1 ___________________ Introduction 2 ___________________ General information SENTRON Switch disconnectors 3KD switch disconnector Manual 3 ___________________ Product description 4 ___________________ Product line, product group 5 ___________________ Function and operation 6 ___________________ Assembly and mounting 7 ___________________ Connection and wiring 8 ___________________ Further accessories 9 ___________________ Maintenance 10 ___________________ Technical data Dimension drawings and 11 ___________________ hole drilling templates A ___________________ Appendix B ___________________ List of abbreviations C ___________________ Conversion tables 10.2018 L1V30490761A-02 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 indicates that minor personal injury can result if proper precautions are not taken. NOTICE indicates that property damage can result if proper precautions are not taken. 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 (R) 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 Division Energy Management Postfach 32 20 91050 ERLANGEN GERMANY Document order number: 3ZW1012-0KD16-0AC1 09/2018 Subject to change Copyright (c) Siemens AG 2017. All rights reserved Table of contents 1 Introduction ................................................................................................................................................ 9 2 General information ................................................................................................................................. 11 2.1 3 Product description .................................................................................................................................. 13 3.1 4 5 7 Function, performance features, application areas ................................................................13 Product line, product group ...................................................................................................................... 15 4.1 4.1.1 4.1.2 4.1.3 4.1.4 3KD switch disconnector ........................................................................................................15 Frame sizes ............................................................................................................................16 Type of mounting ....................................................................................................................17 Connection ..............................................................................................................................18 Operating mechanism / handle ...............................................................................................19 4.2 4.2.1 4.2.2 4.2.3 4.2.4 4.2.5 4.2.6 Accessories.............................................................................................................................21 Additional poles.......................................................................................................................21 Direct operating mechanism ...................................................................................................22 Door-coupling rotary operating mechanism ............................................................................23 Auxiliary switches....................................................................................................................24 Phase barriers.........................................................................................................................25 Cable connection covers ........................................................................................................26 4.3 4.3.1 4.3.2 Exploded views .......................................................................................................................27 Exploded views for frame size 1 and 2 ...................................................................................27 Exploded views for frame size 3, 4 and 5 ...............................................................................28 4.4 Article number structure ..........................................................................................................29 Function and operation ............................................................................................................................ 31 5.1 6 General information ................................................................................................................11 Manual operation ....................................................................................................................31 Assembly and mounting .......................................................................................................................... 33 6.1 Assembly of parts in scope of delivery ...................................................................................33 6.2 Mounting position ....................................................................................................................34 6.3 6.3.1 6.3.2 6.3.3 Floor mounting ........................................................................................................................35 Frame size 1 and 2 .................................................................................................................35 Frame size 3 and 4 .................................................................................................................37 Frame size 5 ...........................................................................................................................39 6.4 Mounting on DIN rails .............................................................................................................40 Connection and wiring ............................................................................................................................. 