). You can
find details of the relevant system variables in the technical data.
Horizontal busbar run,
edgewise busbars
Horizontal busbar run, flat
busbars
Vertical busbar run
Planning with LX
5.2 System components
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5.2.4 Conductor configuration
The LX busbar system is available with eight different conductor configurations dependent
upon system type, the size of the N and PE cross sections as well as whether or not an
additional insulated PE conductor (clean earth) has been included.
System Conductor configurations Enclosure
① ② ③ ④ ⑤ ⑥
LX...30 L1 L2 L3 - - - is the PE conductor
LX...41 L1 L2 L3 PEN - - Electrical connection between
enclosure and PEN
LX...51 L1 L2 L3 N - - is the PE conductor
LX...52 L1 L2 L3 N N - is the PE conductor
LX...53 L1 L2 L3 N PE - Electrical connection between
enclosure and PE
LX...61 L1 L2 L3 N Clean
earth
- is the PE conductor
LX...54 L1 L2 L3 N N PE Electrical connection between
enclosure and PE
LX...62 L1 L2 L3 N N Clean
earth
is the PE conductor
Planning with LX
5.2 System components
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5.2.5 Straight trunking units
Straight trunking units for horizontal and vertical installation
/
/;$
/
/;%
/;&
/;'
/;(
Without tap-off points With tap-off points
Length Type
1 m LX.....-1
2 m LX.....-2
Standard lengths
3 m LX.....-3
0.35...0.99 m LX.....-1W*
1.01...1.99 m LX.....-2W*
Optional lengths
2.01...2.99 m LX.....-3W*
3 m LX.....-3-ADO-U+LX-A(B, C, D, E)
2, 4, 6, 8 or 10 tap-off points can be
selected on both sides
LX.....-3-AD+LX-A(B, C, D, E)
1, 2, 3, 4 or 5 tap-off points can be
selected on one side
Standard lengths
with up to 10 tap-off points
2 m LX.....-2-1AD
1 tap-off point
1.50...2.00 m LX.....-1W*-1AD
2.01...2.50 m LX.....-2W*-1AD
Optional lengths
with 1 tap-off point
2.51...3.00 m LX.....-3W*-1AD
W = optional length
* = length in m
AD Tap-off point
Planning with LX
5.2 System components
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160 Planning Manual, 09/2011, A5E01541101-02
5.2.6 Junction units
Junction units for horizontal installation
;
<
<
;
=
Angle LX.....-L-X*/Y* Z unit LX.....Z-X*/Y*/Z*
Length System Type
X = 0.35...1.20 m
Y = 0.35...1.20 m
LX.01 to LX.10 LX.....-L-X*/Y*
X/Y = 0.35...0.70 m
Z = 0.40...0.70 m
LX.01 to LX.10 LX.....-Z-X*/Y*/Z*
Planning with LX
5.2 System components
SIVACON 8PS - Planning with SIVACON 8PS
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Junction units for horizontal and vertical installation
;
<
;
<
=
Knee LX.....-L-X*/Y* Z unit LX.....-Z-X*/Y*/Z*
Length System Type
X/Y = 0.35...1.20 m LX.01 to LX.04
X/Y = 0.50...1.30 m LX.05 to LX.07
X/Y = 0.80...1.60 m LX.08 to LX.10
LX.....-L-X*/Y*
X/Y = 0.35...0.70 m
Z = 0.40...0.70 m
LX.01 to LX.04
X/Y = 0.50...0.85 m
Z = 0.70...1.00 m
LX.05 to LX.07
X/Y = 0.80...1.15 m
Z = 1.33...1.60 m
LX.08 to LX.10
LX.....-Z-X*/Y*/Z*
* Optional length in m
<
;
=
=
;<
Offset knee LX.....-L-X*/Y*/Z* T unit LX.....-T-X*/Y*/Z*
Length System Type
X/Y = 0.35...0.70 m
Z = 0.40...0.70 m
LX.01 to LX.04
X/Y = 0.50...0.85 m
Z = 0.52...0.85 m
LX.05 to LX.07
X/Y = 0.80...1.15 m
Z = 0.84...1.15 m
LX.08 to LX.10
LX.....-L-X*/Y*/Z*
X/Y/Z = 0.35...0.70 m LX.01 to LX.04
X/Y = 0.50...0.85 m LX.05 to LX.07
X/Y = 0.80...1.15 m LX.08 to LX.10
LX.....-T-X*/Y*/Z*
Planning with LX
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5.2.7 Distribution link for Siemens power distribution boards
Connection to power distribution systems as type-tested low-voltage switchgear assembly (TTA)
compliant with DIN EN 60439-1 and DIN EN 60439-2
The distribution board and LX busbar trunking system are connected using an integrated
busbar trunking connection unit for rated currents up to 6300 A 1). This busbar connection
can be made from above or below, thus ensuring a flexible connection. The connection
provided between the power distribution system and the SIVACON 8PV, 8PT, S4 and S8
busbar trunking systems offer a high short-circuit rating that is type-tested to ensure a high
level of safety in power transmission.
1) Ie = 6300 A on request
Figure 5-2 Distribution board link
Planning with LX
5.2 System components
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5.2.8 Connection unit for non-Siemens distribution boards
If you wish to connect the busbar trunking system to a non-Siemens distribution board, you
can establish this connection using an LX connection unit for non-Siemens distribution
boards .... . The connection unit is built into the distribution board and serves as an interface
to the copper connections of the distribution system.
Versions
Depending on system type, a total of eight different conductor configurations are available
for selection. The rated currents up to a maximum of 5000 A correspond to the data in the
Technical data section. In accordance with DIN EN 60439-1 and DIN EN 60439-2, the
temperature limit in distribution systems in the event of heat rise must not be exceeded by
the current heat. The limit temperature of the busbars, which are enclosed in insulating
material, is 135 °C. The required conductor cross sections for the copper connections are
also listed in Chapter Technical data (Page 173).
Installing the connection unit
The connections in the distribution board must be copper-plated by the board manufacturer
or in compliance with that manufacturer's specifications. The board manufacturer must
ensure that the required short-circuit rating is achieved and the permissible temperature limit
of the non-Siemens connection unit is not exceeded.
Figure 5-3 Connection unit for non-Siemens distribution boards
Planning with LX
5.2 System components
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164 Planning Manual, 09/2011, A5E01541101-02
5.2.9 Connection unit for transformers and distribution boards
The wide variety of transformer types reflects the variety of rated currents and the different
phase sequences and clearances.
This type variety requires high flexibility as regards transformer connection in busbar
trunking systems.
The universal connection unit can also be used to connect distribution boards.
For LX busbar trunking systems up to 5000 A, transformer connection units are available
with busbar connection on the side (LX.....-AS.) and on the top (LX.....-AS.-T.).
D
D
Busbar connection on the side Busbar connection on the top
a The total length is calculated from the phase clearances of the connection units to be
planned (approx. 3 x phase clearance + 300 mm)
Type of connection unit Selectable phase clearance Possible phase sequences
LX.....-AS1(-T) 115...400 mm
LX.....-AS3(-T) 405...750 mm
L1, L2, L3, N (PEN)
N (PEN), L3, L2, L1
L3, L2, L1, N (PEN)
N (PEN), L1, L2, L3
LX.....-AS2(-T) 450...750 mm L1, L2, N (PEN), L3
L3, N (PEN), L2, L1
L3, L2, N (PEN), L1
L1, N (PEN), L2, L3
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5.2.10 Incoming cable connection unit
If power needs to be supplied to the busbar trunking system via cables, you should use an
LXA(C)....-KE incoming cable connection unit.
Figure 5-4 Incoming cable connection unit
The incoming cable connection unit is designed for rated currents from 800 to 3200 A.
Enclosure sizes
Depending on the system, three sizes can be selected:
Size 1: LX.01...-KE to LXC02...-KE
Size 2: LX.03...-KE and LXC(A)05...-KE
Size 3: LX.06...-KE and LXC07..-KE
The maximum dimensions are 920 mm x 639 mm x 490 mm (W x H x D).
You can connect single-core or multi-core cables. You can connect cross sections up to
300 mm2 (bolted connection) directly to the incoming cable connection unit bars.
The sheet steel flange plates and the cable sleeves are included in the scope of supply of
the standard product. Single-core cables are supplied with an undrilled aluminium plate for
cable entry.
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5.2.11 Tap-off units and junction boxes
5.2.11.1 General information
Features of the tap-off units and junction boxes
For a comprehensive power distribution structure, tap-off units are available in three sizes
and junction boxes in one size:
● Tap-off units for 80 to 250 A
● Tap-off units for 400 A
● Tap-off units for 630 A
● Junction boxes for 800 to 1250 A
The rated operating voltage (
U
e) is 400 V. Regardless of the mounting position, the
enclosure ensures IP54 degree of protection (IP55 can be achieved with the appropriate
accessories) 1). All units are fitted with either a fuse switch disconnector or circuit breaker
with handle as well as bolts for the cable connection. For conductor systems (conductor
configurations according to type LX...6.) with insulated PE conductor, the tap-off units are
supplied with the addition of a separate PE connection.
1) On request
Cable entry
Cable entry can be from the side or front (exception: for tap-off units up to 250 A from the
front only). Integrated flange with cable sleeves facilitates multi-core cable entry. Aluminium
plates are used for single-core cable entry; these have to be fitted with cable glands locally.
Safety during operation
The tap-off units cannot be opened unless the protective device is switched off manually.
Once this is done, the cable connection area is no longer energized. The part of the contact
device in the front of the tap-off unit is "finger-proof".
Implementing the tap-offs
Tap-offs are required for different amperages depending on the sizeand type of consumers
involved. These are implemented by means of plug-in tap-off units from 80 to 630 A or
junction boxes from 800 to 1250 A.
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5.2.11.2 Tap-off units
Tap-off units from 80 to 630 A
● There are basically two different assembly variants: Fuse switch disconnectors or circuit
breakers
● Power tap-off via tap-off point
● Anti-rotation feature prevents incorrect mounting.
● IP20 touch protection whilst the unit is being connected to the tap-off point
Figure 5-5 Tap-off unit
Note
Hot plugging
In accordance with DIN EN 50110-1 (VDE 0105-1), national regulations must be
observed. Country-specific regulations may prohibit plugging when the busbar run is not
switched off and energized with electrical power.
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5.2.11.3 Tap-off units
Tap-off units from 800 to 1250 A
● Assembly with circuit breaker
● The system must be voltage-free before the junction box can be installed
● Power tap-off via joint block
● Anti-rotation feature prevents incorrect mounting.
Figure 5-6 Tap-off units for permanent installation
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5.2.11.4 Tap-off units with fuse switch disconnector up to 630 A
Rated currents
Plug-in tap-off units in three sizes are available for selection:
● For 125 to 250 A
● For 400 A
● For 630 A
Figure 5-7 Tap-off units with fuse switch disconnector up to 630 A
Short-circuit rating
If you are using fuse links compliant with IEC standard the short-circuit rating Icf of the tap-off
units will be 100 kA (BS standard: 80 kA).
Assembly components
The fuse switch disconnectors are available for fuses compliant with IEC or BS standard and
can be supplied as 3-pole or 4-pole units.
Cable connections
Bolts are used to connect cables with pre-fabricated cable lug. For the small size the
maximum compatible cross section per phase is up to 150 mm2, for the other sizes it is
2 x 120 mm2 up to a maximum of 1 x 240 mm2.
IEC/BS type designation
The type designation for tap-off units with fuse switch disconnector up to 630 A is:
LK-AK./FSH-......
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5.2.11.5 Tap-off units with circuit breaker up to 630 A and junction boxes with
circuit breakers up to 1250 A
Rated currents
Tap-off units in two sizes are available for selection:
● For 125 to 250 A
● For 400 to 630 A
Figure 5-8 Tap-off units from 125 A to 630 A
The junction boxes are supplied in a standard size for 800 A, 1000 A and 1250 A.
Figure 5-9 Junction boxes from 800 A to 1250 A
Short-circuit rating
When using circuit breakers with high switching capacity, the conditional short-circuit rating
Icc of the tap-off units is 65 kA for the small and medium sizes and 85 kA for the large size.
Assembly components
The circuit breakers have a high switching capacity and can be set up with 3 or 4 poles.
Cable connection
Bolts are used to connect cables with pre-fabricated cable lug. For the small size, the
maximum compatible cross section per phase is up to 35 mm2, for the three medium sizes it
is 2 x 70 mm2, 2 x 120 mm2 up to a maximum of 2 x 240 mm2 and for the junction boxes it
is up to 4 x 240 mm2.
Type designation
The type designation for tap-off units with circuit breaker is: LX-AK./LS.-.....
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5.2.12 Additional equipment
End caps
If a busbar busbar run is not to continue to another distribution board, you will need to fit an
end cap.
Figure 5-10 End cap
Joint block
If a busbar run is located between two incoming supplies (e.g. distribution boards,
transformers, generators or incoming cable connection units), an additional joint block will
need to be used.
Figure 5-11 Joint block
Fixing brackets for horizontal installation
Two different fixing brackets are available:
● LX-BH type for horizontal edgewise mounting
● LX-BF type for horizontal flat mounting
Two LX-K type terminal clamps support the busbar trunking system on the fixing bracket.
The terminal clamps and rail are supplied with the fixing bracket.
LX...-BH LX...-BF
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Fixing brackets for vertical installation
Special spring brackets have to be used to install vertical busbar runs.
● LX.....-BV1 type for power transmission
● LX.....-BV1-AK type for power distribution
The LX.....-BV1-AK type carries the additional own weight of at least one tap-off unit per floor
at a floor height of between 3.40 m and 3.90 m.
Figure 5-12 LX...-BV1, LX...-BV1-AK
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5.3 Technical data
5.3.1 LX general data
Standards and regulations IEC 60439-1 and -2, DIN EN 60439-1 and -2
Resistance to extreme climates Damp heat, constant, acc. to IEC 60068-2-78
Damp heat, cyclic, acc. to IEC 60068-2-30
Ambient temperature °C –5/+40/+35 (min./max./24-hour average)
Degree of protection IP54, IP55 on request
Torque for joint block
(re-use)
Nm 120 ± 10
Busbar surface treatment Insulated along the entire length
Aluminium nickel-coated and tinned current transitions
Copper tinned at the current transitions
Current transitions at the tap-off points silver-coated
Trunking unit material Painted aluminium casing
Colour of trunking units RAL 7035 (light grey)
Dimensions See Chapter Dimension drawings (Page 206)
Rated insulation voltage Ui
trunking units acc. to DIN EN 60439-1
for power transmission
for power distribution
V AC
V AC
1000
690
Overvoltage category/
pollution degree
III/3 acc. to EN 60947
Rated operating voltage Ue
for power transmission
for power distribution
V AC
V AC
690
400
Rated frequency Hz 50
Adaptation of the rated current depending on the ambient temperature
$PELHQWWHPSHUDWXUHLQKRXUDYHUDJHr&
5DWHGFXUUHQWOH
Figure 5-13 Rated current and ambient temperature
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5.3.2 Trunking units LXA..30 (aluminium)
System-specific data LXA 0130 0230 0430 0530 0630
Rated current Ie A 0800 1000 1250 1600 2000
Conductor impedance
Resistance R20 mΩ/m 0.117 0.084 0.056 0.036 0.027
Reactance X20 mΩ/m 0.028 0.031 0.024 0.017 0.009
At 50 Hz and + 20 °C busbar
temperature
Impedance Z20 mΩ/m 0.120 0.090 0.061 0.040 0.035
Resistance R1 mΩ/m 0.146 0.106 0.07 0.043 0.034
Reactance X1 mΩ/m 0.028 0.031 0.024 0.017 0.009
At 50 Hz and final heating of
busbars
Impedance Z1 mΩ/m 0.149 0.110 0.074 0.046 0.029
Resistance RF mΩ/m 0.223 0.214 0.180 0.116 0.110
Reactance XF mΩ/m 0.140 0.139 0.114 0.095 0.071
for 5-pole systems (PE)
under fault conditions acc. to
EN 60439-2 Impedance ZF mΩ/m 0.263 0.255 0.213 0.150 0.131
Zero impedance
R
0 mΩ/m 0.434 0.473 0.428 0.275 0.277
X
0 mΩ/m 0.363 0.354 0.293 0.250 0.195
for 5-pole systems (PE) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.566 0.591 0.519 0.372 0.338
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 25 35 50 60 75
Rated peak withstand current Peak value Ipk kA 53 70 110 132 158
Conductor material Aluminium
No. of busbars 3 3 3 3 3
Conductor cross section L1, L2, L3 A mm2 292 386 586 946 1192
Equivalent copper cross
section
PE = enclosure A mm2 948 948 1018 1135 1348
Weights kg/m 9.6 10.6 13.3 17.8 21.8
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System-specific data LXA 0730 0830 0930 1030
Rated current Ie A 2500 1) 3200 4000 2) 4500 3)
Conductor impedance
Resistance R20 mΩ/m 0.023 0.018 0.014 0.011
Reactance X20 mΩ/m 0.011 0.009 0.005 0.012
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.025 0.020 0.015 0.016
Resistance R1 mΩ/m 0.025 0.022 0.017 0.014
Reactance X1 mΩ/m 0.011 0.008 0.005 0.006
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.028 0.024 0.018 0.015
Resistance RF mΩ/m 0.108 0.086 0.062 0.065
Reactance XF mΩ/m 0.077 0.071 0.045 0.044
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.133 0.112 0.077 0.078
Zero impedance
R
0 mΩ/m 0.278 0.223 0.158 0.172
X
0 mΩ/m 0.209 0.195 0.125 0.108
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.348 0.296 0.202 0.203
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 140 150
Rated peak withstand
current
Peak value Ipk kA 194 220 225 255
Conductor material Aluminium
No. of busbars 3 6 6 6
Conductor cross section L1, L2, L3 A mm2 1586 1892 2384 3172
Equivalent copper cross
section
PE = enclosure A mm2 1348 2270 2694 2696
Weights kg/m 26.3 35.5 43.4 52.1
1) Reduction in rated current to 2400 A with horizontal flat mounting position
2) Reduction in rated current to 3800 A with horizontal flat mounting position
3) Reduction in rated current to 4300 A with horizontal flat mounting position
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5.3.3 Trunking units LXA..41 (aluminium)
System-specific data LXA 0141 0241 0441 0541 0641
Rated current Ie A 800 1000 1250 1600 2000
Conductor impedance
Resistance R20 mΩ/m 0.117 0.084 0.056 0.036 0.027
Reactance X20 mΩ/m 0.028 0.031 0.024 0.017 0.009
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.120 0.090 0.061 0.040 0.029
Resistance R1 mΩ/m 0.146 0.106 0.070 0.043 0.034
Reactance X1 mΩ/m 0.028 0.031 0.024 0.017 0.009
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.149 0.110 0.074 0.046 0.035
Resistance RF mΩ/m 0.172 0.135 0.095 0.061 0.047
Reactance XF mΩ/m 0.074 0.083 0.064 0.050 0.032
for 4-pole systems under
fault conditions acc. to
EN 60439-2 Impedance ZF mΩ/m 0.188 0.158 0.114 0.079 0.057
Zero impedance
R
0 mΩ/m 0.283 0.237 0.172 0.110 0.088
X
0 mΩ/m 0.132 0.133 0.101 0.080 0.047
for 4-pole systems acc. to
DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.313 0.272 0.199 0.136 0.100
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 25 35 50 60 75
Rated peak withstand
current
Peak value Ipk kA 53 70 110 132 158
Conductor material Aluminium
No. of busbars 4 4 4 4 4
Conductor cross section L1, L2, L3 A mm2 292 386 586 946 1192
Equivalent copper cross
section
PEN A mm2 1109 1161 1341 1657 2006
Weights kg/m 10.6 12.0 15.2 20.8 25.6
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System-specific data LXA 0741 0841 0941 1041
Rated current Ie A 2500 1) 3200 4000 2) 4500 3)
Conductor impedance
Resistance R20 mΩ/m 0.023 0.018 0.014 0.011
Reactance X20 mΩ/m 0.011 0.008 0.005 0.012
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.026 0.020 0.015 0.016
Resistance R1 mΩ/m 0.025 0.022 0.017 0.014
Reactance X1 mΩ/m 0.011 0.008 0.005 0.006
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.028 0.024 0.018 0.015
Resistance RF mΩ/m 0.041 0.032 0.025 0.020
Reactance XF mΩ/m 0.035 0.032 0.018 0.018
for 4-pole systems under
fault conditions acc. to
EN 60439-2 Impedance ZF mΩ/m 0.054 0.045 0.031 0.027
Zero impedance
R
0 mΩ/m 0.077 0.061 0.047 0.038
X
0 mΩ/m 0.057 0.050 0.026 0.026
for 4-pole systems acc. to
DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.096 0.079 0.053 0.046
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 140 150
Rated peak withstand
current
Peak value Ipk kA 194 220 255 255
Conductor material Aluminium
No. of busbars 4 8 8 8
Conductor cross section L1, L2, L3 A mm2 1586 1892 2384 3172
Equivalent copper cross
section
PEN A mm2 2223 3314 4011 4446
Weights kg/m 31.3 42.0 51.3 63
1) Reduction in rated current to 2400 A with horizontal flat mounting position
2) Reduction in rated current to 3800 A with horizontal flat mounting position
3) Reduction in rated current to 4300 A with horizontal flat mounting position