43 7.1 7.1.1 7.1.2 7.1.3 Main circuit connection ...........................................................................................................43 Approved circuit diagrams ......................................................................................................43 Box terminal ............................................................................................................................45 Flat terminal ............................................................................................................................47 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 5 Table of contents 8 9 7.1.4 7.1.5 7.1.5.1 7.1.5.2 Connecting bridges ................................................................................................................ 50 Wiring accessories ................................................................................................................. 50 Phase barriers ........................................................................................................................ 50 Cable connection covers........................................................................................................ 55 7.2 7.2.1 7.2.1.1 7.2.1.2 Auxiliary circuit connection..................................................................................................... 57 Auxiliary switches ................................................................................................................... 57 Auxiliary switches of frame size 1 and 2 ................................................................................ 57 Auxiliary switches for frame size 3, 4 and 5 ........................................................................... 58 7.3 7.3.1 7.3.2 Contact numbers .................................................................................................................... 58 Main circuit ............................................................................................................................. 58 Auxiliary switches ................................................................................................................... 59 Further accessories ................................................................................................................................. 63 8.1 8.1.1 8.1.1.1 8.1.1.2 8.1.2 8.1.2.1 8.1.2.2 Auxiliary switches ................................................................................................................... 63 Installation of auxiliary switches ............................................................................................. 66 Frame sizes 1 and 2 .............................................................................................................. 66 Frame sizes 3, 4 and 5 .......................................................................................................... 67 Enabling / disabling of test function ....................................................................................... 69 Frame sizes 1 and 2 .............................................................................................................. 70 Frame sizes 3, 4 and 5 .......................................................................................................... 71 8.2 8.2.1 8.2.2 8.2.2.1 8.2.2.2 8.2.3 8.2.4 Additional poles ...................................................................................................................... 73 Versions of available poles .................................................................................................... 73 Possible assembly positions for additional poles and auxiliary switch modules ................... 74 Frame sizes 1 and 2 .............................................................................................................. 74 Frame sizes 3, 4 and 5 .......................................................................................................... 76 Assembly of additional poles ................................................................................................. 78 Removing the jumper at N terminal ....................................................................................... 82 8.3 8.3.1 8.3.2 8.3.3 8.3.3.1 8.3.3.2 Direct operating mechanism .................................................................................................. 84 Versions ................................................................................................................................. 84 Padlocking.............................................................................................................................. 85 Assembling............................................................................................................................. 