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5.3.4 Trunking units LXA..51 (aluminium)
System-specific data LXA 0151 0251 0451 0551 0651
Rated current Ie A 800 1000 1250 1600 2000
Conductor impedance
Resistance R20 mΩ/m 0.117 0.084 0.056 0.036 0.027
Reactance X20 mΩ/m 0.028 0.031 0.024 0.017 0.009
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.120 0.090 0.061 0.040 0.029
Resistance R1 mΩ/m 0.146 0.106 0.070 0.043 0.034
Reactance X1 mΩ/m 0.028 0.031 0.024 0.017 0.009
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.149 0.110 0.074 0.046 0.035
Resistance RF mΩ/m 0.223 0.214 0.180 0.116 0.110
Reactance XF mΩ/m 0.140 0.139 0114 0.095 0.071
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.263 0.253 0.213 0.150 0.031
Resistance RF mΩ/m 0.249 0.192 0.133 0.086 0.064
Reactance XF mΩ/m 0.113 0.122 0.095 0.072 0.046
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.273 0.227 0.163 0.112 0.079
Zero impedance
R
0 mΩ/m 0.434 0.473 0.428 0.275 0.277
X
0 mΩ/m 0.363 0.354 0.293 0.250 0.195
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.566 0.591 0.519 0.372 0.338
R
0 mΩ/m 0.484 0.377 0.260 0.167 0.128
X
0 mΩ/m 0.175 0.177 0.134 0.095 0.061
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.515 0.417 0.293 0.192 0.142
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 25 35 50 60 75
Rated impulse withstand
current
Peak value Ipk kA 53 70 110 132 158
Conductor material Aluminium
No. of busbars 4 4 4 4 4
L1, L2, L3 A mm2 292 386 586 946 1192 Conductor cross section
N A mm2 292 386 586 946 1192
Equivalent copper cross
section
PE = enclosure A mm2 948 948 1018 1135 1348
Weights kg/m 10.6 12.0 15.2 20.8 25.6
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System-specific data LXA 0751 0851 0951 1051
Rated current Ie A 2500 1) 3200 4000 2) 4500 3)
Conductor impedance
Resistance R20 mΩ/m 0.023 0.018 0.014 0.011
Reactance X20 mΩ/m 0.011 0.009 0.005 0.012
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.025 0.020 0.015 0.016
Resistance R1 mΩ/m 0.025 0.022 0.017 0.014
Reactance X1 mΩ/m 0.011 0.008 0.005 0.006
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.028 0.024 0.018 0.015
Resistance RF mΩ/m 0.108 0.086 0.062 0.065
Reactance XF mΩ/m 0.077 0.071 0.045 0.044
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.133 0.112 0.077 0.078
Resistance RF mΩ/m 0.055 0.047 0.032 0.028
Reactance XF mΩ/m 0.047 0.043 0.023 0.023
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.072 0.064 0.039 0.036
Zero impedance
R
0 mΩ/m 0.278 0.223 0.158 0.172
X
0 mΩ/m 0.209 0.195 0.125 0.108
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.348 0.296 0.202 0.203
R
0 mΩ/m 0.106 0.095 0.062 0.052
X
0 mΩ/m 0.065 0.060 0.030 0.030
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.125 0.112 0.069 0.060
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 140 150
Rated peak withstand
current
Peak value Ipk kA 194 220 255 255
Conductor material Aluminium
No. of busbars 4 8 8 8
L1, L2, L3 A mm2 1586 1892 2384 3172 Conductor cross section
N A mm2 1586 1892 2384 3172
Equivalent copper cross
section
PE = enclosure A mm2 1348 2270 2694 2696
Weights kg/m 31.3 42.0 51.3 63
1) Reduction in rated current to 2400 A with horizontal flat mounting position
2) Reduction in rated current to 3800 A with horizontal flat mounting position
3) Reduction in rated current to 4300 A with horizontal flat mounting position
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5.3.5 Trunking units LXA..52 (aluminium)
System-specific data LXA 0152 0252 0452 0552 0652
Rated current Ie A 800 1000 1250 1600 2000
Conductor impedance
Resistance R20 mΩ/m 0.117 0.084 0.056 0.036 0.027
Reactance X20 mΩ/m 0.028 0.031 0.024 0.017 0.009
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.120 0.090 0.061 0.040 0.029
Resistance R1 mΩ/m 0.146 0.106 0.070 0.043 0.034
Reactance X1 mΩ/m 0.028 0.031 0.024 0.017 0.009
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.149 0.110 0.074 0.046 0.035
Resistance RF mΩ/m 0.223 0.214 0.180 0.116 0.110
Reactance XF mΩ/m 0.140 0.139 0.114 0.095 0.071
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.263 0.255 0.213 0.150 0.131
Resistance RF mΩ/m 0.187 0.166 0.146 0.125 0.104
Reactance XF mΩ/m 0.133 0.122 0.110 0.099 0.088
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.229 0.206 0.182 0.159 0.136
Zero impedance
R
0 mΩ/m 0.434 0.473 0.428 0.275 0.277
X
0 mΩ/m 0.363 0.354 0.293 0.250 0.195
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.566 0.591 0.519 0.372 0.338
R
0 mΩ/m 0.100 0.092 0.083 0.074 0.066
X
0 mΩ/m 0.195 0.177 0.159 0.141 0.123
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.219 0.199 0.179 0.159 0.139
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 25 35 50 60 75
Rated impulse withstand
current
Peak value Ipk kA 53 70 110 132 158
Conductor material Aluminium
No. of busbars 5 5 5 5 5
L1, L2, L3 A mm2 292 386 586 946 1192 Conductor cross section
N A mm2 584 772 1172 1892 2384
Equivalent copper cross
section
PE = enclosure A mm2 948 948 1018 1135 1348
Weights kg/m 11.6 13.3 17.0 23.8 29.3
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5.3 Technical data
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Planning Manual, 09/2011, A5E01541101-02 181
System-specific data LXA 0752 0852 0952 1052
Rated current Ie A 2500 1) 3200 4000 2) 4500 3)
Conductor impedance
Resistance R20 mΩ/m 0.023 0.018 0.014 0.011
Reactance X20 mΩ/m 0.011 0.009 0.005 0.012
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.025 0.020 0.015 0.016
Resistance R1 mΩ/m 0.025 0.022 0.017 0.014
Reactance X1 mΩ/m 0.011 0.008 0.005 0.006
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.028 0.024 0.018 0.015
Resistance RF mΩ/m 0.108 0.086 0.062 0.065
Reactance XF mΩ/m 0.077 0.071 0.045 0.044
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.133 0.112 0.077 0.078
Resistance RF mΩ/m 0.083 0.062 0.042 0.021
Reactance XF mΩ/m 0.077 0.065 0.054 0.043
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.113 0.089 0.068 0.047
Zero impedance
R
0 mΩ/m 0.278 0.223 0.158 0.172
X
0 mΩ/m 0.209 0.195 0.125 0.108
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.348 0.296 0.202 0.203
R
0 mΩ/m 0.058 0.049 0.041 0.032
X
0 mΩ/m 0.105 0.087 0.068 0.050
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.119 0.099 0.079 0.059
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 140 150
Rated impulse withstand
current
Peak value Ipk kA 194 220 255 255
Conductor material Aluminium
No. of busbars 5 10 10 10
L1, L2, L3 A mm2 1586 1892 2384 3172 Conductor cross section
N A mm2 3172 3784 4768 6344
Equivalent copper cross
section
PE = enclosure A mm2 1348 2270 2694 2696
Weights kg/m 36.3 48.5 59.2 73.2
1) Reduction in rated current to 2400 A with horizontal flat mounting position
2) Reduction in rated current to 3800 A with horizontal flat mounting position
3) Reduction in rated current to 4300 A with horizontal flat mounting position
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
182 Planning Manual, 09/2011, A5E01541101-02
5.3.6 Trunking units LXA..61 (aluminium)
System-specific data LXA 0161 0261 0461 0561 0661
Rated current Ie A 800 1000 1250 1600 2000
Conductor impedance
Resistance R20 mΩ/m 0.117 0.084 0.056 0.036 0.027
Reactance X20 mΩ/m 0.028 0.031 0.024 0.017 0.009
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.120 0.090 0.061 0.040 0.029
Resistance R1 mΩ/m 0.146 0.106 0.070 0.043 0.034
Reactance X1 mΩ/m 0.028 0.031 0.024 0.017 0.009
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.149 0.110 0.074 0.046 0.035
Resistance RF mΩ/m 0.223 0.214 0.180 0.116 0.110
Reactance XF mΩ/m 0.140 0.139 0.114 0.095 0.071
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.263 0.255 0.213 0.150 0.131
Resistance RF mΩ/m 0.249 0.192 0.194 0.166 0.138
Reactance XF mΩ/m 0.133 0.122 0.110 0.099 0.088
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.282 0.227 0.223 0.193 0.163
Zero impedance
R
0 mΩ/m 0.434 0.473 0.428 0.275 0.277
X
0 mΩ/m 0.363 0.354 0.293 0.250 0.195
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.566 0.591 0.519 0.372 0.338
R
0 mΩ/m 0.484 0.377 0.376 0.322 0.268
X
0 mΩ/m 0.175 0.177 0.159 0.141 0.123
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.515 0.417 0.408 0.351 0.294
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 25 35 50 60 75
Rated impulse withstand
current
Peak value Ipk kA 53 70 110 132 158
Conductor material Aluminium
No. of busbars 5 5 5 5 5
L1, L2, L3, (PE) 1) A mm
2 292 386 586 946 1192 Conductor cross section
N A mm2 292 386 586 946 1192
Equivalent copper cross
section
PE = enclosure A mm2 948 948 1018 1135 1348
Weights kg/m 11.6 13.3 17.0 23.8 29.3
1) Insulated PE conductor
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 183
System-specific data LXA 0761 0861 0961 1061
Rated current Ie A 2500 1) 3200 4000 2) 4500 3)
Conductor impedance
Resistance R20 mΩ/m 0.023 0.018 0.014 0.011
Reactance X20 mΩ/m 0.011 0.009 0.005 0.012
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.025 0.020 0.015 0.016
Resistance R1 mΩ/m 0.025 0.022 0.017 0.014
Reactance X1 mΩ/m 0.011 0.008 0.005 0.006
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.028 0.024 0.018 0.012
Resistance RF mΩ/m 0.108 0.086 0.062 0.065
Reactance XF mΩ/m 0.077 0.071 0.045 0.044
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.133 0.112 0.077 0.078
Resistance RF mΩ/m 0.111 0.083 0.056 0.028
Reactance XF mΩ/m 0.077 0.065 0.054 0.023
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.135 0.105 0.077 0.036
Zero impedance
R
0 mΩ/m 0.181 0.158 0.135 0.111
X
0 mΩ/m 0.136 0.119 0.103 0.088
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.226 0.197 0.169 0.141
R
0 mΩ/m 0.214 0.160 0.106 0.052
X
0 mΩ/m 0.105 0.087 0.068 0.050
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.238 0.182 0.125 0.072
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 140 150
Rated impulse withstand
current
Peak value Ipk kA 194 220 255 255
Conductor material Aluminium
No. of busbars 5 10 10 10
L1, L2, L3, (PE) 4) A mm
2 1586 1892 2384 3172 Conductor cross section
N A mm2 1586 1892 2384 3172
Equivalent copper cross
section
PE = enclosure A mm2 1348 2270 2694 2696
Weights kg/m 36.3 48.5 59.2 73.2
1) Reduction in rated current to 2400 A with horizontal flat mounting position
2) Reduction in rated current to 3800 A with horizontal flat mounting position
3) Reduction in rated current to 4300 A with horizontal flat mounting position
4) Insulated PE conductor
Planning with LX
5.3 Technical data
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184 Planning Manual, 09/2011, A5E01541101-02
5.3.7 Trunking units LXA..62 (aluminium)
System-specific data LXA 0162 0262 0462 0562 0662
Rated current Ie A 800 1000 1250 1600 2000
Conductor impedance
Resistance R20 mΩ/m 0.117 0.084 0.056 0.036 0.027
Reactance X20 mΩ/m 0.028 0.031 0.024 0.017 0.009
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.120 0.090 0.061 0.040 0.029
Resistance R1 mΩ/m 0.146 0.106 0.070 0.043 0.034
Reactance X1 mΩ/m 0.028 0.031 0.024 0.017 0.009
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.149 0.110 0.074 0.046 0.035
Resistance RF mΩ/m 0.223 0.214 0.180 0.116 0.110
Reactance XF mΩ/m 0.140 0.139 0.114 0.095 0.071
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.263 0.255 0.213 0.150 0.131
Resistance RF mΩ/m 0.187 0.166 0.146 0.125 0.104
Reactance XF mΩ/m 0.133 0.122 0.110 0.099 0.088
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.229 0.206 0.182 0.159 0.136
Zero impedance
R
0 mΩ/m 0.434 0.473 0.428 0.275 0.277
X
0 mΩ/m 0.363 0.354 0.293 0.250 0.195
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.566 0.591 0.519 0.372 0.338
R
0 mΩ/m 0.100 0.092 0.083 0.074 0.066
X
0 mΩ/m 0.195 0.177 0.159 0.141 0.123
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.219 0.199 0.179 0.159 0.139
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 25 35 50 60 75
Rated peak withstand
current
Peak value Ipk kA 53 70 110 132 158
Conductor material Aluminium
No. of busbars 6 6 6 6 6
L1, L2, L3, (PE) 1) A mm
2 292 386 586 946 1192 Conductor cross section
N A mm2 584 772 1172 1892 2384
Equivalent copper cross
section
PE = enclosure A mm2 948 948 1018 1135 1348
Weights kg/m 12.6 14.7 18.9 26.8 33.1
1) Insulated PE conductor
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 185
System-specific data LXA 0762 0862 0962 1062
Rated current Ie A 2500 1) 3200 4000 2) 4500 3)
Conductor impedance
Resistance R20 mΩ/m 0.023 0.018 0.014 0.011
Reactance X20 mΩ/m 0.011 0.009 0.005 0.012
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.025 0.020 0.015 0.016
Resistance R1 mΩ/m 0.025 0.022 0.017 0.014
Reactance X1 mΩ/m 0.011 0.008 0.005 0.006
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.028 0.024 0.018 0.015
Resistance RF mΩ/m 0.108 0.086 0.062 0.065
Reactance XF mΩ/m 0.077 0.071 0.045 0.044
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.133 0.112 0.077 0.078
Resistance RF mΩ/m 0.083 0.062 0.042 0.021
Reactance XF mΩ/m 0.077 0.065 0.054 0.043
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.113 0.089 0.068 0.047
Zero impedance
R
0 mΩ/m 0.278 0.223 0.158 0.172
X
0 mΩ/m 0.209 0.195 0.125 0.108
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.348 0.296 0.202 0.203
R
0 mΩ/m 0.058 0.049 0.041 0.032
X
0 mΩ/m 0.105 0.087 0.068 0.050
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.119 0.099 0.079 0.059
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 140 150
Rated peak withstand
current
Peak value Ipk kA 194 220 255 255
Conductor material Aluminium
No. of busbars 6 12 12 12
L1, L2, L3, (PE) 4) A mm
2 1586 1892 2384 3172 Conductor cross section
N A mm2 3172 3784 4768 6344
Equivalent copper cross
section
PE = enclosure A mm2 1348 2270 2694 2696
Weights kg/m 41.3 55.0 67.2 83.7
1) Reduction in rated current to 2400 A with horizontal flat mounting position
2) Reduction in rated current to 3800 A with horizontal flat mounting position
3) Reduction in rated current to 4300 A with horizontal flat mounting position
4) Insulated PE conductor
Planning with LX
5.3 Technical data
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186 Planning Manual, 09/2011, A5E01541101-02
5.3.8 Trunking units LXC..30 (copper)
System-specific data LXC 0130 0230 0330 0430 0530
Rated current Ie A 1000 1) 1250 1400 2) 1600 3) 2000 4)
Conductor impedance
Resistance R20 mΩ/m 0.065 0.051 0.044 0.037 0.027
Reactance X20 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.071 0.059 0.048 0.045 0.030
Resistance R1 mΩ/m 0.083 0.065 0.055 0.045 0.035
Reactance X1 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.087 0.072 0.059 0.051 0.037
Resistance RF mΩ/m 0.198 0.188 0.172 0.155 0.142
Reactance XF mΩ/m 0.157 0.139 0.136 0.114 0.113
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.253 0.234 0.219 0.193 0.181
Zero impedance
R
0 mΩ/m 0.465 0.462 0.427 0.392 0.371
X
0 mΩ/m 0.416 0.354 0.367 0.289 0.312
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.616 0.582 0.563 0.488 0.485
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 38 50 57 60 75
Rated impulse withstand
current
Peak value Ipk kA 80 110 125 132 165
Conductor material Copper
No. of busbars 3 3 3 3 3
Conductor cross section L1, L2, L3 A mm2 292 386 442 586 712
Equivalent copper cross
section
PE = enclosure A mm2 948 948 1018 1018 1135
Weights kg/m 9.6 17.8 19.9 24.2 28.6
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 187
System-specific data LXC 0630 0730 0830 0930
Rated current Ie A 2500 3200 5) 4000 5000
Conductor impedance
Resistance R20 mΩ/m 0.017 0.013 0.011 0.009
Reactance X20 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.019 0.017 0.014 0.010
Resistance R1 mΩ/m 0.021 0.016 0.014 0.011
Reactance X1 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.022 0.019 0.016 0.012
Resistance RF mΩ/m 0.128 0.109 0.076 0.059
Reactance XF mΩ/m 0.103 0.087 0.058 0.047
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.164 0.140 0.095 0.075
Zero impedance
R
0 mΩ/m 0.350 0.302 0.205 0.159
X
0 mΩ/m 0.290 0.239 0.158 0.131
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.455 0.385 0.259 0.140
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 150 150
Rated impulse withstand
current
Peak value Ipk kA 189 220 255 255
Conductor material Copper
No. of busbars 3 3 6 6
Conductor cross section L1, L2, L3 A mm2 1192 1586 1892 2384
Equivalent copper cross
section
PE = enclosure A mm2 1348 1348 2270 2696
Weights kg/m 44.0 55.8 70.7 87.8
1) Reduction in rated current to 800 A with horizontal flat mounting position
2) Reduction in rated current to 1380 A with horizontal flat mounting position
3) Reduction in rated current to 1570 A with horizontal flat mounting position
4) Reduction in rated current to 1900 A with horizontal flat mounting position
5) Reduction in rated current to 3100 A with horizontal flat mounting position
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
188 Planning Manual, 09/2011, A5E01541101-02
5.3.9 Trunking units LXC..41 (copper)
System-specific data LXC 0141 0241 0341 0441 0541
Rated current Ie A 1000 1) 1250 1400 2) 1600 3) 2000 4)
Conductor impedance
Resistance R20 mΩ/m 0.065 0.051 0.044 0.037 0.027
Reactance X20 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.071 0.059 0.048 0.045 0.030
Resistance R1 mΩ/m 0.083 0.065 0.055 0.045 0.035
Reactance X1 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.087 0.072 0.059 0.051 0.037
Resistance RF mΩ/m 0.109 0.088 0.077 0.065 0.049
Reactance XF mΩ/m 0.079 0.081 0.081 0.065 0.047
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.134 0.120 0.121 0.092 0.068
Zero impedance
R
0 mΩ/m 0.196 0.162 0.142 0.122 0.093
X
0 mΩ/m 0.121 0.127 0.121 0.095 0.067
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.230 0.206 0.187 0.154 0.114
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 38 50 57 60 75
Rated impulse withstand
current
Peak value Ipk kA 80 110 125 132 165
Conductor material Copper
No. of busbars 4 4 4 4 4
Conductor cross section L1, L2, L3 A mm2 292 386 442 586 712
Equivalent copper cross
section
PEN A mm2 1240 1334 1460 1604 1847
Weights kg/m 17.9 21.6 24.1 29.7 35.3
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 189
System-specific data LXC 0641 0741 0841 0941
Rated current Ie A 2500 3200 5) 4000 5000
Conductor impedance
Resistance R20 mΩ/m 0.017 0.013 0.011 0.009
Reactance X20 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.019 0.017 0.014 0.010
Resistance R1 mΩ/m 0.021 0.016 0.014 0.011
Reactance X1 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.022 0.020 0.016 0.012
Resistance RF mΩ/m 0.032 0.024 0.021 0.018
Reactance XF mΩ/m 0.033 0.037 0.029 0.018
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.046 0.044 0.036 0.025
Zero impedance
R
0 mΩ/m 0.061 0.047 0.041 0.035
X
0 mΩ/m 0.046 0.049 0.043 0.026
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.077 0.068 0.059 0.044
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 150 150
Rated impulse withstand
current
Peak value Ipk kA 189 220 255 255
Conductor material Copper
No. of busbars 4 4 8 8
Conductor cross section L1, L2, L3 A mm2 1192 1586 1892 2384
Equivalent copper cross
section
PEN A mm2 2540 2934 4162 5080
Weights kg/m 55.2 70.6 88.9 110.5
1) Reduction in rated current to 800 A with horizontal flat mounting position
2) Reduction in rated current to 1380 A with horizontal flat mounting position
3) Reduction in rated current to 1570 A with horizontal flat mounting position
4) Reduction in rated current to 1900 A with horizontal flat mounting position
5) Reduction in rated current to 3100 A with horizontal flat mounting position
Planning with LX
5.3 Technical data
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190 Planning Manual, 09/2011, A5E01541101-02
5.3.10 Trunking units LXC..51 (copper)
System-specific data LXC 0151 0251 0351 0451 0551
Rated current Ie A 1000 1) 1250 1400 2) 1600 3) 2000 4)
Conductor impedance
Resistance R20 mΩ/m 0.065 0.051 0.044 0.037 0.027
Reactance X20 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.071 0.059 0.048 0.045 0.030
Resistance R1 mΩ/m 0.083 0.065 0.055 0.045 0.035
Reactance X1 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.087 0.072 0.059 0.051 0.037
Resistance RF mΩ/m 0.198 0.188 0.172 0.155 0.142
Reactance XF mΩ/m 0.157 0.139 0.136 0.114 0.113
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.253 0.234 0.219 0.193 0.181
Resistance RF mΩ/m 0.149 0.127 0.104 0.090 0.065
Reactance XF mΩ/m 0.109 0.118 0.084 0.091 0.062
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.184 0.174 0.134 0.128 0.090
Zero impedance
R
0 mΩ/m 0.465 0.462 0.427 0.392 0.371
X
0 mΩ/m 0.416 0.354 0.367 0.289 0.312
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.624 0.582 0.563 0.488 0.485
R
0 mΩ/m 0.293 0.244 0.204 0.173 0.129
X
0 mΩ/m 0.153 0.161 0.112 0.119 0.080
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.330 0.292 0.233 0.210 0.152
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 38 50 57 60 75
Rated impulse withstand
current
Peak value Ipk kA 80 110 125 132 165
Conductor material Copper
No. of busbars 4 4 4 4 4
L1, L2, L3 A mm2 292 386 442 586 712 Conductor cross section
N A mm2 292 386 442 586 712
Equivalent copper cross
section
PE = enclosure A mm2 948 948 1018 1018 1135
Weights kg/m 17.9 21.6 24.1 29.7 35.3
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 191
System-specific data LXC 0651 0751 0851 0951
Rated current Ie A 2500 3200 5) 4000 5000
Conductor impedance
Resistance R20 mΩ/m 0.017 0.013 0.011 0.009
Reactance X20 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.019 0.017 0.014 0.010
Resistance R1 mΩ/m 0.021 0.016 0.014 0.011
Reactance X1 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.022 0.019 0.016 0.012
Resistance RF mΩ/m 0.128 0.109 0.076 0.059
Reactance XF mΩ/m 0.103 0.087 0.058 0.047
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.164 0.140 0.095 0.075
Resistance RF mΩ/m 0.042 0.039 0.030 0.021
Reactance XF mΩ/m 0.041 0.050 0.036 0.022
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.058 0.064 0.047 0.030
Zero impedance
R
0 mΩ/m 0.350 0.302 0.205 0.159
X
0 mΩ/m 0.290 0.239 0.158 0.131
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.455 0.385 0.259 0.206
R
0 mΩ/m 0.082 0.074 0.061 0.043
X
0 mΩ/m 0.053 0.062 0.049 0.030
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.098 0.096 0.078 0.053
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 150 150
Rated impulse withstand
current
Peak value Ipk kA 189 220 255 255
Conductor material Copper
No. of busbars 4 4 8 8
L1, L2, L3 A mm2 1192 1586 1892 2384 Conductor cross section
N A mm2 1192 1586 1892 2384
Equivalent copper cross
section
PE = enclosure A mm2 1348 1348 2270 2696
Weights kg/m 55.2 70.6 88.9 110.5
1) Reduction in rated current to 800 A with horizontal flat mounting position
2) Reduction in rated current to 1380 A with horizontal flat mounting position
3) Reduction in rated current to 1570 A with horizontal flat mounting position
4) Reduction in rated current to 1900 A with horizontal flat mounting position
5) Reduction in rated current to 3100 A with horizontal flat mounting position
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
192 Planning Manual, 09/2011, A5E01541101-02
5.3.11 Trunking units LXC..52 (copper)
System-specific data LXC 0152 0252 0352 0452 0552
Rated current Ie A 1000 1) 1250 1400 2) 1600 3) 2000 4)
Conductor impedance
Resistance R20 mΩ/m 0.065 0.051 0.044 0.037 0.027
Reactance X20 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.071 0.059 0.048 0.045 0.030
Resistance R1 mΩ/m 0.083 0.065 0.055 0.045 0.035
Reactance X1 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.087 0.072 0.059 0.051 0.037
Resistance RF mΩ/m 0.198 0.188 0.172 0.155 0.142
Reactance XF mΩ/m 0.157 0.139 0.136 0.114 0.113
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.253 0.234 0.219 0.193 0.181
Resistance RF mΩ/m 0.112 0.100 0.088 0.076 0.064
Reactance XF mΩ/m 0.129 0.118 0.107 0.096 0.085
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.170 0.154 0.138 0.122 0.106
Zero impedance
R
0 mΩ/m 0.465 0.462 0.427 0.392 0.371
X
0 mΩ/m 0.416 0.354 0.367 0.289 0.312
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.624 0.582 0.563 0.488 0.485
R
0 mΩ/m 0.220 0.197 0.173 0.149 0.126
X
0 mΩ/m 0.177 0.162 0.146 0.131 0.115
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.282 0.255 0.226 0.198 0.170
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 38 50 57 60 75
Rated impulse withstand
current
Peak value Ipk kA 80 110 125 132 165
Conductor material Copper
No. of busbars 5 5 5 5 5
L1, L2, L3 A mm2 292 386 442 586 712 Conductor cross section
N A mm2 584 772 884 1172 1424
Equivalent copper cross
section
PE = enclosure A mm2 948 948 1018 1018 1135
Weights kg/m 20.7 25.3 28.2 35.2 41.9
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 193
System-specific data LXC 0652 0752 0852 0952
Rated current Ie A 2500 3200 5) 4000 5000
Conductor impedance
Resistance R20 mΩ/m 0.017 0.013 0.011 0.009
Reactance X20 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.019 0.017 0.014 0.010
Resistance R1 mΩ/m 0.021 0.016 0.014 0.011
Reactance X1 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.022 0.019 0.016 0.012
Resistance RF mΩ/m 0.128 0.109 0.076 0.059
Reactance XF mΩ/m 0.103 0.087 0.058 0.047
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.164 0.140 0.095 0.075
Resistance RF mΩ/m 0.052 0.040 0.028 0.016
Reactance XF mΩ/m 0.074 0.063 0.052 0.042
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.090 0.074 0.059 0.044
Zero impedance
R
0 mΩ/m 0.350 0.302 0.205 0.159
X
0 mΩ/m 0.290 0.239 0.158 0.131
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.455 0.385 0.259 0.206
R
0 mΩ/m 0.103 0.079 0.056 0.032
X
0 mΩ/m 0.100 0.084 0.069 0.053
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.143 0.115 0.088 0.061
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 150 150
Rated impulse withstand
current
Peak value Ipk kA 189 220 255 255
Conductor material Copper
No. of busbars 5 5 10 10
L1, L2, L3 A mm2 1192 1586 1892 2384 Conductor cross section
N A mm2 2384 3172 3784 4768
Equivalent copper cross
section
PE = enclosure A mm2 1348 1348 2270 2696
Weights kg/m 66.3 85.5 107.2 133.2
1) Reduction in rated current to 800 A with horizontal flat mounting position
2) Reduction in rated current to 1380 A with horizontal flat mounting position
3) Reduction in rated current to 1570 A with horizontal flat mounting position
4) Reduction in rated current to 1900 A with horizontal flat mounting position
5) Reduction in rated current to 3100 A with horizontal flat mounting position
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
194 Planning Manual, 09/2011, A5E01541101-02
5.3.12 Trunking units LXC..53 (copper)
System-specific data LXC 0153 0253 0353 0453 0553
Rated current Ie A 1000 1) 1250 1400 2) 1600 3) 2000 4)
Conductor impedance
Resistance R20 mΩ/m 0.065 0.051 0.044 0.037 0.027
Reactance X20 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.071 0.059 0.048 0.045 0.030
Resistance R1 mΩ/m 0.083 0.065 0.055 0.045 0.035
Reactance X1 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.087 0.072 0.059 0.051 0.037
Resistance RF mΩ/m 0.159 0.149 0.131 0.115 0.101
Reactance XF mΩ/m 0.149 0.131 0.126 0.106 0.103
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.218 0.198 0.182 0.156 0.144
Resistance RF mΩ/m 0.149 0.133 0.117 0.101 0.085
Reactance XF mΩ/m 0.129 0.118 0.107 0.096 0.085
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.197 0.177 0.158 0.139 0.120
Zero impedance
R
0 mΩ/m 0.348 0.345 0.305 0.270 0.249
X
0 mΩ/m 0.392 0.330 0.337 0.265 0.282
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.524 0.478 0.455 0.379 0.377
R
0 mΩ/m 0.293 0.262 0.230 0.199 0.168
X
0 mΩ/m 0.177 0.162 0.146 0.131 0.115
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.342 0.308 0.272 0.238 0.203
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 38 50 57 60 75
Rated impulse withstand
current
Peak value Ipk kA 80 110 125 132 165
Conductor material Copper
No. of busbars 5 5 5 5 5
L1, L2, L3 A mm2 292 386 442 586 712 Conductor cross section
N A mm2 292 386 442 586 712
PE = enclosure A mm2 948 948 1018 1018 1135 Equivalent copper cross
section + busbar A mm2 292 386 442 586 712
Weights kg/m 20.7 25.3 28.2 35.2 41.9
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 195
System-specific data LXC 0653 0753 0853 0953
Rated current Ie A 2500 3200 5) 4000 5000
Conductor impedance
Resistance R20 mΩ/m 0.017 0.013 0.011 0.009
Reactance X20 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.019 0.017 0.014 0.010
Resistance R1 mΩ/m 0.021 0.016 0.014 0.011
Reactance X1 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.022 0.019 0.016 0.012
Resistance RF mΩ/m 0.087 0.069 0.048 0.029
Reactance XF mΩ/m 0.091 0.075 0.062 0.049
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.126 0.101 0.078 0.057
Resistance RF mΩ/m 0.069 0.053 0.037 0.021
Reactance XF mΩ/m 0.074 0.063 0.052 0.042
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.101 0.082 0.063 0.046
Zero impedance
R
0 mΩ/m 0.228 0.180 0.122 0.070
X
0 mΩ/m 0.254 0.203 0.170 0.137
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.342 0.271 0.209 0.154
R
0 mΩ/m 0.137 0.105 0.074 0.043
X
0 mΩ/m 0.100 0.084 0.069 0.053
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.169 0.134 0.101 0.068
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 150 150
Rated impulse withstand
current
Peak value Ipk kA 189 220 255 255
Conductor material Copper
No. of busbars 5 5 10 10
L1, L2, L3 A mm2 1192 1586 1892 2384 Conductor cross section
N A mm2 1192 1586 1892 2384
PE = enclosure A mm2 1348 1348 2270 2696 Equivalent copper cross
section + busbar A mm2 1192 1586 1892 2384
Weights kg/m 66.3 85.5 107.2 133.2
1) Reduction in rated current to 800 A with horizontal flat mounting position
2) Reduction in rated current to 1380 A with horizontal flat mounting position
3) Reduction in rated current to 1570 A with horizontal flat mounting position
4) Reduction in rated current to 1900 A with horizontal flat mounting position
5) Reduction in rated current to 3100 A with horizontal flat mounting position
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
196 Planning Manual, 09/2011, A5E01541101-02
5.3.13 Trunking units LXC..54 (copper)
System-specific data LXC 0154 0254 0354 0454 0554
Rated current Ie A 1000 1) 1250 1400 2) 1600 3) 2000 4)
Conductor impedance
Resistance R20 mΩ/m 0.065 0.051 0.044 0.037 0.027
Reactance X20 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.071 0.059 0.048 0.045 0.030
Resistance R1 mΩ/m 0.083 0.065 0.055 0.045 0.035
Reactance X1 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.087 0.072 0.059 0.051 0.037
Resistance RF mΩ/m 0.159 0.149 0.131 0.115 0.101
Reactance XF mΩ/m 0.149 0.131 0.126 0.106 0.103
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.218 0.198 0.182 0.156 0.144
Resistance RF mΩ/m 0.112 0.100 0.088 0.076 0.064
Reactance XF mΩ/m 0.129 0.118 0.107 0.096 0.085
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.170 0.154 0.138 0.122 0.106
Zero impedance
R
0 mΩ/m 0.348 0.345 0.305 0.270 0.249
X
0 mΩ/m 0.392 0.330 0.337 0.265 0.282
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.524 0.478 0.455 0.379 0.377
R
0 mΩ/m 0.220 0.197 0.173 0.149 0.126
X
0 mΩ/m 0.177 0.162 0.146 0.131 0.115
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.282 0.255 0.226 0.198 0.170
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 38 50 57 60 75
Rated impulse withstand
current
Peak value Ipk kA 80 110 125 132 165
Conductor material Copper
No. of busbars 6 6 6 6 6
L1, L2, L3 A mm2 292 386 442 586 712 Conductor cross section
N A mm2 584 772 884 1172 1424
PE = enclosure A mm2 948 948 1018 1018 1135 Equivalent copper cross
section + busbar A mm2 292 386 442 586 712
Weights kg/m 23.5 29 32.4 40.8 48.6
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 197
System-specific data LXC 0654 0754 0854 0954
Rated current Ie A 2500 3200 5) 4000 5000
Conductor impedance
Resistance R20 mΩ/m 0.017 0.013 0.011 0.009
Reactance X20 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.019 0.017 0.014 0.010
Resistance R1 mΩ/m 0.021 0.016 0.014 0.011
Reactance X1 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.022 0.019 0.016 0.012
Resistance RF mΩ/m 0.087 0.069 0.048 0.029
Reactance XF mΩ/m 0.091 0.075 0.062 0.049
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.126 0.101 0.078 0.057
Resistance RF mΩ/m 0.052 0.040 0.028 0.016
Reactance XF mΩ/m 0.074 0.063 0.052 0.042
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.090 0.074 0.059 0.044
Zero impedance
R
0 mΩ/m 0.228 0.180 0.122 0.070
X
0 mΩ/m 0.254 0.203 0.170 0.137
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.342 0.271 0.209 0.154
R
0 mΩ/m 0.103 0.079 0.056 0.032
X
0 mΩ/m 0.100 0.084 0.069 0.053
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.143 0.115 0.088 0.061
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 150 150
Rated impulse withstand
current
Peak value Ipk kA 189 220 255 255
Conductor material Copper
No. of busbars 6 6 12 12
L1, L2, L3 A mm2 1192 1586 1892 2384 Conductor cross section
N A mm2 2384 3172 3784 4768
PE = enclosure A mm2 1348 1348 2270 2696 Equivalent copper cross
section + busbar A mm2 1192 1586 1872 2384
Weights kg/m 77.5 100.4 125.4 155.9
1) Reduction in rated current to 800 A with horizontal flat mounting position
2) Reduction in rated current to 1380 A with horizontal flat mounting position
3) Reduction in rated current to 1570 A with horizontal flat mounting position
4) Reduction in rated current to 1900 A with horizontal flat mounting position
5) Reduction in rated current to 3100 A with horizontal flat mounting position
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
198 Planning Manual, 09/2011, A5E01541101-02
5.3.14 Trunking units LXC..61 (copper)
System-specific data LXC 0161 0261 0361 0461 0561
Rated current Ie A 1000 1) 1250 1400 2) 1600 3) 2000 4)
Conductor impedance
Resistance R20 mΩ/m 0.065 0.051 0.044 0.037 0.027
Reactance X20 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.071 0.059 0.048 0.045 0.030
Resistance R1 mΩ/m 0.083 0.065 0.055 0.045 0.035
Reactance X1 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.087 0.072 0.059 0.051 0.037
Resistance RF mΩ/m 0.198 0.188 0.172 0.155 0.142
Reactance XF mΩ/m 0.157 0.139 0.136 0.114 0.113
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.253 0.234 0.219 0.193 0.181
Resistance RF mΩ/m 0.149 0.127 0.117 0.101 0.085
Reactance XF mΩ/m 0.129 0.118 0.107 0.096 0.085
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.197 0.174 0.158 0.139 0.120
Zero impedance
R
0 mΩ/m 0.465 0.462 0.427 0.392 0.371
X
0 mΩ/m 0.416 0.354 0.367 0.289 0.312
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.624 0.582 0.563 0.488 0.485
R
0 mΩ/m 0.293 0.262 0.230 0.199 0.168
X
0 mΩ/m 0.177 0.162 0.146 0.131 0.115
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.342 0.308 0.272 0.238 0.203
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 38 50 57 60 75
Rated impulse withstand
current
Peak value Ipk kA 80 110 125 132 165
Conductor material Copper
No. of busbars 5 5 5 5 5
L1, L2, L3, (PE) 6) A mm
2 292 386 442 586 712 Conductor cross section
N A mm2 292 386 442 586 712
Equivalent copper cross
section
PE = enclosure A mm2 948 948 1018 1018 1135
Weights kg/m 20.7 25.3 28.2 35.2 41.9
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 199
System-specific data LXC 0661 0761 0861 0961
Rated current Ie A 2500 3200 5) 4000 5000
Conductor impedance
Resistance R20 mΩ/m 0.017 0.013 0.011 0.009
Reactance X20 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.019 0.017 0.014 0.010
Resistance R1 mΩ/m 0.021 0.016 0.014 0.011
Reactance X1 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.022 0.019 0.016 0.012
Resistance RF mΩ/m 0.128 0.109 0.076 0.059
Reactance XF mΩ/m 0.103 0.087 0.058 0.047
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.164 0.140 0.095 0.075
Resistance RF mΩ/m 0.069 0.053 0.037 0.021
Reactance XF mΩ/m 0.074 0.063 0.052 0.042
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.101 0.082 0.063 0.046
Zero impedance
R
0 mΩ/m 0.350 0.302 0.205 0.159
X
0 mΩ/m 0.290 0.239 0.158 0.131
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.455 0.385 0.259 0.206
R
0 mΩ/m 0.137 0.105 0.074 0.043
X
0 mΩ/m 0.100 0.084 0.069 0.053
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.169 0.134 0.101 0.068
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 150 150
Rated impulse withstand
current
Peak value Ipk kA 189 220 255 255
Conductor material Copper
No. of busbars 5 5 10 10
L1, L2, L3, (PE) 6) A mm
2 1192 1586 1892 2384 Conductor cross section
N A mm2 1192 1586 1892 2384
Equivalent copper cross
section
PE = enclosure A mm2 1348 1348 2270 2696
Weights kg/m 66.3 85.5 107.2 133.2
1) Reduction in rated current to 800 A with horizontal flat mounting position
2) Reduction in rated current to 1380 A with horizontal flat mounting position
3) Reduction in rated current to 1570 A with horizontal flat mounting position
4) Reduction in rated current to 1900 A with horizontal flat mounting position
5) Reduction in rated current to 3100 A with horizontal flat mounting position
6) Insulated PE conductor
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
200 Planning Manual, 09/2011, A5E01541101-02
5.3.15 Trunking units LXC..62 (copper)
System-specific data LXC 0162 0262 0362 0462 0562
Rated current Ie A 1000 1) 1250 1400 2) 1600 3) 2000 4)
Conductor impedance
Resistance R20 mΩ/m 0.065 0.051 0.044 0.037 0.027
Reactance X20 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.071 0.059 0.048 0.045 0.030
Resistance R1 mΩ/m 0.083 0.065 0.055 0.045 0.035
Reactance X1 mΩ/m 0.027 0.031 0.020 0.026 0.013
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.087 0.072 0.059 0.051 0.037
Resistance RF mΩ/m 0.198 0.188 0.172 0.155 0.142
Reactance XF mΩ/m 0.157 0.139 0.136 0.114 0.113
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.253 0.234 0.219 0.193 0.181
Resistance RF mΩ/m 0.112 0.100 0.088 0.076 0.064
Reactance XF mΩ/m 0.129 0.118 0.107 0.096 0.085
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.170 0.154 0.138 0.122 0.106
Zero impedance
R
0 mΩ/m 0.465 0.462 0.427 0.392 0.371
X
0 mΩ/m 0.416 0.354 0.367 0.289 0.312
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.624 0.582 0.563 0.488 0.485
R
0 mΩ/m 0.220 0.197 0.173 0.149 0.126
X
0 mΩ/m 0.177 0.162 0.146 0.131 0.115
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.282 0.255 0.226 0.198 0.170
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 38 50 57 60 75
Rated impulse withstand
current
Peak value Ipk kA 80 110 125 132 165
Conductor material Copper
No. of busbars 6 6 6 6 6
L1, L2, L3, (PE) 6) A mm
2 292 386 442 586 712 Conductor cross section
N A mm2 584 772 884 1172 1424
Equivalent copper cross
section
PE = enclosure A mm2 948 948 1018 1018 1135
Weights kg/m 23.5 29 32.4 40.8 48.6
Planning with LX
5.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
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System-specific data LXC 0662 0762 0862 0962
Rated current Ie A 2500 3200 5) 4000 5000
Conductor impedance
Resistance R20 mΩ/m 0.017 0.013 0.011 0.009
Reactance X20 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and + 20 °C
busbar temperature
Impedance Z20 mΩ/m 0.019 0.017 0.014 0.010
Resistance R1 mΩ/m 0.021 0.016 0.014 0.011
Reactance X1 mΩ/m 0.009 0.011 0.008 0.005
At 50 Hz and final heating
of busbars
Impedance Z1 mΩ/m 0.022 0.019 0.016 0.012
Resistance RF mΩ/m 0.128 0.109 0.076 0.059
Reactance XF mΩ/m 0.103 0.087 0.058 0.047
for 5-pole systems (PE)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.164 0.140 0.095 0.075
Resistance RF mΩ/m 0.052 0.040 0.028 0.016
Reactance XF mΩ/m 0.074 0.063 0.052 0.042
for 5-pole systems (N)
under fault conditions acc.
to EN 60439-2 Impedance ZF mΩ/m 0.090 0.074 0.059 0.044
Zero impedance
R
0 mΩ/m 0.350 0.302 0.205 0.159
X
0 mΩ/m 0.290 0.239 0.158 0.131
for 5-pole systems (PE)
acc. to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.455 0.385 0.259 0.206
R
0 mΩ/m 0.103 0.079 0.056 0.032
X
0 mΩ/m 0.100 0.084 0.069 0.053
for 5-pole systems (N) acc.
to DIN EN 60909-0/
VDE 0102 Z
0 mΩ/m 0.143 0.115 0.088 0.061
Short-circuit rating
Rated short-time withstand
current
rms value t = 1 s Icw kA 86 100 150 150
Rated impulse withstand
current
Peak value Ipk kA 189 220 255 255
Conductor material Copper
No. of busbars 6 6 12 12
L1, L2, L3, (PE) 6) A mm
2 1192 1586 1892 2384 Conductor cross section
N A mm2 2384 3172 3784 4768
Equivalent copper cross
section
PE = enclosure A mm2 1348 1348 2270 2696
Weights kg/m 77.5 100.4 125.4 155.9
1) Reduction in rated current to 800 A with horizontal flat mounting position
2) Reduction in rated current to 1380 A with horizontal flat mounting position
3) Reduction in rated current to 1570 A with horizontal flat mounting position
4) Reduction in rated current to 1900 A with horizontal flat mounting position
5) Reduction in rated current to 3100 A with horizontal flat mounting position
6) Insulated PE conductor
Planning with LX
5.3 Technical data
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5.3.16 Fire load for trunking units without tap-off points
System Fire load [kWh/m]
LXA(C)0141
LXA(C)0151
1.95
LXA(C)0241
LXA(C)0251
2.04
LXC0341
LXC0351
2.42
LXA(C)0441
LXA(C)0451
2.53
LXA0541
LXA0551
3.54
LXC0541
LXC0551
3.48
LXA(C)0641
LXA(C)0651
5.33
LXA(C)0741
LXA(C)0751
5.42
LXA(C)0841
LXA(C)0851
7.28
LXA(C)0941
LXA(C)0951
10.88
LXA1041
LXA1051
11.07
For trunking units with tap-off points, regardless of system size, a fire load of 2.9 kWh must
be taken into account for each tap-off point.