86 Frame sizes 1 and 2 .............................................................................................................. 86 Frame sizes 3, 4 and 5 .......................................................................................................... 88 8.4 8.4.1 8.4.2 8.4.3 8.4.4 8.4.5 8UD1 door-coupling rotary operating mechanism ................................................................. 90 Component overview ............................................................................................................. 91 Delivery forms and versions................................................................................................... 92 Assembly................................................................................................................................ 92 Functions and operation ...................................................................................................... 101 Accessories for 8UD1 .......................................................................................................... 111 Maintenance .......................................................................................................................................... 115 9.1 10 Maintenance......................................................................................................................... 115 Technical data ....................................................................................................................................... 117 10.1 3-pole and 4-pole versions of 3KD switch disconnectors .................................................... 117 10.2 6 pole versions of 3KD switch disconnectors for DC 1200 V .............................................. 123 10.3 10.3.1 10.3.2 Technical data of accessories for 3KD ................................................................................ 127 Additional poles .................................................................................................................... 127 Auxiliary switches ................................................................................................................. 127 3KD switch disconnector 6 Manual, 10.2018, L1V30490761A-02 Table of contents 11 A Dimension drawings and hole drilling templates .................................................................................... 129 11.1 Distance to grounded parts and between two 3KD ..............................................................129 11.2 Drilling templates ..................................................................................................................131 11.3 Dimensional drawings ...........................................................................................................134 Appendix................................................................................................................................................ 155 A.1 B List of abbreviations ............................................................................................................................... 157 B.1 C Standards and approvals ......................................................................................................155 Table of abbreviations ..........................................................................................................157 Conversion tables .................................................................................................................................. 159 Glossary ................................................................................................................................................ 163 Index ...................................................................................................................................................... 167 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 7 Table of contents 3KD switch disconnector 8 Manual, 10.2018, L1V30490761A-02 1 Introduction Purpose of this manual This manual describes the basic functions of the "switch disconnector" range of switching devices. It contains information about: Selection Configuring Commissioning Target group Planners, installation personnel, configuring engineers. Required basic knowledge A general knowledge of low-voltage controls and distribution is required to understand this manual. Used symbols The following table explains the meaning of the various symbols used within this document: Symbol Meaning Symbol Meaning Pincer pliers File Allen wrench Touch handling Crosstip screwdriver PZ Lock Hex tip screwdriver Click to snap Burin Solid conductor 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 9 Introduction Symbol Meaning Symbol Meaning Crosstip screwdriver PH Stranded conductor Slot screwdriver Fine stranded conductor with end sleeve Trash bin Busbar Cut off in the trash bin Dismantle of busbar OK Dismantle of solid conductor Not OK Dismantle of solid conductor with end sleeve Measure Dismantle of solid conductor with end sleeve without insulating collars Handsaw 3KD switch disconnector 10 Manual, 10.2018, L1V30490761A-02 General information 2.1 2 General information Definitions of switch disconnector 3KD switch disconnectors are used as main EMERGENCY-STOP or maintenance switches. They ensure activation and deactivation of the specified rated current under load. At the same time they constitute a safety isolation function and isolating distance in all low-voltage circuits. For standards, directives, certifications and environmental compatibility, please see appendix. Safety note DANGER Hazardous voltage. Will cause death or serious injury. Turn off and lock out all power supplying this device before working on this device. NOTICE Qualified personnel. Installation and maintenance must be carried out by qualified personnel. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 11 General information 2.1 General information 3KD switch disconnector 12 Manual, 10.2018, L1V30490761A-02 Product description 3.1 3 Function, performance features, application areas Function The 3KD switch disconnector is used to make, carry, and break rated currents up to 1600 A. Performance features 3-pole and 4-pole versions for AC and DC applications 6-pole DC switch for high DC voltages 5 frame sizes from 16 A to 1600 A Modular retrofitting of additional poles(4th contact element, N or N-PE pole) Different operating mechanism designs Manual operation from the side or front Locking function for handle Floor mounting or mounting on standard mounting rail Application areas The 3KD switch disconnector is suitable for the following branches of industry: Process and basic industries Manufacturing industry Infrastructure ( building installations, supply and disposal) Mining Machine control ...... Installation points 3KD series products are primarily used in the following places: Distribution boards with standard system dimensions Cabinets Mounting plates (free assembly) 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 13 Product description 3.1 Function, performance features, application areas 3KD switch disconnector 14 Manual, 10.2018, L1V30490761A-02 4 Product line, product group 4.1 3KD switch disconnector Frame size 1 2 3 4 5 16...63 80...200 200...400 500...800 1000...1600 3 4 6 Front operation Side operation Floor mounting Mounting on a standard mounting rail X X X Flat terminal X Box terminal X X X Rated current In (A) Number of poles Operating mechanism Type of mounting Connections 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 15 Product line, product group 4.1 3KD switch disconnector 4.1.1 Frame sizes 3KD switch disconnectors are available in the following frame sizes: Frame size 1: 16 - 32 - 63 A Frame size 2: 80 - 100 - 125 - 160 - 200 A Frame size 3: 200 - 250 - 315 - 400 A Frame size 4: 500 - 630 - 800 A Frame size 5: 1000 - 1250 - 1600 A Frame sizes Frame size 1 Frame size 3 Frame size 2 Frame size 4 Frame size 5 3KD switch disconnector 16 Manual, 10.2018, L1V30490761A-02 Product line, product group 4.1 3KD switch disconnector 4.1.2 Type of mounting Type of mounting Frame size Floor mounting 1, 2, 3, 4, 5 Mounting on a standard mounting rail 1, 2 Floor mounting Mounting on a standard mounting rail 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 17 Product line, product group 4.1 3KD switch disconnector 4.1.3 Connection Connection types Connections Frame size Flat terminal 2, 3, 4, 5 Box terminal 1, 2 Frame size 1 and 2 are available with box terminals for connection of stripped conductors. Frame size 2, 3, 4 and 5 are available with flat terminals for connection of cable lugs or busbars. Box terminal Flat terminal 3KD switch disconnector 18 Manual, 10.2018, L1V30490761A-02 Product line, product group 4.1 3KD switch disconnector 4.1.4 Operating mechanism / handle All frame sizes of 3KD are available for manual operation from the front or side. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 19 Product line, product group 4.1 3KD switch disconnector 3KD with manual operation can be fitted with direct handles for operation directly at the switch or with door coupling handles for operation from the outer side of a switchboard. Note 3KD is available as complete units (including handle) only with direct operating mechanisms from front side in gray color. For other combinations (red/yellow handles, door coupling handles or operation from the side) 3KD basic units (w/o handle) and handle has to be ordered separately. 3KD switch disconnector 20 Manual, 10.2018, L1V30490761A-02 Product line, product group 4.2 Accessories 4.2 Accessories 4.2.1 Additional poles All frame sizes of 3KD can be retrofitted with additional poles, e.g. for N or PE phase. Available are a switching pole, an N/PE terminal (with fixed jumper) and N terminal (with removable jumper). 