Fire load values for LX...30, LX...52, LX...53, LX...54, LX...61, LX...62 are only available on
request.
5.3.17 Fixing distances
Fixing distances [m] for conventional mechanical load with horizontal installation
System Edgewise busbars Flat busbars
LXA(C)01.. 2 2
LXA(C)02.. 2 2
LXC03.. 2 2
LXA(C)04.. 2 2
LXA(C)05.. 3 2
LXA(C)06.. 3 2
LXA(C)07.. 3 2
LXA(C)08.. 3 2
LXA(C)09.. 3 2
LXA10.. 3 2
Planning with LX
5.3 Technical data
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5.3.18 Connection units for non-Siemens distribution boards
The required conductor cross sections for bare copper bars for connection to connection
units for non-Siemens distribution boards.
Number ... Cu bar
width x thickness
System Ie [A]
1 2 3 4
Compatible LXA/LXC system
LXC(A)01.. 1000 (800) 1) 60 x 10 30 x 10 20 x 10 - LXA01.. and LXC01..
LXC(A)02.. 1250 (1000) 1) 80 x 10 40 x 10 30 x 10 - LXA02.. and LXC02..
LXC03.. 1400 100 x 10 50 x 10 30 x 10 - LXC03..
LXC(A)04.. 1600 (1250) 1) 100 x 10 60 x 10 30 x 10 - LXA04.. and LXC04..
LXA05.. 1600 100 x 10 60 x 10 30 x 10 - LXA05..
LXC05.. 2000 160 x 10 80 x 10 50 x 10 - LXC05..
LXC(A)06.. 2500 (2000) 1) 200 x 10 100 x 10 60 x 10 50 x 10 LXC06.. and LXA06..
LXC(A)07.. 3200 (2500) 1) - 160 x 10 100 x 10 80 x 10 LXC07.. and LXA07..
LXC(A)08.. 4000 (3200) 1) - 200 x 10 120 x 10 100 x 10 2) LXC08.. and LXA08..
LXC(A)09.. 5000 (4000) 1) - - 200 x 10 160 x 10 LXC09.. and LXA09..
LXA10.. 4500 - - 160 x 10 120 x 10 LXA10..
1) Connection to LXA systems
2) In accordance with DIN 43671, Table 1, the maximum continuous current for this copper
cross section is 3980 A.
Planning with LX
5.3 Technical data
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5.3.19 Tap-off units
Standards and regulations DIN EN 60439-1/VDE 0660-500
DIN EN 60439-2/VDE 0660-502
Resistance to extreme climates Damp heat, constant, acc. to IEC 60068-2-78
Damp heat, cyclic, acc. to IEC 60068-2-30
Ambient temperature °C –5/+40/+35 (min./max./24-hour average)
Degree of protection IP54, IP55 on request
Trunking unit material Sheet steel, painted
Colour of tap-off units RAL 7035 (light grey)
Dimensions See also Chapter Dimension drawings (Page 206)
Rated insulation voltage Ui V AC 690
Overvoltage category/
pollution degree
III/3 acc. to DIN EN 60947-1/VDE 0660-100
Rated operating voltage Ue V AC 400
Rated frequency Hz 50
Size 1 Size 2 Size 3 Size 4
Tap-off units with circuit breaker
Rated current Ie A 50; 63; 80; 100;
125; 160; 200;
250
315 400 630 — 800 2);
1000 2);
1250
Max. permissible operating current Ir max 1) A in accordance
with Ie
315 380 520 in accordance
with Ie
Conditional short-circuit rating Icc kA 65 65 — 100
Connectable cross sections (CU)
L1, L2, L3 mm2 1 x 50 ... 150
2 x 25 ... 70
1 x 70 ... 240
2 x 70 ... 120
— 1 x 70 ... 240
4 x 70 ... 240
N, PE, ISO-PE mm2 1 x 50 ... 150
2 x 25 ... 70
1 x 70 ... 240
2 x 70 ... 120
— 1 x 70 ... 240
4 x 70 ... 240
Bolted connection M8 315 A: M8
400 A: M10
630 A: M12
— M12
Planning with LX
5.3 Technical data
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Size 1 Size 2 Size 3 Size 4
Cable entry
front face Yes Yes — No
side No Yes — Yes
Multi-core cable 4)
Cable grommets M63 2 x KT4 — 4 x KT4
Cable diameter (mm) 18 ... 47
(for 50 A ... 200 A)
14 ... 68
(for 250 A)
14 ... 68 — 14 ... 68
Single-core cable 3), aluminium plate,
undrilled
12 x M40 (for
160 A, 200 A,
250 A only)
12 x M40 — 12 x M40
Weights kg 9.5 (to 125 A)
19 (to 250 A)
37.2 (to 400 A)
44 (to 630 A)
— 155 (3-pole
circuit breaker)
163 (4-pole
circuit breaker)
Tap-off units with fuse switch disconnector
Rated current Ie A 125 250 400 630 —
Max. rated current Imax of the fuse A 125 250 400 630 —
Max. permissible operating current Ir max 100 200 320 500 —
Rated short-circuit current with fuse
protection
kA 100 (80) 3) 100 (80) 3) — —
Connectable cross sections (CU)
L1, L2, L3 mm2 1 x 50...150
2 x 50...120
1 x 95...240
2 x 95...120
1 x 95...240
2 x 95...120
—
N, PE, ISO-PE mm2 1 x 50...150
2 x 50...120
1 x 95...240
2 x 95...120
1 x 95...240
2 x 95...120
—
Bolted connection M8 M10 M12 —
Cable entry
front face Yes Yes Yes —
side No Yes Yes —
Multi-core cable
Cable grommets M63 2 x KT4 2 x KT4 —
Cable diameter (mm) 28...48 16...68 14...68 —
Single-core cable 4), aluminium plate,
undrilled
12 x M40 12 x M40 12 x M40 —
Weights kg 9,6 (to 125 A)
20.5 (to 250 A)
32.9 50 —
1) For "suspended, below" installation of the tap-off units, a reduction by 10% is necessary
(reduction factor 0.9).
2) For "suspended, below" installation of the tap-off units, no reduction is necessary
3) Values in brackets apply when using fuses in accordance with BS standard
4) Cable glands with strain relief are required (not included in the scope of delivery).
Planning with LX
5.4 Dimension drawings
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5.4 Dimension drawings
5.4.1 Trunking units
D
O
Figure 5-14 Single systems LXA(C)01 to 07
O
D
Figure 5-15 Double systems LXA(C)08 to 10
System l a
LXA(C)01 350 ... 3000 137
LXA(C)02 350 ... 3000 137
LXC03 350 ... 3000 162
LXA(C)04 350 ... 3000 162
LXA(C)05 350 ... 3000 207
LXA(C)06 350 ... 3000 287
LXA(C)07 350 ... 3000 287
LXA(C)08 350 ... 3000 439
LXA(C)09 350 ... 3000 599
LXA10 350 ... 3000 599
Planning with LX
5.4 Dimension drawings
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5.4.2 Tap-off units
5.4.2.1 Tap-off units with circuit-breaker
Size 1 (50 A to 250 A)
With circuit-breaker 3VL
Size 2 (315 A to 630 A)
With circuit-breaker 3VL
Planning with LX
5.4 Dimension drawings
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Size 4 (800 A to 1250 A)
Planning with LX
5.4 Dimension drawings
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5.4.2.2 Tap-off units with fuse switch disconnector
Size 1 (125 A and 250 A)
Size 2 or 3 (400 A and 630 A)
D
E
F
Type a b c
LX-AK5(6)/FSH-400IEC(BS)-3(4)S 192 328 415
LX-AK5(6)FSH-630IEC(BS)-3(4)S 282 418 590
Planning with LX
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5.4.3 Additional equipment
Fixing brackets for horizontal busbar run
LX-K terminal clamps are included in the scope of supply of the fixing brackets.
D
E
Type a b
LX-BH(F) 285 172
LX01..-BH(F) 285 172
LX02..-BH(F) 285 172
LX03..-BH(F) 307 194
LX04..-BH(F) 307 194
LX05..-BH(F) 352 239
LX06..-BH(F) 432 319
LX07..-BH(F) 432 319
LX08..-BH(F) 584 471
LX09..-BH(F) 744 631
LX10..-BH(F) 744 631
Clamp for fixing onto bracket/rack
Planning with LX
5.4 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
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Fixing bracket for vertical busbar run
$%
Planning with LX
5.4 Dimension drawings
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Planning with LR 6
6.1 System description
NSV0_01471
6
7
8
5
5
3
2
2
2
4
1
① Straight trunking units
② Feeder units
③ Junction units
④ Tap-off units
⑤ Accessories
⑥ Adapter for the LX system
⑦ Expansion compensation
⑧ Encapsulated joint unit
Figure 6-1 LR system structure
Planning with LR
6.1 System description
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Thanks to its cast epoxy enclosure with high IP68 degree of protection and high short-circuit
rating, the LR system can provide an assurance of reliable power transmission even under
the harshest ambient conditions. It is entirely resistant to environmental factors such as air
humidity and corrosive or salty atmospheres.
The compact system is suitable for flat, edgewise, vertical or horizontal installation as per
requirements in applications from 400 A to 6150 A. Bracket pieces, connectors and T pieces
to create junction units facilitate optimisation in line with structural conditions within the most
compact of dimensions. The LR system is even ideal for use outdoors.
Planning with LR
6.2 System components
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6.2 System components
6.2.1 Preliminary remark for specifications
Basic description busbar trunking systems 400 A to 6150 A
Busbar trunking systems shall be supplied and installed as ready-to-use type-tested low-
voltage switchgear assemblies (TTA).
The following descriptions are part of the costing and contracts process. They must be
considered when specifying individual systems and equipment, even if they are not
subsequently referred to in more detail.
The busbar trunking system has to be suitable for power transmission, e.g. between
transformer and low-voltage main distribution board, and power distribution in the form of a
power supply, as well as for horizontal and vertical installation.
The busbar trunking system must comprise listed system components such as:
● Straight trunking units
● Feeder units for incoming transformer, distribution board and cable connection units
● Junction units with elbow, offset elbow, knee, offset knee, Z units and T units
● Joint units
● Accessories
The busbar trunking system must comprise standardised factory-built system components. It
is not permitted to set up flexible junction units and junction units using cable connections.
Expansion units and fixed points must be planned as per requirements.
Standard components are connected to the tap points on the trunking units as required. It
must be possible to select the number and position of tap-off points. The bolt-on tap-off units
can only be installed and removed when voltage-free.
If required, it must be possible to fit the busbar trunking system with an asbestos-free
fireproof barrier for wall or ceiling mounting which is compliant with the fire resistance class
S60, S90 or S120.
The enclosure is of epoxy resin and is corrosion-free. The cross section of the trunking units
must not exceed the dimensions specified in the technical data.
The individual system components must be connected by screwing on a state-of-the-art
bolted joint block.
The connection must be encapsulated in cast resin and closed following installation of the
bolted joint block.
The busbars must be made of copper-coated aluminium or copper. The outer dimensions of
the enclosure/casing must not exceed the values specified in the technical data.
The fire load must not exceed the value specified in the technical data.
Planning with LR
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Conformity and test certificates
The manufacturer of the busbar system must have in place and be able to prove compliance
with a quality management system in accordance with EN ISO 9001.
Proof of compliance with the following requirements must be provided for the entire system
in the form of certificates or declarations of conformity:
● Type test acc. to DIN EN 60439-1/VDE 0660-500 and DIN EN 60439-2/VDE 0660-502
● Resistance to extreme climates acc. to IEC 60068-2-78 (constant) and IEC 60068-2-30
(cyclic)
● Fire protection acc. to DIN 4102-9
Reliable proof of special additional characteristics (e.g. functional endurance) of system
components must be provided.
Planning with LR
6.2 System components
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Technical data for busbar trunking systems
Ambient temperature min./max./24-hour average –5/+40/35°C
Degree of protection IP68
Torque for joint block LR.01 – LR03: 40 Nm 1)
LR.04 – LR29: 84 Nm 1)
Trunking unit material Epoxy resin
Colour of trunking units Similar to RAL 7030 (stone grey)
Rated insulation voltage Ui 1000 VAC
Rated operating voltage Ue 1000 VAC
Rated frequency f 50...60 Hz
Rated current Ie _______2)
Rated short-time withstand current
External conductor Icw (1 s) _______2)
Neutral conductor Icw (1 s) _______2)
5. conductor Icw (1 s) _______2)
Rated peak withstand current Ipk _______2)
Conductor material AL/CU1)
No. of busbars _______2)
Conductor cross section
L1, L2, L3 _______2)
N _______2)
PE _______2)
Fire loads
Trunking unit _______2)
Maximum fixing distances
Horizontal edgewise _______2)
Horizontal flat _______2)
Vertical _______2)
Enclosure dimensions _______2)
1) Please delete as appropriate.
2) Enter data for selected systems. For values see Technical data (Page 232))
Planning with LR
6.2 System components
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218 Planning Manual, 09/2011, A5E01541101-02
6.2.2 Type code
The components of the LR system are determined using a type code. The type is specified
and selected on the basis of rated current, conductor material and system type or conductor
configuration.
The resulting type code enables the product to be ordered to be precisely defined.
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Figure 6-2 Type codes LRA/LRC
Selection example:
A rated current of 2500 A is calculated for a project. A 5-pole system has to be used.
This results in type LRC0851-0.
Planning with LR
6.2 System components
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6.2.3 System sizes and structure
Sizes
The sizes are dependent upon the rated current rating. In total, there are nine sizes. Six
sizes are set up as single systems and three as double systems.
Single systems comprise one enclosure with 4 to 5 aluminium busbars for the LRA system
and 4 to 5 copper bars for the LRC system. Double systems have between 8 and 10 bars in
two enclosures.
The precise number of bars is determined by the required conductor configuration.
Structure of the busbars
The busbars of the LRA system are surface-treated (copper-coated), and the busars of the
LRC system are not.
① Aluminium bar
② Copper coating
Figure 6-3 LRA busbar system
① Copper bar
Figure 6-4 LRC busbar system
Planning with LR
6.2 System components
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220 Planning Manual, 09/2011, A5E01541101-02
Mounting positions and rated current
The potted construction means that the current-effected heat rise of the LR busbar system is
not affected by the mounting position. This guarantees high flexibility for positioning the
busbar runs. Current derating is not required for busbars in edgewise and flat positions on
horizontal busbar runs or on rising main busbars (vertical busbar runs).
Horizontal busbar run,
edgewise busbars
Horizontal busbar run, flat
busbars
Vertical busbar run
Planning with LR
6.2 System components
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6.2.4 Conductor configuration and sizes
The LRA/LRC busbar system is available with two different conductor configurations
dependent upon system type and the size of the N and PE cross sections.
IE [A] 4-conductor system 5-conductor system
LRA LRC System A B System A B
400 630 LR.0141 LR.0151
630 800 LR.0241 LR.0251
800 1000 LR.0341
90 90
LR.0351
90 90
1000 1350 LR.0441 120 LR.0451 120
1200 1600 LR.0541 LR.0551
1400 1700 LR.0641
150
LR.0651
150
1600 2000 LR.0741 190 LR.0751 192
2000 2500 LR.0841 220 LR.0851 220
2500 3200
$
%
LR.0941
100
240
$
%
LR.0951
120
240
3200 4000 LR.2741 380 LR.2751 380
4000 5000 LR.2841 440 LR.2851 440
4600 6150
$
%
LR.2941
100
480
$
%
LR.2951
120
480
Planning with LR
6.2 System components
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6.2.5 Straight trunking units
Straight trunking units for horizontal and vertical installation without tap points and joint unit
;
Configurable lengths X from 0.30 m to 3.00 m in 0.01 m steps available
Straight trunking units for tap-off units on request
Straight trunking units to adapt to LX systems for indoor applications
;
Figure 6-5 Adapter element (X = 0.6 m)
Straight trunking units to adapt to LD systems for indoor applications
;
Figure 6-6 Adapter element (X = 1.0 m)
Planning with LR
6.2 System components
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6.2.6 Junction units
Junction units for horizontal installation
;<
;
=
<
Elbow LR....-E(-1.0/-1.5) Z unit LR....-ZE
Length System Type
X = 0.30...1.20 m
Y = 0.30...1.20 m
LR.01 to LR.29 LR....-E(-1.0/-1.5)
X/Y = 0.30 m
Z = 0.01...0.60 m
LR.01 to LR.29 Z unit LR....-ZE
Planning with LR
6.2 System components
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Junction units for horizontal and vertical installation
;
<
;
=
<
Knee LR....-K(-1.0/-1.5) Z unit LR....-ZK
Length System Type
X/Y = 0.35...1.15 m LR.01 to LR.09
X/Y = 0.50...1.00 m LR.27 to LR.29
LR....-K(-1.0/-1.5)
X/Y = 0.35 m
Z = 0.01...0.70 m
LR.01 to LR.09
X/Y = 0.50 m
Z = 0.01...1.00 m
LR.27 to LR.29
LR....-ZK
;
<
=
;
<
=
Offset knee LR...-XL T unit LR....-TV(-2.0)
Length System Type
X/Y = 0.35 m
Z = 0.09...0.70 m
LR.01 to LR.09
X/Y = 0.50 m
Z = 0.25...1.00 m
LR.27 to LR.29
LR....-XL
X/Y = 0.35...1.15 m
Z = 0.35...0.50 m
LR.01 to LR.09
X/Y = 0.50...1.00 m
Z = 0.50 m
LR.27 to LR.29
LR....-TV(-2.0)
Planning with LR
6.2 System components
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6.2.7 Distribution board connection for Siemens power distribution boards
For the LR system, an LX connection unit in conjunction with an LR adapter element can be
used to achieve a type-tested link to Siemens power distribution boards.
6.2.8 Connection unit for non-Siemens distribution boards
If you wish to connect the busbar trunking system to a non-Siemens distribution board, you
can establish this connection using an LR....-T. connection unit for non-Siemens distribution
boards. The connection unit is built into the distribution board and serves as an interface to
the copper connections of the distribution system.
Versions
Aluminium or copper conductors are used for connection units for non-Siemens distribution
boards. The rated currents up to a maximum of 6150 A correspond to the data in the
Technical data section. The required conductor cross sections for copper connections are
also listed in the Technical data section.
Installing the connection unit
The connections in the distribution board must be copper-plated by the board manufacturer
or in compliance with that manufacturer's specifications. The board manufacturer must
ensure that the required short-circuit rating is achieved and the permissible temperature limit
of the non-Siemens connection unit is not exceeded.
Figure 6-7 Connection unit for non-Siemens distribution boards
The dimensions correspond to those of the incoming cable connection units.
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6.2.9 Connection unit for transformers and distribution boards
The wide variety of transformer types reflects the variety of rated currents and the different
phase sequences and clearances.
This type variety requires high flexibility as regards transformer connection in busbar
trunking systems.
The universal connection unit can also be used to connect distribution boards.
For LR busbar trunking systems up to 6150 A, transformer connection units are available
with busbar connection on the side (LR....-TC, -TD or -TE) and on the top (LR....-TJ, -TG,
-TM, -TK or -TX).
Busbar connection on the side and customer connection on the bottom
;
=
LR.....-TE(-F)
Length System
X ≤ 0.70 m
Z = 0.30...0.50 m
LR.01 to LR.09
X ≤ 1.00 m
Z = 0.30...0.50 m
LR.27 to LR.29
Busbar connection on the side and customer connection on the side
;
=
LR.....-TC(-F)
Length System
X ≤ 0.40…0.70 m (4L), 0.50…0.70 m (5L)
Z = 0.30...0.50 m
LR.01 to LR.29
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Busbar connection on the top and customer connection on the bottom
;
=
LR.....-TX(-F)
Length System
X ≤ 0.70 m
Z = 0.50 m
LR.01 to LR.09
X ≤ 1.00 m
Z = 0.70 m
LR.27 to LR.29
The phase clearances can be selected up to 750 mm.
Minimum phase clearance: Tag width + 25 mm
The sequence of the connection tags from conductors L1, L2, L3, N (PEN) and PE can be
freely selected.
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6.2.10 Incoming cable connection unit
If power needs to be supplied to the busbar trunking system via cables, you should use an
LR....-KE incoming cable connection unit.
;
<
;
;
;
=
=
Figure 6-8 Incoming cable connection unit
Design Size
4-conductor X = 0.40 m
Z = 0.30 m
Z1 = 0.06 m
5-conductor X = 0.50 m
Z = 0.30 m
Z1 = 0.06 m
Tags
Clearance Width Type
Y = 0.06 m LR.01 to LR.03
Y = 0.09 m LR.04
Y = 0.11 m LR.05
Y = 0.12 m LR.06
Y = 0.16 m LR.07
Y = 0.19 m LR.08
X1 = X2 = X3 = 0.10 m
Y = 0.21 m LR.09 to LR.29
You can connect single-core or multi-core cables. You can connect cross sections up to
300 mm2 (bolted connection) directly to the incoming cable connection unit bars.
The cable connections are moulded to the tags on site once the cables have been
connected. A moulding cast and cast resin mix are included in the scope of supply for this
purpose.
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6.2.11 Tap-offs for power distribution
The LR system has been designed for power transmission. However, power tap-offs for
loads can be created by adding straight trunking units with junction points and corresponding
junction boxes 1) to the LR run.
;
Figure 6-9 Straight trunking unit with tap-off unit
X = 0.50...3.00 m
The tap-off unit permits rated currents of up to 630 A. An equipment compartment (dashed
line to the right of the tap-off unit) is built onto the tap-off unit. Project-specific switchgear
(e.g. circuit breakers) is installed in the compartment and connected - both electrically and
mechanically - to the tap-off unit.
Tap-off units are not designed for connection whilst the LRC system is live.
All other characteristics and technical data can only be provided on request for specific
projects.
1) Junction boxes are only available on request
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6.2.12 Additional equipment
Joint block
The joint block is used for the trunking units' electrical and mechanical connections. LR
trunking units are usually supplied without joint units (junction blocks or monoblocks, as they
are also known). Accordingly, you need to make provision to plan and order joint blocks
separately as appropriate for the number of trunking unit connections.
Figure 6-10 Joint unit
Accessories for busbar connections with joint blocks
Once the electrical link with the joint block has been established, it needs to be cast with
epoxy resin. For this purpose, moulding casts, cast resin mix, separators and various tools
are provided as accessories.
5
(
6
,
1
$
/5&WRROVHW
Casting mould Cast resin mix Tool set
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Fixing brackets for horizontal installation
Various types of fixing bracket are available:
● Mounting position: edgewise or flat
● Mounting characteristic: run supported or fixed.
The standard supporting brackets are:
● LR..-BHF type for edgewise mounting
● LR..-BHH type for flat mounting
Figure 6-11 Flat (left) and edgewise (right) mounting position
The fixed points, as they are called, are created using long run lengths in conjunction with
expansion compensation units.
Fixing brackets for vertical installation
Various types of bracket have to be used to install vertical busbar runs:
● Spring clamp to carry the weight of the run, type LR..-BV.
● Sliding bracket to guide the run in the prescribed position, type LR..-BG.
● Fixed points to fix the run to the building structure, type LR..-BF.
LR..-BVW (wall mounting) LR..-BF
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6.3 Technical data
6.3.1 LR general data
Standards and regulations DIN EN 60439-1 and DIN EN 60439-2
Rated insulation voltage 1) Ui [V] AC 1000
Overvoltage category/pollution degree III/3
Rated insulation voltage 1) Ue [V] AC 1000
Frequency [Hz] 50 ... 60
Rated operational current Ie [A] 400 … 4600 (LRA)
630 ... 6150 (LRC)
Damp heat (constant),
to IEC 60068-2-78
Resistance to extreme climates
Damp heat (cyclic),
to IEC 60068-2-30
Ambient temperature [°C] * -5 ...+40
Degree of protection acc. to IEC/EN 60529 (type 2)
Busbar elements IP68
Connection elements/tap-off units IP68
Material
Enclosure for busbar elements, connection elements
Busbars
Epoxy resin
Aluminium with copper coating (LRA)
Copper (LRC)
Mounting positions Horizontal edgewise, horizontal flat, vertical
Colour Stone grey, similar to RAL 7030
Thermal characteristics
Ambient temperature [°C] 20 25 30 35 40 45 50 55 60
Conversion factor 1.15 1.10 1.05 1.00 0.96 0.89 0.84 0.78 0.72
1) For power distribution when using junction boxes on request
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6.3.2 Trunking units LRA..41 (4-pole, aluminium)
LRA 0141 0241 0341
Rated current Ie 400 630 800
Degree of protection IP68
Resistance R20 [mΩ/m] 0.161 0.121 0.081
Reactance X20 [mΩ/m] 0.050 0.042 0.026
Impedance Z20 [mΩ/m]
At 50 Hz and +20 °C
busbar temperature
0.169 0.128 0.085
Resistance Rwarm [mΩ/m] 0.176 0.142 0.096
Reactance Xwarm [mΩ/m] 0.050 0.042 0.026
Impedance Zwarm [mΩ/m]
At 50 Hz and final
heating of busbars
0.178 0.151 0.102
Resistance RF [mΩ/m] 0.353 0.284 0.193
Reactance XF [mΩ/m] 0.175 0.100 0.155
Impedance ZF [mΩ/m]
For 4-pole systems in
the event of a fault in
accordance with
EN 60439-2 Annex N 0.394 0.301 0.247
Resistance R0 PEN [mΩ/m] 0.470 0.379 0.257
Reactance X0 PEN [mΩ/m] 0.609 0.509 0.529
Impedance Z0 PEN [mΩ/m]
Zero impedance for
4-pole systems to
DIN VDE 0102, IEC 909 0.769 0.634 0.588
Short-circuit rating
Rated impulse withstand current Ipk [kA] 24 24 55.7
Rated short-time withstand current Icw (t = 1 s) [kA] 12 12 26.5
Conductor material Aluminium
Conductor cross-section PEN [mm2] 176 236 354
Conductor cross-section of active conductors [mm2] 176 236 354
Fire load [kWh/m] 13.01 12.59 11.76
Fixing distances [m] 1.5 1.5 1.5
Weight (kg/m) (2 m length with clamped connection) 21.89 22.08 22.46
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LRA 0441 0541 0641 0741 0841 0941
Rated current Ie 1000 1200 1400 1600 2000 2500
Degree of protection IP68
Resistance R20 [mΩ/m] 0.060 0.048 0.040 0.030 0.024 0.020
Reactance X20 [mΩ/m] 0.055 0.050 0.042 0.046 0.031 0.029
Impedance per unit length Z20 [mΩ/m]
At 50 Hz and +20℃
busbar temperature
0.081 0.070 0.058 0.055 0.040 0.035
Resistance Rwarm [mΩ/m] 0.074 0.059 0.050 0.036 0.029 0.026
Reactance Xwarm [mΩ/m] 0.055 0.050 0.042 0.046 0.031 0.029
Impedance per unit length Zwarm [mΩ/m]
At 50 Hz and final
heating of busbars
0.094 0.079 0.066 0.059 0.043 0.038
Resistance per unit length RF [mΩ/m] 0.149 0.119 0.099 0.073 0.060 0.051
Reactance per unit length XF [mΩ/m] 0.147 0.118 0.098 0.091 0.116 0.118
Impedance per unit length ZF [mΩ/m]
For 4-pole systems in
the event of a fault in
accordance with
EN 60439-2 Annex N 0.209 0.167 0.139 0.117 0.131 0.129
Resistance R0 PEN[m Ω/m] 0.198 0.159 0.132 0.097 0.080 0.068
Reactance X0 PEN [mΩ/m] 0.355 0.284 0.237 0.220 0.212 0.204
Impedance per unit length Z0 PEN [mΩ/m]
Zero impedance for
4-pole systems to
DIN VDE 0102, IEC 909 0.407 0.325 0.271 0.240 0.227 0.215
Short-circuit rating
Rated impulse withstand current Ipk [kA] 55.7 117 117 143 143 143
Rated short-time withstand current Icw (t = 1 s) [kA] 26.5 53 53 65 65 65
Conductor material Aluminium
Conductor cross-section PEN [mm2] 472 592 712 944 1184 1424
Conductor cross-section of active conductors [mm2] 472 592 712 944 1184 1424
Fire load [kWh/m] 15.72 19.19 21.32 27.51 32.05 36.68
Fixing distances [m] 1.5 1.5 1.5 1.5 1.5 1.5
Weight (kg/m) (2 m length with clamped connection) 29.74 34.66 38.81 48.87 58.17 67.97
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Technical data of the busbar elements
LRA 2741 2841 2941
Rated current Ie 3200 4000 4600
Degree of protection IP68
Resistance R20 [mΩ/m] 0.015 0.012 0.010
Reactance X20 [mΩ/m] 0.024 0.026 0.023
Impedance per unit length Z20 [mΩ/m]
At 50 Hz and +20° C
busbar temperature
0.028 0.029 0.025
Resistance Rwarm [mΩ/m] 0.019 0.015 0.013
Reactance Xwarm [mΩ/m] 0.024 0.026 0.023
Impedance per unit length Zwarm [mΩ/m]
At 50 Hz and final
heating of busbars
0.031 0.030 0.026
Resistance per unit length RF [mΩ/m] 0.038 0.030 0.025
Reactance per unit length XF [mΩ/m] 0.093 0.084 0.068
Impedance per unit length ZF [mΩ/m]
For 4-pole systems in
the event of a fault in
accordance with
EN 60439-2 Annex N 0.100 0.089 0.073
Resistance R0 PEN[m Ω/m] 0.051 0.041 0.034
Reactance X0 PEN [mΩ/m] 0.197 0.192 0.167
Impedance per unit length Z0 PEN [mΩ/m]
Zero impedance for
4-pole systems to
DIN VDE 0102, IEC 909 0.204 0.196 0.170
Short-circuit rating
Rated impulse withstand current Ipk [kA] 220 220 220
Rated short-time withstand current Icw (t = 1 s) [kA] 100 100 100
Conductor material Aluminium
Conductor cross-section PEN (mm2) 1889 2368 2849
Conductor cross-section of active conductors [mm2] 1889 2368 2849
Fire load [kWh/m] 55.01 64.11 73.36
Fixing distances [m] 1.5 1.5 1.5
Weight (kg/m) (2 m length with clamped connection) 97.74 116.34 135.95
Resistance per unit length from measurements/derivations
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6.3.3 Trunking units LRA..51 (5-pole, aluminium)
LRA 0151 0251 0351
Rated current Ie 400 630 800
Degree of protection IP68
Resistance R20 [mΩ/m] 0.161 0.121 0.081
Reactance X20 [mΩ/m] 0.050 0.042 0.026
Impedance per unit length Z20 [mΩ/m]
At 50 Hz and +20° C
busbar temperature
0.169 0.128 0.085
Resistance Rwarm [mΩ/m] 0.176 0.142 0.096
Reactance Xwarm [mΩ/m] 0.050 0.042 0.026
Impedance per unit length Zwarm [mΩ/m]
At 50 Hz and final
heating of busbars
0.178 0.151 0.102
AC resistance per unit length RF PE [mΩ/m] 0.353 0.284 0.193
Reactance per unit length XF PE [mΩ/m] 0.157 0.090 0.140
Impedance per unit length ZF PE [mΩ/m]
For 5-pole systems (PE)
in the event of a fault in
accordance with
EN 60439-2 Annex N 0.386 0.298 0.238
Resistance per unit length RF N [mΩ/m] 0.353 0.284 0.193
Reactance per unit length XF N [mΩ/m] 0.175 0.100 0.155
Impedance per unit length ZF N [mΩ/m]
For 5-pole systems (N)
in the event of a fault in
accordance with
EN 60439-2 Annex N 0.394 0.301 0.209
Resistance 1 R0 N [mΩ/m] 0.447 0.360 0.244
Reactance 1 X0 N [mΩ/m] 0.974 0.814 0.846
Impedance per unit length 1 Z0 N [mΩ/m]
Zero impedance for
5-pole systems (PE) to
DIN VDE 0102, IEC 909 1.071 0.890 0.880
Resistance 2 R0 PE [mΩ/m] 0.470 0.379 0.257
Reactance 2 X0 PE [mΩ/m] 0.609 0.509 0.529
Impedance per unit length 2 Z0 PE [mΩ/m]
Zero impedance for
5-pole systems (PE) to
DIN VDE 0102, IEC 909 0.769 0.634 0.588
Short-circuit rating
Rated impulse withstand current Ipk [kA] 24 24 55.7
Rated short-time withstand current Icw (t = 1 s) [kA] 12 12 26.5
Conductor material Aluminium
Conductor cross-section N [mm2 ] 176 236 354
Conductor cross-section of active conductors [mm2] 176 236 354
Conductor cross-section PE [mm2] 176 236 354
Fire load [kWh/m] 12.70 12.17 11.13
Fixing distances [m] 1.5 1.5 1.5
Weight (2 m length with clamped connection) [kg/m] 22.03 22.27 22.75
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LRA 0451 0551 0651 0751 0851 0951
Rated current Ie 1000 1200 1400 1600 2000 2500
Degree of protection IP68
Resistance R20 [mΩ/m] 0.060 0.048 0.040 0.030 0.024 0.020
Reactance X20 [mΩ/m] 0.055 0.050 0.042 0.046 0.031 0.029
Impedance per unit length Z20 [mΩ/m]
At 50 Hz and +20° C
busbar temperature
0.081 0.070 0.058 0.055 0.040 0.035
Resistance Rwarm [mΩ/m] 0.074 0.059 0.050 0.036 0.029 0.026
Reactance Xwarm [mΩ/m] 0.055 0.050 0.042 0.046 0.031 0.029
Impedance per unit length Zwarm [mΩ/m]
At 50 Hz and final
heating of busbar
0.094 0.079 0.066 0.059 0.043 0.038
AC resistance per unit length
RF PE [mΩ/m]
0.149 0.119 0.099 0.073 0.060 0.051
Reactance per unit length XF PE [mΩ/m] 0.132 0.106 0.088 0.082 0.105 0.106
Impedance per unit length ZF PE [mΩ/m]
For 5-pole systems (PE)
in the event of a fault in
accordance with
EN 60439-2 Annex N 0.199 0.159 0.133 0.110 0.121 0.118
AC resistance per unit length
RF N [mΩ/m]
0.149 0.119 0.099 0.073 0.060 0.051
Reactance per unit length XF N [mΩ/m] 0.147 0.118 0.098 0.091 0.116 0.118
Impedance per unit length ZF N [mΩ/m]
For 5-pole systems (N)
in the event of a fault in
accordance with
EN 60439-2 Annex N 0.167 0.167 0.139 0.117 0.131 0.129
Resistance 1 R0 N [mΩ/m] 0.188 0.151 0.126 0.092 0.076 0.065
Reactance per unit length 1 X0 N [mΩ/m] 0.568 0.454 0.379 0.352 0.339 0.326
Impedance per unit length Z0 N [mΩ/m]
Zero impedance for
5-pole systems (N) to
DIN VDE 0102, IEC 909 0.598 0.479 0.399 0.364 0.348 0.333
Resistance 2 R0 PE [mΩ/m] 0.198 0.159 0.132 0.097 0.080 0.068
Reactance per unit length 2 X0 PE [mΩ/m] 0.355 0.284 0.237 0.220 0.212 0.204
Impedance per unit length 2 Z0 PE [mΩ/m]
Zero impedance for
5-pole systems (PE) to
DIN VDE 0102, IEC 909 0.407 0.325 0.271 0.240 0.227 0.215
Short-circuit rating
Rated short-time withstand current Ipk [kA] 55.7 117 117 143 143 143
Rated short-time withstand current Icw (t = 1 s) [kA] 26.5 53 53 65 65 65
Conductor material Aluminium
Conductor cross-section N [mm2 ] 472 592 712 944 1184 1424
Conductor cross-section of active conductors [mm2] 472 592 712 944 1184 1424
Conductor cross-section PE [mm2] 472 592 712 944 1184 1424
Fire load [kWh/m] 18.69 22.84 25.33 32.71 38.04 43.48
Fixing distances [m] 1.5 1.5 1.5 1.5 1.5 1.5
Weight (2 m length with clamped connection) [kg/m] 34.26 40.04 45.04 56.79 67.80 79.30
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238 Planning Manual, 09/2011, A5E01541101-02
LRA 2751 2851 2951
Rated current Ie [A] 3200 4000 4600
Degree of protection IP68
Resistance R20 [mΩ/m] 0.015 0.012 0.010
Reactance X20 [mΩ/m] 0.024 0.026 0.023
Impedance per unit length Z20 [mΩ/m]
At 50 Hz and +20° C
busbar temperature
0.028 0.029 0.025
Resistance Rwarm [mΩ/m] 0.019 0.015 0.013
Reactance Xwarm [mΩ/m] 0.024 0.026 0.023
Impedance per unit length Zwarm [mΩ/m]
At 50 Hz and final
heating of busbars
0.031 0.030 0.026
AC resistance per unit length RF PE [mΩ/m] 0.038 0.030 0.025
Reactance per unit length XF PE [mΩ/m] 0.084 0.076 0.061
Impedance per unit length ZF PE [mΩ/m]
For 5-pole systems (PE)
in the event of a fault in
accordance with
EN 60439-2 Annex N 0.092 0.082 0.066
Resistance per unit length RF N [mΩ/m] 0.038 0.030 0.025
Reactance per unit length XF N [mΩ/m] 0.093 0.084 0.068
Impedance per unit length ZF N [mΩ/m]
For 5-pole systems (N)
in the event of a fault in
accordance with
EN 60439-2 Annex N 0.100 0.089 0.073
Resistance 1 R0 N [mΩ/m] 0.048 0.039 0.032
Reactance 1 X0 N [mΩ/m] 0.316 0.307 0.267
Impedance per unit length 1 Z0 N [mΩ/m]
Zero impedance for
5-pole systems (PE) to
DIN VDE 0102, IEC 909 0.319 0.310 0.269
Resistance 2 R0 PE [mΩ/m] 0.051 0.041 0.034
Reactance 2 X0 PE [mΩ/m] 0.197 0.192 0.167
Impedance per unit length 2 Z0 PE [mΩ/m]
Zero impedance for
5-pole systems (PE) to
DIN VDE 0102, IEC 909 0.204 0.196 0.170
Short-circuit rating
Rated impulse withstand current Ipk [kA] 220 220 220
Rated short-time withstand current Icw (t = 1 s) [kA] 100 100 100
Conductor material Aluminium
Conductor cross-section N (mm2) 1889 2368 2849
Conductor cross-section of active conductors [mm2] 1889 2368 2849
Conductor cross-section PE [mm2] 1889 2368 2849
Fire load [kWh/m] 65.43 76.08 86.96
Fixing distances [m] 1.5 1.5 1.5
Weight (2 m length with clamped connection) [kg/m] 113.59 135.59 158.59
Resistance per unit length from measurements/derivations
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6.3.4 Trunking units LRC..41 (4-pole, copper)
LRC 0141 0241 0341
Rated current Ie 630 800 1000
Degree of protection IP68
Resistance R20 [mΩ/m] 0.099 0.074 0.049
Reactance X20 [mΩ/m] 0.068 0.058 0.057
Impedance per unit length Z20 [mΩ/m]
At 50 Hz and +20° C
busbar temperature
0.120 0.094 0.075
Resistance Rwarm [mΩ/m] 0.119 0.093 0.062
Reactance Xwarm [mΩ/m] 0.106 0.085 0.069
Impedance per unit length Zwarm [mΩ/m]
At 50 Hz and final
heating of busbars
0.159 0.126 0.092
Resistance per unit length RF [mΩ/m] 0.197 0.15 0.117
Reactance per unit length XF [mΩ/m] 0.231 0.191 0.16
Impedance per unit length ZF [mΩ/m]
For 4-pole systems in
the event of a fault in
accordance with
EN 60439-2 Annex N 0.304 0.243 0.198
Resistance R0 PEN[m Ω/m] 0.275 0.217 0.173
Reactance X0 PEN [mΩ/m] 0.269 0.227 0.193
Impedance per unit length Z0 PEN [mΩ/m]
Zero impedance for
4-pole systems to
DIN VDE 0102, IEC 909 0.385 0.313 0.259
Short-circuit rating
Rated impulse withstand current Ipk [kA] 48 48 80
Rated short-time withstand current Icw (t = 1 s) [kA] 23 23 38
Conductor material Copper
Conductor cross-section PEN [mm2] 176 236 354
Conductor cross-section of active conductors [mm2] 176 236 354
Fire load [kWh/m] 13.01 12.59 11.76
Fixing distances [m] 1.5 1.5 1.5
Weight (kg/m) (2 m length with clamped connection) 25.24 26.93 30.31
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LRC 0441 0541 0641 0741 0841 0941
Rated current Ie 1350 1600 1700 2000 2500 3200
Degree of protection IP68
Resistance R20 [mΩ/m] 0.039 0.031 0.026 0.021 0.017 0.015
Reactance X20 [mΩ/m] 0.051 0.046 0.038 0.034 0.031 0.029
Impedance per unit length Z20 [mΩ/m]
At 50 Hz and +20° C
busbar temperature
0.065 0.056 0.046 0.040 0.035 0.033
Resistance Rwarm [mΩ/m] 0.050 0.040 0.031 0.025 0.020 0.018
Reactance Xwarm [mΩ/m] 0.051 0.046 0.038 0.034 0.031 0.029
Impedance per unit length Zwarm [mΩ/m]
At 50 Hz and final
heating of busbars
0.071 0.061 0.049 0.042 0.037 0.034
Resistance per unit length RF [mΩ/m] 0.094 0.075 0.060 0.048 0.038 0.031
Reactance per unit length XF [mΩ/m] 0.136 0.116 0.098 0.084 0.071 0.060
Impedance per unit length ZF [mΩ/m]
For 4-pole systems in
the event of a fault in
accordance with
EN 60439-2 Annex N 0.165 0.138 0.115 0.096 0.081 0.068
Resistance R0 PEN[m Ω/m] 0.142 0.116 0.095 0.078 0.064 0.053
Reactance X0 PEN [mΩ/m] 0.164 0.139 0.119 0.101 0.086 0.073
Impedance per unit length Z0 PEN [mΩ/m]
Zero impedance for
4-pole systems to
DIN VDE 0102, IEC 909 0.217 0.182 0.152 0.128 0.107 0.090
Short-circuit rating
Rated impulse withstand current Ipk [kA] 80 140 140 140 176 176
Rated short-time withstand current Icw (t = 1 s) [kA] 38 65 65 65 80 80
Conductor material Copper
Conductor cross-section PEN [mm2] 472 592 712 944 1184 1424
Conductor cross-section of active conductors [mm2] 472 592 712 944 1184 1424
Fire load [kWh/m] 15.72 19.19 21.32 27.51 32.05 36.68
Fixing distances [m] 1.5 1.5 1.5 1.5 1.5 1.5
Weight (kg/m) (2 m length with clamped connection) 40.56 47.39 55.69 71.72 86.59 102.34
Planning with LR
6.3 Technical data
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Planning Manual, 09/2011, A5E01541101-02 241
LRC 2741 2841 2941
Rated current Ie 4000 5000 6150
Degree of protection IP68
Resistance R20 [mΩ/m] 0.010 0.008 0.006
Reactance X20 [mΩ/m] 0.014 0.013 0.011
Impedance per unit length Z20 [mΩ/m]
At 50 Hz and +20° C
busbar temperature
0.017 0.015 0.013