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 21 Product line, product group 4.2 Accessories 4.2.2 Direct operating mechanism Direct operating mechanisms are used if a 3KD shall be operated directly at the switch. They are available for all frame sizes in the colors gray and red/yellow (for EMERGENCY-STOP applications). Every standard direct operating mechanisms can be locked with up to 3 padlocks. For frame size 1 and 2 additional flat versions are available which can be locked only with one padlock, but which needs no additional depth when locked. Versions of direct operating mechanisms - example frame size 2 Direct operating mechanism, Direct operating mechanism, standard version, gray standard version, red/yellow Direct operating mechanism, Direct operating mechanism, flat version, gray flat version, red/yellow 3KD switch disconnector 22 Manual, 10.2018, L1V30490761A-02 Product line, product group 4.2 Accessories 4.2.3 Door-coupling rotary operating mechanism The door-coupling rotary operating mechanism enables operation of the switch disconnector from the outside of the cabinet door. 8UD1 - modern handle design, new features. The 8UD1 door-coupling rotary operating mechanism allows illumination of the front cover, and supports the test function for auxiliary switches. The door-coupling rotary operating mechanisms are available as complete units including handle, coupling driver and 300 mm long shaft. All parts are also available separately. Exploded view of all components for 8UD1 as below: Handle Coupling driver with tolerance compensation Coupling driver without tolerance compensation Extension shaft 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 23 Product line, product group 4.2 Accessories 4.2.4 Auxiliary switches Auxiliary switches are used to signal the switch position ON - OFF of the 3KD. Auxiliary switches can be used with different switching instants (leading / simultaneously). Simultaneously: Auxiliary switches at the same time as the main contacts of the 3KD. Leading: When switching the 3KD from ON to OFF position, the auxiliary switches are operated before the main contacts open. For frame sizes 3, 4 and 5 the auxiliary contacts are snapped directly to the drive unit of the 3KD, for frame size 1 and 2 micro-switches are used which have to be assembled into auxiliary switch modules. Switching diagram for main contact, simultaneously and leading auxiliary switch as below: Auxiliary switch of frame size 1 and 2 Auxiliary switch of frame size 3, 4 and 5 3KD switch disconnector 24 Manual, 10.2018, L1V30490761A-02 Product line, product group 4.2 Accessories 4.2.5 Phase barriers Phase barriers are used between the terminals of 3KD with flat terminals. They increase isolation between the contacts. Phase barriers have to be used under certain circumstances (voltage level, switching category, assembly position of the switch). For details please see chapter Phase barriers (Page 50) Phase barriers on a 3KD, example frame size 2 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 25 Product line, product group 4.2 Accessories 4.2.6 Cable connection covers Cable connection covers can be used on 3KD with flat terminals to provide touch protection. Cable connection covers on a 3KD, example of frame size 2. Note Cable connection covers can also be assembled to the drive unit of a 3KD to get a consistent design or to cover the wiring of auxiliary switches. 3KD switch disconnector 26 Manual, 10.2018, L1V30490761A-02 Product line, product group 4.3 Exploded views 4.3 Exploded views 4.3.1 Exploded views for frame size 1 and 2 3KD switch disconnector Neutral conductor terminal (with Direct operating mechanism (standard version) Direct operating mechanism (suitable for Mounting bracket (spare part) 4th contact element distribution boards) 8UD1 door-coupling rotary operating mechanism N/PE terminal ( with permanent jumper) removable jumper) Auxiliary switch module Auxiliary switch 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 27 Product line, product group 4.3 Exploded views 4.3.2 Exploded views for frame size 3, 4 and 5 3KD switch disconnectors Direct operating mechanism 8UD1 door-coupling rotary operating mechanism Phase barriers Cable connection covers, short Cable connection covers N/PE terminal (with permanent jumper) Neutral conductor (with removable jumper) 4th contact element Auxiliary switch 3KD switch disconnector 28 Manual, 10.2018, L1V30490761A-02 Product line, product group 4.4 Article number structure 4.4 Article number structure Article numbers for switches Rated current Ith Number of poles Operation Terminal Frame size Position of drive module Article numbers for accessory Suitable for frame size Version of accessory Kind of accessory 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 29 Product line, product group 4.4 Article number structure 3KD switch disconnector 30 Manual, 10.2018, L1V30490761A-02 Function and operation 5.1 5 Manual operation Note The manually operated 3KD can be operated with the direct handle for operation directly at the switch or with the door-coupling rotary operating mechanism for operation from outside of the cabinet. Details please see chapter Accessories (Page 21). Test position In test position only the auxiliary contacts are operated, main contacts stay open. To switch to test position, pull the lever and turn the handle counterclockwise. Operation of "test lever" and switching to test as below: 3KD with direct operating mechanism 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 31 Function and operation 5.1 Manual operation 3KD with door-coupling rotary operating mechanism (8UD1 series) Note Function "test position" is only possible if the 3KD switch is equipped with a direct handle or a door coupling handle of 8UD1 series. 