Resistance Rwarm [mΩ/m] 0.013 0.010 0.008
Reactance Xwarm [mΩ/m] 0.014 0.013 0.011
Impedance per unit length Zwarm [mΩ/m]
At 50 Hz and final
heating of busbars
0.019 0.016 0.014
Resistance per unit length RF [mΩ/m] 0.022 0.018 0.014
Reactance per unit length XF [mΩ/m] 0.054 0.046 0.039
Impedance per unit length ZF [mΩ/m]
For 4-pole systems in
the event of a fault in
accordance with
EN 60439-2 Annex N 0.059 0.049 0.041
Resistance R0 PEN[m Ω/m] 0.046 0.038 0.031
Reactance X0 PEN [mΩ/m] 0.067 0.057 0.048
Impedance per unit length Z0 PEN [mΩ/m]
Zero impedance for
4-pole systems to
DIN VDE 0102, IEC 909 0.082 0.068 0.057
Short-circuit rating
Rated impulse withstand current Ipk [kA] 220 220 220
Rated short-time withstand current Icw (t = 1 s) [kA] 100 100 100
Conductor material Copper
Conductor cross-section PEN (mm2) 1889 2368 2849
Conductor cross-section of active conductors [mm2] 1889 2368 2849
Fire load [kWh/m] 55.01 64.11 73.36
Fixing distances [m] 1.5 1.5 1.5
Weight (kg/m) (2 m length with clamped connection) 140.49 171.99 186.69
Resistance per unit length from measurements/derivations
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6.3 Technical data
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242 Planning Manual, 09/2011, A5E01541101-02
6.3.5 Trunking units LRC..51 (5-pole, copper)
LRC 0151 0251 0351
Rated current Ie 630 800 1000
Degree of protection IP68
Resistance R20 [mΩ/m] 0.099 0.074 0.049
Reactance X20 [mΩ/m] 0.068 0.058 0.057
Impedance per unit length Z20 [mΩ/m]
At 50 Hz and +20° C
busbar temperature
0.120 0.094 0.075
Resistance Rwarm [mΩ/m] 0.119 0.093 0.062
Reactance Xwarm [mΩ/m] 0.106 0.085 0.069
Impedance per unit length Zwarm [mΩ/m]
At 50 Hz and final
heating of busbars
0.159 0.126 0.092
AC resistance per unit length RF PE [mΩ/m] 0.197 0.150 0.117
Reactance per unit length XF PE [mΩ/m] 0.231 0.191 0.16
Impedance per unit length ZF PE [mΩ/m]
For 5-pole systems (PE)
in the event of a fault in
accordance with
EN 60439-2 Annex N 0.304 0.243 0.198
Resistance per unit length RF N [mΩ/m] 0.197 0.150 0.117
Reactance per unit length XF N [mΩ/m] 0.231 0.191 0.16
Impedance per unit length ZF N [mΩ/m]
For 5-pole systems (N) in
the event of a fault in
accordance with
EN 60439-2 Annex N 0.304 0.243 0.198
Resistance 1 R0 N [mΩ/m] 0.275 0.217 0.173
Reactance 1 X0 N [mΩ/m] 0.269 0.227 0.193
Impedance per unit length 1 Z0 N [mΩ/m]
Zero impedance for
5-pole systems (PE) to
DIN VDE 0102, IEC 909 0.385 0.313 0.259
Resistance 2 R0 PE [mΩ/m] 0.275 0.217 0.173
Reactance 2 X0 PE [mΩ/m] 0.269 0.227 0.193
Impedance per unit length 2 Z0 PE [mΩ/m]
Zero impedance for
5-pole systems (PE) to
DIN VDE 0102, IEC 909 0.385 0.313 0.259
Short-circuit rating
Rated impulse withstand current Ipk [kA] 48 48 80
Rated short-time withstand current Icw (t = 1 s) [kA] 23 23 38
Conductor material Copper
Conductor cross-section N [mm2 ] 176 236 354
Conductor cross-section of active conductors [mm2] 176 236 354
Conductor cross-section PE [mm2] 176 236 354
Fire load [kWh/m] 12.70 12.17 11.13
Fixing distances [m] 1.5 1.5 1.5
Weight (2 m length with clamped connection) [kg/m] 26.70 28.82 33.04
Planning with LR
6.3 Technical data
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 243
LRC 0451 0551 0651 0751 0851 0951
Rated current Ie 1350 1600 1700 2000 2500 3200
Degree of protection IP68
Resistance R20 [mΩ/m] 0.039 0.031 0.026 0.021 0.017 0.015
Reactance X20 [mΩ/m] 0.051 0.046 0.038 0.034 0.031 0.029
Impedance per unit length Z20 [mΩ/m]
At 50 Hz and +20° C
busbar temperature
0.065 0.056 0.046 0.040 0.035 0.033
Resistance Rwarm [mΩ/m] 0.050 0.040 0.031 0.025 0.020 0.018
Reactance Xwarm [mΩ/m] 0.051 0.046 0.038 0.034 0.031 0.029
Impedance per unit length Zwarm [mΩ/m]
At 50 Hz and final
heating of busbar
0.071 0.061 0.049 0.042 0.037 0.034
AC resistance per unit length
RF PE [mΩ/m]
0.094 0.075 0.060 0.048 0.038 0.031
Reactance per unit length XF PE [mΩ/m] 0.150 0.127 0.108 0.092 0.078 0.066
Impedance per unit length ZF PE [mΩ/m]
For 5-pole systems (PE)
in the event of a fault in
accordance with
EN 60439-2 Annex N 0.176 0.148 0.124 0.104 0.087 0.073
AC resistance per unit length
RF N [mΩ/m]
0.094 0.075 0.060 0.048 0.038 0.031
Reactance per unit length XF N [mΩ/m] 0.136 0.116 0.098 0.084 0.071 0.060
Impedance per unit length ZF N [mΩ/m]
For 5-pole systems (N) in
the event of a fault in
accordance with
EN 60439-2 Annex N 0.165 0.138 0.115 0.096 0.081 0.068
Resistance 1 R0 N [mΩ/m] 0.163 0.134 0.110 0.090 0.074 0.060
Reactance per unit length 1 X0 N [mΩ/m] 0.328 0.279 0.237 0.201 0.171 0.146
Impedance per unit length Z0 N [mΩ/m]
Zero impedance for
5-pole systems (N) to
DIN VDE 0102, IEC 909 0.366 0.309 0.261 0.221 0.186 0.158
Resistance 2 R0 PE [mΩ/m] 0.142 0.116 0.095 0.078 0.064 0.053
Reactance per unit length 2 X0 PE
[mΩ/m]
0.164 0.139 0.119 0.101 0.086 0.073
Impedance per unit length 2 Z0 PE
[mΩ/m]
Zero impedance for
5-pole systems (PE) to
DIN VDE 0102, IEC 909
0.217 0.182 0.152 0.128 0.107 0.090
Short-circuit rating
Rated short-time withstand current Ipk [kA] 80 140 140 140 176 176
Rated short-time withstand current Icw (t = 1 s) [kA] 38 65 65 65 80 80
Conductor material Copper
Conductor cross-section N [mm2 ] 472 592 712 944 1184 1424
Conductor cross-section of active conductors [mm2] 472 592 712 944 1184 1424
Conductor cross-section PE [mm2] 472 592 712 944 1184 1424
Fire load [kWh/m] 18.69 22.84 25.33 32.71 38.04 43.48
Fixing distances [m] 1.5 1.5 1.5 1.5 1.5 1.5
Weight (2 m length with clamped connection) [kg/m] 48.77 58.09 67.03 86.77 104.94 123.99
Planning with LR
6.3 Technical data
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244 Planning Manual, 09/2011, A5E01541101-02
LRC 2751 2851 2951
Rated current Ie [A] 4000 5000 6150
Degree of protection IP68
Resistance R20 [mΩ/m] 0.010 0.008 0.006
Reactance X20 [mΩ/m] 0.014 0.013 0.011
Impedance per unit length Z20 [mΩ/m]
At 50 Hz and +20° C
busbar temperature
0.017 0.015 0.013
Resistance Rwarm [mΩ/m] 0.013 0.010 0.008
Reactance Xwarm [mΩ/m] 0.014 0.013 0.011
Impedance per unit length Zwarm [mΩ/m]
At 50 Hz and final
heating of busbars
0.019 0.016 0.014
AC resistance per unit length RF PE [mΩ/m] 0.022 0.018 0.014
Reactance per unit length XF PE [mΩ/m] 0.059 0.050 0.043
Impedance per unit length ZF PE [mΩ/m]
For 5-pole systems (PE)
in the event of a fault in
accordance with
EN 60439-2 Annex N 0.063 0.053 0.045
Resistance per unit length RF N [mΩ/m] 0.022 0.018 0.014
Reactance per unit length XF N [mΩ/m] 0.054 0.046 0.039
Impedance per unit length ZF N [mΩ/m]
For 5-pole systems (N) in
the event of a fault in
accordance with
EN 60439-2 Annex N 0.059 0.049 0.041
Resistance 1 R0 N [mΩ/m] 0.053 0.043 0.036
Reactance 1 X0 N [mΩ/m] 0.134 0.114 0.097
Impedance per unit length 1 Z0 N [mΩ/m]
Zero impedance for
5-pole systems (PE) to
DIN VDE 0102, IEC 909 0.144 0.122 0.103
Resistance 2 R0 PE [mΩ/m] 0.046 0.038 0.031
Reactance 2 X0 PE [mΩ/m] 0.067 0.057 0.048
Impedance per unit length 2 Z0 PE [mΩ/m]
Zero impedance for
5-pole systems (PE) to
DIN VDE 0102, IEC 909 0.082 0.068 0.057
Short-circuit rating
Rated impulse withstand current Ipk [kA] 220 220 220
Rated short-time withstand current Icw (t = 1 s) [kA] 100 100 100
Conductor material Copper
Conductor cross-section N (mm2) 1889 2368 2849
Conductor cross-section of active conductors [mm2] 1889 2368 2849
Conductor cross-section PE [mm2] 1889 2368 2849
Fire load [kWh/m] 65.43 76.08 86.96
Fixing distances [m] 1.5 1.5 1.5
Weight (2 m length with clamped connection) [kg/m] 170.30 208.77 264.47
Resistance per unit length from measurements/derivations
Planning with LR
6.4 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 245
6.4 Dimension drawings
4-conductor system
LR.0141 to LR.0941
;$
%
LR.2741 to LR.2941
;$
%
System A [mm] B [mm] x [mm]
LR.0141
LR.0241
LR.0341
90 90
LRC.441 110
LR.0541 130
LR.0641 150
LR.0741 190
LR.0841 230
LR.0941 270
LR.2741 380
LR.2841 460
LR.2941
100
540
300 ... 3000
Planning with LR
6.4 Dimension drawings
SIVACON 8PS - Planning with SIVACON 8PS
246 Planning Manual, 09/2011, A5E01541101-02
5-conductor system
LR.0151 to LR.0951
;$
%
LR.2751 to LR.2951
;$
%
System A [mm] B [mm] x [mm]
LR.0151
LR.0251
LR.0351
90 90
LR.0451 110
LR.0551 130
LR.0651 150
LR.0751 190
LR.0851 230
LR.0951 270
LR.2751 380
LR.2851 460
LR.2951
120
540
300 ... 3000
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 247
Further information about planning 7
7.1 Dimensioning and selection
7.1.1 Determining the voltage drop
Formula for voltage drop
With long trunking runs it may be necessary to calculate the voltage drop:
%VLQ
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ΔU = voltage drop (V)
IB = rated current (A)
l = total length of system (m)
k = load distribution factor
R1 = ohmic resistance (mΩ/m) with busbar final heating
X1 = inductive resistance (mΩ/m) with busbar final heating
cos φ = power factor
The load distribution factor k for calculating the voltage drop at the end of the busbar
trunking system is defined as follows:
● k = 1, if the load is concentrated at the end of the busbar trunking system (power
transmission).
● k = (n +1)/(2 x n), if the load is distributed across n taps.
To calculate the voltage drop in the distance d between the start of a tap and the start of the
busbar system, proceed as follows:
● k = (2 x n + 1 – n x d/L)/(2 x n)
Voltage drop diagrams
The following diagrams illustrate the voltage drop on the BD2, LD, LX and LR systems
● taking into account the final heating resistances (in accordance with EN 60439-2)
● with a load distribution factor
– k = 1 for LD, LX and LR
– k = 0.5 for BD2
● at rated current load. (In the case of a different current diversity factor, the value of the
curve must be multiplied by the appropriate distribution factor.)
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For systems with unevenly distributed loads, we recommend the SIMARIS design program
for calculating short circuits and load flows (see Tools and services).
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Further information about planning
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ෙ89P
/;$
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Voltage drop LXA Voltage drop LXA
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Voltage drop LXC Voltage drop LXC
Further information about planning
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ෙ89P
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Voltage drop LRC01 to LRC07 Voltage drop LRC08 to LRC29
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Voltage drop LRA01 to LRA07 Voltage drop LRA08 to LRA29
Further information about planning
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Planning Manual, 09/2011, A5E01541101-02 251
7.1.2 Overload protection and short-circuit protection
Busbar trunking systems need to be protected against short circuits and overloads. Fuses
and circuit breakers are available for use as protective devices. With the selection of these
protective devices the level of the expected short-circuit currents, selectivity requirements or
operating and signalling functions are also factors for consideration.
When you decide on your short-circuit protection via fuses and circuit breakers you must not
exceed the specified short-circuit ratings of the busbar trunking systems. It depends on the
level of expected short-circuit current, whether a current limiting protective device is required
and what short-circuit breaking capacity the protective device must have..
An overview of the circuit breakers which are able to provide short-circuit and overload
protection (400 V and 50 Hz) for the corresponding busbar system appears in the table
below 1).
The following applies:
I"k ≤ Icc ≤ Icu
I''k = anticipated short-circuit current at installation location
Icc = rated conditional short-circuit current of the trunking run
Icu = rated short-circuit breaking capacity of the circuit breaker
Type Rated
current
Circuit breakers
with normal
switching
capacity
Rated short-
circuit
current 2)
Circuit breakers
with strong
switching capacity
Rated short-
circuit current 2)
Circuit breakers
with high
switching
capacity
Rated short-
circuit
current 2)
I
n Icu Icc I
cu I
cc Icu I
cc
A kA kA kA kA kA kA
BD2A(C)-160 160 3VL27 16-1... 40 20 3VL27 16-2... 70 20 3VL27 16-3... 100 20
BD2A(C)-250 250 3VL37 25-1... 40 40 3VL37 25-2... 70 50 3VL37 25-3... 100 50
BD2A(C)-400 400 3VL47 40-1... 45 45 3VL47 40-2... 70 45 3VL47 40-3... 100 45
BD2A(C)-630 630 3VL57 63-1DC36 45 45 3VL57 63-2DC36 70 70 3VL57 63-3DC36 100 100
BD2A(C)-800 800 3VL57 80-1SE36 50 3VL57 80-2SE36 70 70 3VL57 80-3SE36 100 100
BD2A(C)-1000 1000 3VL77 10-1SE36 50 3VL77 10-2SE36 70 60 3VL77 10-3SE36 100 60
BD2C-1250 1250 3VL77 12-1SE36 50 3VL77 12-2SE36 70 60 3VL77 12-3SE36 100 60
1) The tripping characteristic of the protective device must be selected as appropriate for the
short-circuit rating of the busbar systems, the type of system, the type and number of
loads, as well as in line with country-specific regulations and type series. This table
contains only a brief overview of BD2 on the use of circuit breakers for protection against
short-circuit and overload, and it is intended only as a recommendation. We always
recommend that you carry out a calculation using the SIMARIS design network tool to
determine the appropriate protection. Please contact our TIP specialists for this purpose.
2) The values for the conditional rated short-circuit current Icc apply for the busbar trunking
systems without taking account of the tap-off units.
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7.1.3 Loop impedance
As the level of loop impedance is decisive as regards the magnitude of the single-pole short-
circuit current, DIN VDE 0100-610 prescribes that loop impedance must be determined
between:
● Phasel conductor and protective conductor or
● Phase conductor and PEN conductor
The value can be determined by means of:
● Measurements taken using measuring instruments
● Calculation
● Simulating the network in the network model
Impedance values for the BD2, LD, LX and LR busbar trunking systems are listed in the
"Technical data" section; these can be used to calculate the loop impedances of a busbar
system forming part of the total loop impedance.
Calculating the loop impedance of all contributory equipment in a system (incoming power
supply, transformers, distribution boards, cable runs, etc.) takes a great deal of time and
effort. In this regard, planning time and effort can be reduced significantly by using a
dimensioning program such as SIMARIS design which stores the necessary data for most
common electrical equipment in a database.
7.1.4 Degrees of protection for busbar trunking systems
Use in areas at risk of fire
In areas at risk of fire, in accordance with European standard HD 384.4.482 S1, increased
requirements are placed on the degree of protection to be afforded for electrical equipment.
In the event of a fire risk due to the nature of the materials being processed or stored, if it is
possible that dust will accumulate, the minimum degree of protection must be equivalent to
IP5X. If dust is not to be reckoned with, national regulations shall apply accordingly.
The risk prevention arm of the association of German insurers sets out the following
requirements:
– In the event of a fire risk due to dust or/and fibres: IP5X degree of protection
– In the event of a fire risk due to other readily flammable solid foreign bodies with a
diameter of 1 mm or more: IP4X degree of protection
SIVACON 8PS busbar trunking systems meet these requirements. They are therefore
suitable for such applications.
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7.1.5 Degrees of protection for electrical equipment in accordance with
IEC / EN 60529
1. code digit 2. code digit
Protection against direct
contact
Protection against solid foreign
bodies and dust
Protection against ingress of liquid
IP00 No special protection No special protection No special protection
IP20 Against finger contact Against solid bodies ≥ 12.5 mm No special protection
IP34 Against tools Against solid bodies ≥ 2.5 mm No damage caused by splashwater
IP41 Against foreign objects Against solid bodies ≥ 1 mm No damage caused by vertically dripping water
(Vertical drops)
IP43 Against foreign objects Against solid bodies ≥ 1 mm Protected against damage caused by water spray
IP54 Against foreign objects Against hazardous dust deposits
inside (Dust-tight)
No damage caused by splashwater
IP55 Against foreign objects Against hazardous dust deposits
inside (Dust-tight)
No damage caused by hosewater
IP65 Against foreign objects Against penetration of dust
(Dust-tight)
No damage caused by hosewater
IP66 Against foreign objects Against penetration of dust
(Dust-tight)
In the event of temporary immersion, ingress of
water will have no harmful effects (Water jet)
IP67 Against foreign objects Against penetration of dust
(Dust-tight)
Water may not ingress in harmful quantities
during immersion (Temporary immersion)
IP68 Against foreign objects Against penetration of dust
(Dust-tight)
Water may not ingress in harmful quantities
during immersion for indefinite periods
(Continuous immersion)
Protection against direct contact according to DIN EN 50274
These regulations must be complied with when dimensioning and laying out electrical
equipment in electrical systems with rated voltages up to 1000 VAC or 1500 VDC with
regard to protection against direct contact, insofar as actuators (pushbuttons, rockers, etc.)
are located in the vicinity of touch-hazardous parts.
"Finger-proof" touch protection only applies to the actuator in the actuating direction.
Measured from the central point, a clearance with a radius of r = 30 mm must be maintained
between the actuator and touch-hazardous parts. IP20 degree of protection is more than
"finger-proof" touch protection. It includes touch protection of electrical equipment from all
directions. For devices with "finger-proof" touch protection and IP00 degree of protection,
direct contact protection can be provided on request in the form of covers.
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7.1.6 Distribution systems
Determining the protective measure and selecting the electrical equipment appropriate for your
distribution system
TN systems
TN-S system: The neutral conductor and protective conductor function are separate
throughout the system.
/
/
/
1
3(
Figure 7-1 TN-S system
TN-C system: The neutral conductor and protective conductor function are combined
throughout the system.
/
/
/
3(1
Figure 7-2 TN-C system
TN-C-S system: Hybrid neutral conductor and protective conductor function. In one part of
the system they are combined, in the other part they are separate.
/
/
/
3(1
1
3(
Figure 7-3 TN-C-S system
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TT system
In TT systems, one point is directly earthed; the exposed parts of the electrical installation
are connected to earth electrodes which are isolated from the system earth electrode.
/
/
/
1
3(
Figure 7-4 TT system
IT system
The IT system has no direct link between active conductors and earthed parts; the exposed
parts of the electrical installation are earthed.
Today's IT systems feature protective measures in the form of a protective-conductor
system.
/
/
/
3(
Figure 7-5 IT system
① Exposed part
② Impedance
First letter: Earthing condition of the incoming current source
T = Direct earthing of a point
I = Either insulation of all active parts from earth or connection between a point and
earth via an impedance
Second letter: Earthing condition of the exposed parts of the electrical installation
T = Exposed part directly earthed regardless of whether or not a point in the power
supply is earthed
N = Exposed part linked directly to system earth, in alternating voltage systems, the
earthed point is usually the star point.
Additional letters = Arrangement of the neutral conductor and the protective conductor
S = Neutral conductor and protective conductor functions via separate conductors
C = Neutral conductor and protective conductor functions combined in a single
conductor (PEN)
Further information about planning
7.2 Planning example
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7.2 Planning example
① Power distribution board
② Busbar trunking system
③ Tap-off point
Figure 7-6 Power supply for a high rise building
No. of floors 15 (of which 8 are residential units)
Effective installed loads per residential unit 26 kW
Rated operating voltage Ue 400 V
Power factor cos φ 0.9
Load factor α 0.6
Utilization factor β 0.5
Supply transformers 1 x 1250 kVA, uk = 6%
Degree of protection IP30/IP54
Grid type TN-S
Further information about planning
7.2 Planning example
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Determining the rated current per floor
H
LQVW
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InS = rated current per floor (A)
Ue = rated operating voltage (V)
cos φ = power factor
Pinst = installed power rating (kW)
α = Rated diversity factor
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Determining the rated current of the trunking run
In = N · InS · β
In = 15 · 200 · 0.5 = 1500 A
In ≤ Ie
The rated diversity factor in accordance with EN60439-1 applies for the total number of loads
and the demand factor or the type of load. In the absence of precise figures for the demand
factor, reliable empirical values can be obtained from local utility companies. However, these
vary from region to region. Average values are listed in the table below:
Type of load β
Residential accommodation with electric ovens and water heaters 0.1...0.2
Off-peak storage heating 0.8...1
Lighting in office blocks and commercial buildings 0.7...0.9
Lifts and and general facilities 0.6...0.8
Conference rooms 0.6...0.8
Small offices 0.5...0.7
Large offices 0.4...0.8
In accordance with the system selection criteria based on technical data and areas of
application in the "Planning principles" section, the LX high-voltage system is used in the
planning for this example (power distribution in multi-storey buildings with primarily vertical
trunking layout).
Combining the assessment criteria and calculations results in an LXA busbar system being
selected with 5 conductors and full neutral conductor cross section, a current carrying
capacity of 1600 A and a short-circuit rating of Icw (t = 1 s) 60 kA.
Selected busbar system: LXA0551
Tap-off units with 3-pole 250 A fuse switch disconnectors (designed for use with NH1 fuse
links) are used to supply power to the distribution boards on each floor.
Selected tap-off unit: LX-AK5/FS250IEC-3
Further information about planning
7.3 Functional endurance
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7.3 Functional endurance
7.3.1 Applicable regulations
"Fire prevention devices and fire prevention measures" for electrical installations are
required in particular in buildings of special types and used for special purposes. Examples
of these types of building include hospitals and public buildings. DIN VDE 0100-560 relating
to buildings and structures for public use and DIN VDE 0100-710 (previously DIN VDE 0107)
relating to medical locations specify that the electrical installations in such buildings must
maintain functional endurance for specific lengths of time even in the event of a fire. This
requirement affects the following equipment in particular:
● Fire alarm systems
● Systems for alerting and providing instructions to visitors and employees
● Emergency lighting
● Passenger lifts with evacuation circuits that assure functional performance for at least
30 minutes in the incoming cable area under full fire conditions
● Water pressure boosting systems for the supply of extinguishing water
● Ventilating systems of safety stairwells, fire department lifts and machine rooms where
functioning must be guaranteed for at least 90 minutes.
In order to be able to offer the required functional endurance for busbar trunking systems, we
have, for example (in some cases working together with Promat), had the BD2, LD, LX and
LR busbar trunking systems tested successfully at the Materials Testing Institute at
Brunswick in Germany.
During fire testing the busbar trunking systems concerned (housed in Promatect plate
casings of varying thicknesses) were subjected to an external fire load in compliance with
the standard temperature curve (STC) in order to evaluate functional endurance to
DIN 4102-12.
R&
PLQ
˽˽
Figure 7-7 Standard temperature curve (STC) to evaluate functional endurance
Further information about planning
7.3 Functional endurance
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7.3.2 Versions
Components for the functional endurance channel as well as the carrier construction for the
channel and BD2, LD and LX busbar trunking systems are vital to compliance with functional
endurance requirements. The design of the channel (barriers on 4, 3 and 2 sides) and the
carrier construction (fixing with threaded rods or wall-mounted cable brackets) can vary
depending on ambient conditions. Observance of/compliance with the specifications of test
certification issued by planning authorities is mandatory:
● Observance of the maximum permissible clearances between the mounting points, and a
maximum permissible tensile stress of 6 N / mm²
● Only fixing accessories and barrier material/barrier accessories approved by the planning
authorities may be used. This material must be provided by the customer and is not
included in the scope of delivery of the busbar trunking system.
The following versions can be considered:
Functional endurance with barrier on 4 sides
Functional endurance with barrier on 3 sides 1) Functional endurance with barrier on 2 sides 1)
① Busbar system
② Barrier
③ Barrier bonded to joint edges
④ Load distribution plate
⑤ Threaded rod (M12/M16)
⑥ Cable bracket according to statics
⑦ Carrier according to statics
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7.3 Functional endurance
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All the information you need about the nature and types of barrier and component, as well as
a detailed description of carrier constructions, is contained in the planning authority test
certificates. Prior to planning, these test certificates must be requested from the product
manager.
System Functional
endurance
class
Density d
[mm]/PROMATE
CT plate type
Outside dimensions 2) of
the Promat channel
(W [mm] x H [mm])
Reduction factor 3) according to
functional endurance class and
mounting position
Horizontal Vertical
Edgewise
4) Flat
E60 40 / LS 288 x 190 0.75 0.7 0.7 BD2.-160 to 400
E90 50 / LS 308 x 210 0.7 0.65 0.65
BD2-630 to 1250 E90 40 / LS 250 x 300 0.75 0.7 0.7
E60 20/L500 260 x 260 057 (Al)
0.58(Cu)
- 0.56 (Al)
0.54 (Cu)
E90 40/L500 300 x 300 0.5 (Al)
0.52 (Cu)
- 0.5 (Al)
0.48 (Cu)
LDA1 to LDA3/LDC2,
LDC3 (IP34)
E120 60/L500 340 x 340 0.45 (Al)
0.46 (Cu)
- 0.45 (Al)
0.43 (Cu)
E90 20/L500 320 x 260 0.57 - 0.44 (Al)
0.48 (Cu)
LDA4 to LDA8/LDC6 to
LDC8 (IP34)
E120 40/L500 360 x 300 0.5 - 0.4 (Al)
0.43 (Cu)
E60 30 / LS 250 x 250 0.7 0.7 0.7 LX.01, LX.02
E120 50 / LS 290 x 290 0.6 0.6 0.6
E60 30 / LS 250 x 280 0.7 0.7 0.7 LX.03, LX.04
E120 50 / LS 290 x 320 0.6 0.6 0.6
E60 30 / LS 250 x 320 0.7 0.7 0.7 LX.05
E120 50 / LS 290 x 360 0.6 0.6 0.6
LX.06, LX.07 E60 30 / LS 250 x 400 0.7 0.7 0.7
E120 50 / LS 290 x 440 0.6 0.6 0.6
LX.08 E60 30 / LS 250 x 550 0.7 0.7 0.7
E120 50 / LS 270 x 570 0.65 0.65 0.65
E60 30 / LS 250 x 710 0.7 0.7 0.7 LX.09, LX.10
E120 50 / LS 270 x 730 0.65 0.65 0.65
1) Versions with 2 and 3 barriers available for Germany on request.
2) Outside dimensions are valid for versions with 4 barriers. Dimensions for versions with
3 and 2 barriers are available on request.
3) The reduction factors are based on the rated current Ieand an ambient temperature
of 35 °C (24-hour average). In the event of temperature deviations, reduction factors
should be adjusted accordingly.
4) Mounting position horizontal edgewise.
BD2 (trunking unit) LD, LX (trunking conductor)
Further information about planning
7.4 Fireproof barrier
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7.4 Fireproof barrier
German building regulations (or other national regulations) require that buildings are
constructed in such a way as to "prevent the development and spread of fire and fumes and
make possible the rescue of persons and animals as well as fire fighting". Accordingly,
neither fire nor fumes are permitted to spread from one floor or fire area to another.
The BD01, BD2, LD, LX and LR busbar trunking systems can be equipped with fireproof
barriers. Fireproof barriers are generally subject to the device standard IEC/EN 60439-2 and
national regulations, and these can differ from each other. For this reason, we recommend
that you contact your SIEMENS representative in the planning phase.
The systems meet the requirements to prove fire resistance periods as per the fire
resistance class specifications in ISO 834-1 in accordance with IEC/EN 60439-2.
-PD[ r&
Figure 7-8 Conditions for busbar trunking systems
① Permissible temperature increase on components max. 180°C
② Area on fire: Fire in accordance with standard temperature curve DIN 4102, Sheet 2
③ Permissible temperature increase of escaping air max. 140 °C
④ No flammable gases must be allowed to escape. No fumes likely to impair rescue
attempts must be allowed to escape
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7.4 Fireproof barrier
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7.4.1 Versions
Unlike cable trunking, the busbar trunking systems are supplied ex-works with a fireproof
barrier. The fireproofing consists of an inner and outer barrier or an outer barrier only
depending on the busbar trunking system.
The fireproof barriers are compliant with fire resistance classes S60, S90 and S120 in
accordance with DIN 4102-9 dependent upon version and type.
The fireproof barrier can be installed in the busbar trunking system at the factory (BD2, LD,
LX), added on site (BD01, LX, LR) or omitted completely 1) (LR).
1) Please note the section "Special conditions for the German market".
The type of installation is determined by the structure of the busbar trunking system and the
required fire resistance class, as you can see from the overview below (the figures ignore the
minimum clearances between the fireproof barrier and the wall, and the fireproof mortar):
Without external fireproof
barrier, in the center of the
wall/ceiling
With external fireproof
barrier, in the center of the
wall/ceiling
With external fireproof
barrier, in the center of the
wall/ceiling
Examples
BD2 with inner
fire protection S90 for
(wall thickness ≥ 15 cm)
BD2 with inner fire
protection S120 (wall
thickness ≥ 25 cm)
BD2A/BD2C: S120
(wall thickness < 25 cm)
LR: S90 1)
LR: S120 1)
BD01: S90
LD: S120
LX: S120
BD01: S90
(fire protection installed on
both sides)
LX: S120
① Busbar system
② Outer fire barrier
1) Fire protection installed from LR system takes place on-site after sealing the
wall/ceiling with fillers. There is usually no outer fire protection in the wall/ceiling for the
LR system.
Further information about planning
7.4 Fireproof barrier
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Fire resistance classes
System Fire resistance class
S60 S90 S120
BD01 1 1 -
BD2A/BD2C 2 2 3
LDA/LDC 3 3 3
LXA/LXC single systems 3, 4 3, 4 3, 4
LXA/LXC double systems 3 3 3
LRA/LRC 5 6 7
1: Locally installable fire protection kit for S90 and S60 for installation in a solid
wall/ceiling or stud wall.
2: Fire barrier installed in the system at the factory for S90 and S60 for installation in a
solid wall/ceiling.
3: Fire barrier installed in the system at the factory for S120 for installation in a solid
wall/ceiling.
4: Optionally also as a locally installable fire protection kit for S120 for installation in a
solid wall/ceiling.
5: S60 without system-specific fire barrier for installation on solid wall/ceiling. Test
certificates are available.
6: Protective coating to be applied locally for S90 for installation on solid wall/ceiling. Test
certificates are available.
7: Protective coating to be applied locally and fire protection kit for S120 for installation on
solid wall/ceiling.
Special conditions for the German market:
The versions for fire barriers described here were created on the basis of tests passed in
accordance with DIN 4102 Part 9. In Germany, fireproof barriers must possess general
planning authority approval. This is issued by the German Institute for Civil Engineering in
Berlin. All divergences from general planning authority approval must be clarified with the
product manager for the purpose of applying to the competent regional building authority for
agreement in individual cases if necessary.
Fire safety tests have been carried out successfully for the installation of fireproof barriers in
stud walls for the BD01, BD2 and LD systems. Please contact the relevant product manager
for more detailed information about designs and approvals.
Further information about planning
7.4 Fireproof barrier
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7.4.2 Cut-outs
Recommended dimensions for wall and ceiling cut-outs
D
E
System a [cm] b [cm]
BD01 19 13
BD2 (160...400) 27 17
BD2 (630...1250) 27 23
LDA1 - 3/LDC2 - 3 42 42
LDA4-8/LDC6-8 48 42
LXA01../LX01.. 35 34
LXA02../LXC02.. 35 34
LXC03.., LXA04../LXC04.. 35 37
LXA05../LXC05.. 35 41
LXA06../LXC06.. 35 49
LXA07../LXC07.. 35 49
LXA08../LXC08.. 35 64
LXA09../LXC09.., LXA10.. 35 80
LRA01../LRC01.. -
LRA03../LRC03..
19 19
LRA04../LRC04.. 22 22
LRA05../LRC05..,
LRA06../LRC06..
22 25
LRA07../LRC07.. 22 29
LRA08../LRC08.. 22 32
LRA09../LRC09.. 22 34
LRA27../LRC27.. 22 48
LRA28../LRC28.. 22 56
LRA29../LRC29.. 22 64
Further information about planning
7.5 Planning runs
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Note
The area between the busbar wall and the wall cut-out must be filled with mortar or fireproof
material; these must meet applicable requirements with regard to the achievement of fire
resistance class S90/S120.
Note
Minimum clearance
For the installation of SIVACON 8PS busbar systems with fire protection, a minimum
clearance of 5 cm must be maintained between the system/system fire protection and the
structure in the cut-out. This ensures that there is sufficient space to mount the run, the fixing
brackets and for filling with mortar.
7.5 Planning runs
7.5.1 Space requirements for horizontal installation
In order to simplify the mounting of the trunking units and the tap-off units, provision needs to
be made for minimum dimensions between the runs and the building structure during
planning.
Minimum dimensions for busbar trunking systems with and without tap-off units including
system-compliant fixing brackets mounted horizontally on cable racks or wall-mounted cable
brackets:
E
D
G
F
Busbar trunking systems without tap-off
units (horizontal installation)
Busbar trunking systems with tap-off
units (horizontal installation)
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Space requirements
Clearances1) System
a [cm] b2) [cm] c [cm] d3) [cm]
BD2 (160 – 400) 10 16 (20) 30 62
BD2 (630 – 1250) 10 28 (24) 30 68
LDA1 - 3/LDC2 - 3 10 36 35 100
LDA4 - 8/LDC6 - 8 10 36 38 100
LXA01../LXC01.. 10 24 (24) 38 123
LXA02../LXC02.. 10 24 (24) 38 123
LXC03.. 10 27 (24) 38 126
LXA04../LXC04.. 10 27 (24) 38 126
LXA05../LXC05.. 10 31 (24) 38 130
LXA06../LXC06.. 10 39 (24) 38 138
LXA07../LXC07.. 10 39 (24) 38 138
LXA08../LXC08.. 10 54 (24) 38 153
LXA09../LXC09.. 10 70 (24) 38 169
LXA10.. 10 70 (24) 38 169
LRA01../LRC01.. -
LRA03../LRC03..
10 59 (62) —4) —
4)
LRC04.. 10 62 (62) —4) —
4)
LRA05../LRC05.. -
LRA06../LRC06..
10 65 (62) —4) —
4)
LRA07../LRC07.. 10 69 (62) —4) —
4)
LRA08../LRC08.. 10 72 (62) —4) —
4)
LRA09../LRC09.. 10 74 (62) —4) —
4)
LRA27../LRC27.. 10 88 (62) —4) —
4)
LRA28../LRC28.. 10 94 (62) —4) —
4)
LRA29../LRC29.. 10 98 (62) —4) —
4)
1) Clearances are valid for horizontal edgewise mounting of the trunking conductors without
taking the enclosure dimensions of incoming cable connection units into account.
2) The dimensions in brackets are valid for horizontal flat mounting of the trunking
conductors without taking the enclosure dimensions of incoming cable connection units into
account.
3) Clearances are dependent upon the dimensions of the tap-off units. Dimensions
are available on request for horizontal flat mounting of trunking units and
suspended tap-off units.
4) Clearances are dependent upon the dimensions of the tap units. Data on
request.
Further information about planning
7.5 Planning runs
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7.5.2 Space requirements for vertical installation
Minimum dimensions for busbar trunking systems with and without tap-off units. The system-
specific fixing brackets (not illustrated) have been taken into account in the dimensions
specified.
D
G
H
F
D
E
Busbar trunking systems with tap-off units
(vertical installation)
Busbar trunking systems without tap-off units
(vertical installation)
Space requirements
Clearances 1) System
a [cm] b2) [cm] c [cm] d4) [cm] e [cm]
BD2A/BD2C (160 – 400) 5 2) (3) 3) 19 10 116 30
BD2A/BD2C (630 – 1250) 5 2) (3) 3) 31 10 120 30
LDA1 - 3/LDC2 - 3 10 2) (2) 3) 46 10 146 35
LDA4 - 8/LDC6 - 8 10 2) (2) 3) 46 10 146 38
LXA01../LXC01.. 10 2) (6) 3) 27 15 130 38
LXA02../LXC02.. 10 2) (6) 3) 27 15 130 38
LXC03.. 10 2) (6) 3) 30 15 140 38
LXA04../LXC04.. 10 2) (6) 3) 30 15 140 38
LXA05../LXC05.. 10 2) (6) 3) 34 15 140 38
LXA06../LXC06.. 10 2) (6 )3) 42 15 150 38
LXA07../LXC07.. 102) (6) 3) 42 15 150 38
LXA08../LXC08.. 10 2) (6) 3) 57 15 170 38
LXA09../LXC09.. 10 2) (6) 3) 73 15 180 38
LXA10.. 10 2) (6) 3) 73 15 180 38
LRA01../LRC01.. -
LRA03../LRC03..
10 2) 69 10 —5) —
5)
LRC04.. 10 2) 72 10 —5) —
5)
LRA05../LRC05.. -
LRA06../LRC06..
10 2) 75 10 —5) —
5)
Further information about planning
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Clearances 1) System
a [cm] b2) [cm] c [cm] d4) [cm] e [cm]
LRC07.. 10 2) 79 10 —5) —
5)
LRC08.. 10 2) 82 10 —5) —
5)
LRC09.. 10 2) 84 10 —5) —
5)
LRC27.. 10 2) 98 10 —5) —
5)
LRC28.. 10 2) 104 10 —5) —
5)
LRC29.. 10 2) 108 10 —5) —
5)
1) The enclosure dimensions of incoming cable connection units have not been taken into account.
2) Clearances apply as minimum dimensions taking into account the recommended cut-out
dimensions for fireproof barriers in the ceiling and flush connection between the cut-out and the
wall.
3) The reduced dimensions in brackets apply for trunking units without fireproof barriers and are
based on space requirements for vertical fixing brackets. If local conditions vary, fillers will need to
be used on site.
4) Clearances are dependent upon the dimensions of the tap-off units. The dimensions specified apply
for the available tap-off units max. size. Dimensions for smaller sizes are available on request.
5) Clearances are dependent upon the dimensions of the junction boxes. Data on request.
7.5.3 Fixing brackets for vertical mounting
System-specific fixing brackets have to be used to mount the trunking units.
System Type of bracket Function Fixing distances2)
Fixing bracket with weight
carrying capacity (-BVW)
Support of weight of run
For wall mounting
For ceiling mounting (-BDV)
7.5 m: up to 400 A
5 m: 630 A
4 m: 800 A...1000 A
3.25 m: 1250 A
BD2A/BD2C1)
Fixing bracket with weight
carrying capacity (-BVF)
Support of weight of run
For wall mounting
At every joint block
connecting flange (max. 3.25
m)
Further information about planning
7.5 Planning runs
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System Type of bracket Function Fixing distances2)
Spacer brackets (-BD) for
busbar runs and distance
compensation
Spacer (-DSB)
Fix clearance from building
For wall mounting
Dependent upon local
conditions and planning
LDA/LDC1)
Fixing bracket with weight
carrying capacity (-BV)
Support of weight of run
For wall mounting
At every trunking unit (max.
3.20 m)
Fixing bracket with weight
carrying capacity (-BV, -BV-
AK)
Support of weight of run
Permit proper movement
For wall mounting
For ceiling mounting (-BDV)
At an average storey height
of 3.40 m to 3.90 m 1
bracket per storey
LXA/LXC
Fixed point bracket
Fixing the run to the building
For wall mounting
Dependent upon local
conditions and planning
Further information about planning
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System Type of bracket Function Fixing distances2)
Fixing bracket with weight
carrying capacity (-BVW)
Support of weight of run
Permit proper movement
For wall mounting
For ceiling mounting (-BVD)
At an average storey height
of 3.40 m to 3.90 m 1
bracket per storey
Fixed point bracket (-BF)
Fixing the run to the building
For wall mounting
For ceiling mounting (-BVD)
Dependent upon local
conditions and planning
LRA/LRC
Sliding bracket (-BGW)
Fix clearance from building
Permit proper movement
For wall mounting
Dependent upon local
conditions and planning
1) Fixed point brackets are not required due to the type of system.
2) These are recommendations for planning. Please refer to the planning guidelines for
max. permissible fixing distances.
Further information about planning
7.5 Planning runs
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7.5.4 Fixing brackets for horizontal installation
System Type of bracket Function Fixing distances2)
BD2A/BD2C1)
Fixing bracket (-BB)
Run supported or borne
For wall mounting
For ceiling mounting using U-supports
or H-supports
For wall mounting using spacers
For fixing on walls and pipe cable
brackets
3.25 m: up to 630 A (1 x mount
per trunking unit)
2.5 m: up to 1000 A
For BD2C and mounting using
spacer brackets see Technical
data (Page 65)
Suspension bracket (-B.)
Bearing the weight of the run
For mounting on U-supports or
H-supports
1 x mount per trunking unit for
LDA up to 4000 A and LDC up to
4400 A (IP34)
2 m for 5000 A (IP34)
LDA/LDC 1)
Terminal clamp (supplied
by the customer)
For fixing on walls and pipe cable
brackets
As suspension bracket
Fixing bracket with weight
carrying capacity (-BH, -
BF, -K)
Support of weight of run
Permit proper movement
For mounting (-B.) on ceilings using
threaded rods
Mounting (-K) on wall using wall and
pipe cable brackets
2 m
LXA/LXC
Fixed point bracket
(-BHF, -BFF, -KF)
Fixing the run to the building
For wall and ceiling mounting (-B.F)
For mounting on fixed point consoles
(-KF)
Dependent upon local conditions
and planning
Further information about planning
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System Type of bracket Function Fixing distances2)
Fixing bracket with weight
carrying capacity (-BVW)
Support of weight of run
Permit proper movement
For wall mounting
For ceiling mounting (-BVD)
1.5 m
LRA/LRC
Fixed point bracket Fixing the run to the building
For wall mounting
For ceiling mounting
Dependent upon local conditions
and planning
1) Fixed point brackets are not required due to the type of system.
2) These are recommendations for planning. Please refer to the technical data tables for max.
permissible fixing distances.
Further information about planning
7.5 Planning runs
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7.5.5 Carrier constructions
The variety of local structural conditions is reflected in the large number of different technical
options for carrier constructions. The most common of these are listed below:
Mounting type Description
Ceiling: suspended installation
① Threaded rods or C profiles
② C profiles or top plates
③ Dowel
④ Terminal clamp
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Mounting type Description
Wall: supported installation
Various beams in accordance with
static requirements
Floor: elevated installation
Most floor-mounted constructions
consist of C profiles with connectors or
profiles and appropriate accessories.
For more information about system mounting, please refer to the relevant project planning
and installation manuals.
Further information about planning
7.6 Magnetic fields
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7.6 Magnetic fields
General information
Due to their physical characteristics, busbars designed for power distribution and
transmission generate pulsating electromagnetic fields in their vicinity with a fundamental
frequency of 50 Hz. These magnetic fields can impair the ability of sensitive equipment such
as computers or metering instruments to function in full working order.
Limits
EMC directives and the associated standards do not set out requirements or
recommendations for the planning of busbar trunking systems. DIN VDE 0100-710 can be
consulted in relation to busbar trunking systems used in hospitals.
DIN VDE 0100-710 defines limits for line frequency magnetic fields in hospitals. For
example, at 50 Hz, the magnetic induction around a patient's bed must not exceed the
following values:
B= 2 x 10-7 tesla for EEG
B= 4 x 10-7 tesla for ECG
The limit for inductive interference between multi-core cables and lines in a high voltage
installation (conductor cross section > 185 mm2) and the patient beds to be protected is
significantly undershot if the minimum clearance of 9 m recommended in DIN VDE 0100-710
is complied with.
When using busbars, this clearance can generally be reduced, since the busbar systems are
designed to effectively reduce the magnetic interference fields in the local vicinity.
Magnetic field measurements
However, in order to facilitate evaluation of the busbars to be used, extensive magnetic field
measurements have been taken in accordance with EN 60439-2. The magnetic field
emissions of the busbar systems were measured on a straight trunking run 9.0 m long. With
the busbars under a balanced rated current load, the magnetic fields were measures in eight
directions at intervals of 0.1 m and up to a clearance of 1 m.
Figure 7-9 Coordinate system for magnetic field measurement
Further information about planning
7.6 Magnetic fields
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Figure 7-10 BD2 magnetic fields for systems Al 250 A, 400 A, Cu 1250 A
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Figure 7-11 BD2 load distance profile for 0.2 μT of systems Al 250 A, 400 A, Cu 1250 A
Further information about planning
7.6 Magnetic fields
SIVACON 8PS - Planning with SIVACON 8PS
Planning Manual, 09/2011, A5E01541101-02 277
'LVWDQFHP
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Figure 7-12 LDA magnetic fields for systems Al 1250 A, 2500 A and 4000 A
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Figure 7-13 LDA magnetic fields for 0.2 μT of systems Al 1250 A, 2500 A and 4000 A
Further information about planning
7.6 Magnetic fields
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'LVWDQFHP
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Figure 7-14 LXA magnetic fields for systems 800 A, 1600 A and 2500 A
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Figure 7-15 LXA load distance profile for 0.2 μT of systems 800 A, 1600 A and 2500 A
Further information about planning
7.6 Magnetic fields
SIVACON 8PS - Planning with SIVACON 8PS
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'LVWDQFHP
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Figure 7-17 LXC load distance profile for 0.2 μT of systems 1000 A, 2000 A and 3200 A
Diagrams for other sizes and for the LR system are available on request.
Further information about planning
7.7 Sprinkler test
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7.7 Sprinkler test
General information
Sprinkler systems are used for fire prevention and protection in buildings and industrial
facilities. Sprinkler systems are automatic fire extinguishing systems. They are designed to
detect the outbreak of fire at an early stage and extinguish it as quickly as possible. Once
activated for the purpose of extinguishing fire, such systems usually run for at least 30
minutes.
The BD2, LD and LX busbar trunking systems are subjected to a sprinkler test. In the
absence of a binding standard, the tests were carried out based on a test structure reflecting
practical application (see diagram).
Test results
BD2 and LX
All mounting positions of the BD2 and LX busbar trunking systems were tested for water
resistance in IP54 degree of protection on the basis of the national risk prevention guidelines
for sprinkler systems issued in Germany. Insulation resistance measurements were taken
before and after the 90-minute sprinkling period and a high-voltage test was carried out in
accordance with EN 60439-2. The equipment passed the test, proving that the busbar
system can be put back into operation immediately and without delay once the sprinkler
system has run its course.
LD
The LD busbar system with IP34 degree of protection and the associated tap-off units with
IP54 protection were sprinkled with both horizontal and vertical trunking runs with a 3/4"
umbrella sprinkler and a 1/2" flat spray sprinkler at a water pressure of 6 bar. In order to be
able to assess electrical performance during testing, insulation resistance measurements
were taken during the course of the test. No operational failures occurred.
Even when subject to extreme water loads such as those associated with sprinkler systems,
the LD busbar system is able to remain in full working order. This operational reliability is
made possible on the one hand by the generous creepages and clearances and on the other
by the fact that water can drain away unhindered.
Further information about planning
7.7 Sprinkler test
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EDU
① Sprinkler
② Pressure gauge
③ Shut-off valve
④ Tap-off unit
⑤ Trunking unit
Figure 7-18 Diagram of sprinkler test
Further information about planning
7.8 Tools and services
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7.8 Tools and services
SIMARIS design
Software tool for fast, effective network designing and dimensioning of electrical power
distribution for utility and industrial buildings from the medium voltage supply to the load:
● Dimensioning of electrical systems on the basis of real products in accordance with the
state of the art and applicable standards (VDE, IEC)
● Automatic selection of the appropriate components from the stored product database
● Option of saving frequently required modules in the Favourites library
● High level of planning reliability coupled with flexibility in the planning and implementation
process
● Option of automatic selectivity assessment with the professional version: selectivity limits
are automatically displayed in addition to the current-time curve and the relevant
envelope curves
Figure 7-19 SIMARIS design
Further information about planning
7.8 Tools and services
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SIMARIS project
Software tool for fast calculation of space requirements and the electrical power distribution
budget for utility and industrial buildings, as well as the drafting of tender specifications:
● Automatic selection and positioning of the suitable systems using the parameters entered
● Quick overview of space requirements and budget
● System-wide planning from the medium voltage supply to the distribution board
● Easy adaptation of the project planning in specific cases, even with changes of use or
expansions
● Saving of planned systems in the Favourites library for further use in similar projects
● Automatic generation of specifications for planned systems
Figure 7-20 SIMARIS project
Further information about planning
7.8 Tools and services
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SIMARIS curves
Software tool for visualizing and evaluating characteristic curves of low-voltage protective
devices and fuses (IEC) including the option of simulating device settings:
● Visualisation of tripping characteristics, let-through currents, and let-through energy
characteristics
● Devices selected using order number or by entering known technical data via the
selection aids
● Saving of frequently required devices as favourites
● Saving of several characteristic curves including selected settings as overall project
Figure 7-21 SIMARIS curves
Further information about planning
7.8 Tools and services
SIVACON 8PS - Planning with SIVACON 8PS
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Further information for electrical power distribution
You can find additional information on the Internet under:
Figure 7-22 Start page "Electrical power distribution with Totally Integrated Power (TIP)"
Totally Integrated Power
The SIVACON 8PS busbar trunking systems are part of the comprehensive product portfolio
of Totally Integrated Power, the Siemens solution for system-wide electrical power
distribution in industrial applications, infrastructure, and buildings. With technical manuals
and software tools for planning power distribution, as well as online tender specifications, we
support you in the different planning phases.
You will find all these documents and information on our start page www.siemens.com/tip.
Further information about planning
7.8 Tools and services
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Glossary A
The manufacturers of low-voltage switchgear and controlgear assemblies specify rated
values in compliance with DIN EN 60439-1. These rated values apply to specified operating
conditions and characterise the suitability of a switchgear assembly. The rated values must
always be referred to when combining equipment or configuring switchgear and controlgear
assemblies.
Rated short-time withstand current (Icw) DIN EN 60439-1; 4.3
As the rms value of the short-circuit current, the rated short-time withstand current
characterises the thermal strength of a switchgear and controlgear assembly circuit under a
transient load. The rated short-time withstand current is normally determined for a duration of
1 s; divergent time values must be specified. The rated short-time withstand current is
specified for the trunking and/or main busbars of a switchgear and controlgear assembly.
Rated peak withstand current (Ipk) DIN EN 60439-1; 4.4
As the peak value of the impulse current, the rated peak withstand current characterises the
dynamic strength of a circuit in a switchgear and controlgear assembly. The rated peak
withstand current is specified for the trunking and/or main busbars of a switchgear and
controlgear assembly.
Rated conditional short-circuit current (Icc) DIN EN 60439-1; 4.5
The conditional rated short-circuit current corresponds to the uninfluenced short-circuit
current that a circuit in a switchgear and controlgear assembly, protected by a short-circuit
protective device, can carry without damage (for a certain time). The conditional rated short-
circuit current is therefore specified for tap-off units and/or infeeds with circuit breakers, for
example.
Rated impulse withstand voltage (Uimp) DIN EN 60947-1; 4.3.1.3
This is a measure of the strength of the air paths in the interior of the switchgear in relation to
transient overvoltages. Suitable switchgear can be used to ensure that deactivated parts of a
system cannot transmit overvoltages from the line on which they are used.
Glossary
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Rated current (In) (of a circuit of a switchgear and controlgear assembly) DIN EN 60439-1; 4.2
The rated current of a circuit of a switchgear and controlgear assembly is specified by the
manufacturer and depends on the rated values of the individual items of electrical equipment
in the circuit within the switchgear and controlgear assembly, their arrangement, and type of
use. The circuit must be able to carry the rated current without the overtemperatures on the
individual components exceeding the limit values defined in 7.3 (table 2) when tested
according to 8.2.1.
Rated current (In) (of a circuit breaker) DIN EN 60947-2; 4.3.2.3
The current that is identical, for the circuit breaker, to the rated continuous current and the
conventional thermal current.
➜ Rated uninterrupted current
Rated control voltage (Uc) DIN EN 60947-1; 4.5.1
This is the voltage that is applied to the normally-open actuation contact in a control circuit. It
may deviate from the rated control supply voltage due to transformers or resistors in the
switching circuit.
Rated conditional service short-circuit breaking capacity (Ics) DIN EN 60947-2; 4.3.5.2.2
The short-circuit current dependent on the rated operating voltage that a circuit breaker is
capable of repeatedly breaking (test O - CO - CO, previously P - 2). After short-circuit
breaking, the circuit breaker is able to continue carrying the rated current with increased
intrinsic heating and can trip under an overload.
➜ Rated uninterrupted current; Rated operating voltage
Rated operating power DIN EN 60947-1; 4.3.2.3
The power that a switching device can switch at the assigned rated operating voltage in
compliance with the utilisation category, e.g. circuit breaker utilisation category AC 3: 37 kW
at 400 V.
Rated operating voltage (Ue) DIN EN 60947-1; 4.3.1.1
Voltage to which the characteristic values of a switching device apply. The highest rated
operating voltage must never be higher than the rated insulation voltage.
➜ Rated insulation voltage
Rated operating current (Ie) DIN EN 60947-1; 4.3.2.3
The current that a switching device can carry, taking into account the rated operating
voltage, the operating duration, the utilisation category and the ambient temperature.
➜ Rated operating voltage
Glossary
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Rated uninterrupted current (Iu) DIN EN 60947-1; 4.3.2.4
The current that a switching device can carry during continuous operation (for weeks,
months or years).
Rated making capacity DIN EN 60947-1; 4.3.5.2
The current that a switching device can make in compliance with the utilisation category at
the respective rated operating voltage.
➜ Rated operating voltage
Rated frequency DIN EN 60947-1; 4.3.3
The frequency for which a switching device is designed and on which the other characteristic
data is based.
➜ Rated operating voltage; Rated uninterrupted current
Rated ultimate short-circuit breaking capacity (Icu) DIN EN 60947-2; 4.3.5.2.1
The maximum short-circuit current that a circuit breaker is capable of breaking (test O - CO,
previously P - 1). After short-circuit breaking, the circuit breaker is capable of tripping under
an overload, with increased tolerances.
Rated insulation voltage (Ui) DIN EN 60947-1; 4.3.1.2
Voltage to which insulation tests and creepage paths apply. The highest rated operating
voltage must never be higher than the rated insulation voltage.
➜ Rated operating voltage
Rated short-circuit breaking capacity (Icn) DIN EN 60947-1; 4.3.6.3
The highest current that a switching device can break at rated operating voltage and
frequency without damage. It is specified as an rms value.
➜ Rated operating voltage
Rated short-circuit making capacity (Icm) DIN EN 60947-1; 4.3.6.2
The highest current that a switching device can make at a specific rated operating voltage
and frequency without damage. Contrary to the other characteristic data, it is specified as a
peak value.
➜ Rated operating voltage
Conditional short-circuit current, rated DIN EN 60947-1; 2.5.29
➜ Rated conditional short-circuit current (Iq)
Glossary
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Index
4
4-conductor system
Technical data, 233, 234, 235, 239, 240, 241
5
5-conductor system
Technical data, 236, 237, 238, 242, 243, 244
A
Additional equipment, 63, 129, 171, 230
Advance planning, 30
Anti-rotation feature, 124
Approval documentation, 19
Areas at risk of fire, 252
Areas of application, 13, 36
AS-i, 11
Assembly components, 166
B
BD01 system, 10, 17
Bus line, 21
Bus systems, 11
C
Cable, 28
Cable cluster, 28
Cable compartment, 49, 125, 126
Cable loads, 28
Cable trunking, 28
Cast resin LRC, 12
CD-K system, 10, 13
Certificates, 40, 109, 153, 216
Clean earth, 35
Clean room technology, 13
Conditional short circuit rating Icc, 33
Conditional short-circuit rating Icc, 170
Conductor configurations, 44, 111, 158, 221
Conductor cross sections
For feeder units and incoming supplies, 73, 139,
203
For tap-off units, 75, 204
Conductor material, 40, 108, 153, 215
Connection method, 15, 18, 108, 153, 215
Connection units for transformers and distribution
boards, 121, 164, 226
Consideration of busbar layout, 31
Contact mechanism, 124, 166
Coupling units, 53, 123
Creation of a specification, 31, 40, 108, 152, 215
Current carrying capacity, 28, 157, 220
Cut-outs, 264
D
Declarations of conformity, 40, 109, 153, 216
Degrees of protection, 252
Degrees of protection for busbar trunking systems, 252
Degrees of protection for electrical equipment
Overview, 253
Demand factor, 256
Department stores, 13
Derating, 35, 41, 109, 157, 220
Determining the rated current, 257
Determining the voltage drop, 247
Dimensioning, 247
Dimensioning software, 12, 282
Distribution board feeder, 52
Distribution board link, 119, 162, 225
Distribution systems (network structures), 254
Double busbar trunking system
Technical data, 235, 238, 241, 244
Draft planning, 30
E
Early-make PE/PEN, 124
EIB, 11
Electromagnetic interference, 28, 275
Electronic loads subject to harmonics, 36
End caps, 129, 171
Expansion compensation, 108, 115, 152, 215
Index
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F
Feeder units, 49, 52, 119, 162, 225
Fire load, 67, 69, 70, 72, 131, 132, 133, 134, 135, 136,
137, 138, 202
Fire protection, 19, 258
Fire resistance class, 262
Fireproof barrier, 261
Fixing bracket
for horizontal mounting, 271
for vertical mounting, 268
Fixing distances, max., 33, 67, 131, 202
Flexible movable trunking units, 48
Functional endurance, 28, 258
H
Halogen-free materials, 28
Height rises
Vertical, 109
Horizontal mounting, 271
I
Incoming cable connection unit, 122, 165, 228
Increased degree of protection, 109
Installation, 31
Interference potentials, 36
J
Joint block, 171, 230
Junction units, 46, 117, 223
L
Laying criteria, 28
Laying method, 28
Lighting installations, 13
Linking of distribution boards, 119, 162, 225
Load distribution factor, 247
Load factor, 256
Load feeders up to 1250 A, 12
Loop impedance, 252
M
Magnetic field measurements, 275
Magnetic fields, 35, 275
Mandatory requirement, 27
Manual operating mechanism, 127
Max. fixing distances, 33, 67, 131, 202
Meshed networks, 37
Motor drive, 128
Mounting position, 109, 157, 220
Multi-core entry, 49, 122, 165, 166, 228
N
Network structures, 254
Network topology, 28
Networked busbar trunking systems, 11, 20
Neutral and PE cross section, 44, 67, 131, 155, 158,
174, 221
Neutral conductor (N or 2N), 33
Neutral conductor overload, 36
Neutralisation condition, 28
No. of conductors, 41, 109
Non-interchangeability, 124
Non-Siemens distribution boards, 120, 163, 225
O
Outdoor applications, 12
Overload protection, 251
P
PE connection facility
Separate, 166
Permissible voltage drop, 247
Planning concept for a power supply, 24
Planning costs, 10
Planning example, 256
Planning runs, 265
Plug-in quick connector, 15
Power distribution, 27
Power distribution board, 256
Power supply
Planning concept, 24
Power supply concept, 28
Power tap-off, 124, 166, 229
Via joint block, 168
Power transmission, 26
Preliminary technical descriptions for specifications, 40,
108, 152, 215
PROFIBUS, 11
Protection equipment, 251
Protective devices, 251
PVC-free materials, 28
Index
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R
Rated currents of standard transformers, 32
Resistances in the hot state, 247
Retrofitting, 28
Ring networks, 37
S
Sandwich construction, 157
Selection of systems, 33
Selection on the basis of rated transformer data, 37
Separate PE connection facility, 166
Short-circuit currents of standard transformers, 32
Short-circuit protection, 251
Short-circuit rating, 37
Short-circuit voltage Ukr, 32
SIMARIS design, 12, 282
Single busbar system
Technical data, 233, 234, 236, 237, 239, 240, 242,
243
Single-core entry, 49, 51, 122, 165, 166, 228
Sizes, 17, 44, 111, 156, 219
Small consumers, 13
Space requirements, 265
Specification texts BD2, 40
Specification texts LDA/LDC, 108
Specification texts LRA/LRC, 215
Specification texts LXA/LXC, 152
Spring clamp, 172
Sprinkler test, 280
Standard temperature curve (STC), 258
Standard transformers
Rated currents, 32
Short-circuit currents, 32
Storage facilities, 13
Straight trunking units, 45, 114, 159, 222
Suspension bracket, 271
System overview BD01, 17
System overview CD-K, 13
System sizing, 30
T
Tap-off plugs, 15
Tap-off point, 13, 17, 27, 116
Tap-off points can be selected on both sides, 159
Tap-off points can be selected on one side, 159
Tap-off units, 54, 124, 166
Tap-off units for permanent installation, 168
Technical data
BD2, 65
LD, 130
LR, 232
LX, 174
Terminal clamp, 171
Troubleshooting, 28
TTA, 26
Type code, 42, 110, 155, 218
Type-tested connection to distribution boards and
transformers, 12
V
Vertical height rises, 109
Vertical mounting, 268
Voltage drop, 247
Voltage drop diagrams, 247
W
Wall bracket, 268
Wall cut-out, 264
Warehouses, 13
www.siemens.com/lowvoltage
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Order No.: A5E01541101-02
© Siemens AG 2011
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