3KD switch disconnector 32 Manual, 10.2018, L1V30490761A-02 Assembly and mounting 6.1 6 Assembly of parts in scope of delivery Labels The labels in the scope of delivery of every 3KD switch disconnector are intended to identify the phases which are connected to the switching poles on the 3KD switch disconnectors. Note As an alternative to the supplied labels, also every other kind of label with the correct size can be used. Sizes: Frame size Max. label size [mm x mm] 1, 2 6.8 x 4.3 3, 4, 5 20 x 7.2 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 33 Assembly and mounting 6.2 Mounting position 6.2 Mounting position Valid for all frame sizes. WARNING Fire hazard. Some combinations of mounting position and load may cause flashovers between the terminals if no phase barriers or cable connection covers are used. Use phase barriers or cable connection covers if applicable according to chapter Phase barriers (Page 50). 3KD switch disconnector 34 Manual, 10.2018, L1V30490761A-02 Assembly and mounting 6.3 Floor mounting 6.3 Floor mounting 6.3.1 Frame size 1 and 2 Mounting bracket are in the scope of delivery of the switch and have to be snapped into the rear side of the switch. Note If the 3KD is assembled on a DIN rail, the mounting bracket do not have to be assembled. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 35 Assembly and mounting 6.3 Floor mounting Drilling template frame size 1 and 2 Frame size Poles Terminal A [mm] B [mm] C [mm] D [mm] E [mm] F [mm] 94 109 119.6 46.5 119 M4 Box terminal 112 127 137.6 46.6 119 M4 148 163 173.6 46.5 119 M4 Box terminal 121 136 146.6 46.5 126 M4 Flat terminal 121 136 146.6 46.5 130 1) M4 Box terminal 148 163 173.6 46.5 126 M4 Flat terminal 148 163 173.6 46.5 130 1) M4 Box terminal 202 217 227.6 46.5 126 M4 Flat terminal 202 217 227.6 46.5 130 M4 3 1 4 6 3 2 4 6 1) 1) Without phase barriers Note Scale The drilling template is not in scale 1:1. 3KD switch disconnector 36 Manual, 10.2018, L1V30490761A-02 Assembly and mounting 6.3 Floor mounting 6.3.2 Frame size 3 and 4 Frame size 3 M4 2.0 ... 2.5 Nm 3.0 mm 4 M6 5.0 ... 6.0 Nm 5.0 mm The mounting bracket can be used in horizontal or vertical alignment to adjust them to the dimension of the mounting location. Frame size 3 PH1 0.9 ... 1.1 Nm 4 PH2 2.7 ... 3.3 Nm 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 37 Assembly and mounting 6.3 Floor mounting Drilling template frame size 3 and 4 Frame size 3 4 Poles A [mm] B [mm] C [mm] D [mm] E [mm] F 1) [mm] G [mm] H [mm] J [mm] K 2) [mm] 3 167 190 200 208 65 100 110 118 M4 - 4 211 234 244 252 65 100 110 118 M4 - 6 299 323 332 340 65 100 110 118 M4 35 3 228 260 279 291 93 145 161 173 M6 - 4 288 320 339 351 93 145 161 173 M6 - 6 408 440 459 471 93 145 161 173 M6 48 1) Dimension of the body of the switch (without phase barriers and terminal bars) 2) Only for 6-pole versions Note Scale The drilling template is not in scale 1:1. 3KD switch disconnector 38 Manual, 10.2018, L1V30490761A-02 Assembly and mounting 6.3 Floor mounting 6.3.3 Frame size 5 Drilling template for frame size 5 Dimension of the body of the switch (without phase barriers and terminal bars) C is the distance of the inner mounting bracket 2) Poles A [mm] B [mm] C 2) [mm] 3 340 382 - 4 430 472 - 6 610 652 70 Only for 6-pole versions Note Scale The drilling template is not in scale 1:1. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 39 Assembly and mounting 6.4 Mounting on DIN rails 6.4 Mounting on DIN rails Mounting on DIN rail-- Frame sizes 1 and 2 Dismounting from DIN rail-- Frame sizes 1 and 2 with front operation 3KD switch disconnector 40 Manual, 10.2018, L1V30490761A-02 Assembly and mounting 6.4 Mounting on DIN rails Disassembly from DIN rail - Frame sizes 1 and 2 with side operation from left side Note The mounting bracket which are in the scope of delivery of the switch are not necessary for mounting on DIN rails. Position of release hooks 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 41 Assembly and mounting 6.4 Mounting on DIN rails 3KD switch disconnector 42 Manual, 10.2018, L1V30490761A-02 7 Connection and wiring 7.1 Main circuit connection The connections of the main conductors for the various frame sizes are described below: Tools to be used Tightening torque range Permissible conductor cross-sections 7.1.1 Approved circuit diagrams The following circuits are approved AC applications AC applications, 3 pole AC applications, 4 pole Note 4th pole is optional accessory. Options for additional poles DC applications DC applications, 2 series-connected switching poles - max. 220 V DC 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 43 Connection and wiring 7.1 Main circuit connection DC applications, 3 series-connected switching poles - max. 440 V DC Typical circuit diagrams for 3KD 6-pole for DC applications up to 1200 V, all sizes in which 3 of the 6 poles in each case are to be connected in series using the connecting bridges. 3KD switch disconnector 44 Manual, 10.2018, L1V30490761A-02 Connection and wiring 7.1 Main circuit connection 7.1.2 Box terminal Frame size 1 5.0 ... 6.5 Nm 2 6.5 ... 8.0 Nm To get access to the screw of the terminal, the integrated cover has to be slided by the tip of the tool (show as step 1). Box terminals of 3KD are designed to connect one round cable and one bar (massive copper or flexibar) at the same time. Stripping insulation Frame size A [ mm ] 1 15 2 18 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 45 Connection and wiring 7.1 Main circuit connection Technical data - box terminal Frame size 1 Tool Cable type Conductor Conductor cross-section cross-section [ mm / mm ] [ mm / mm ] CU 1 x 1...16 1 x 2.5...16 CU 1 x 6...35 1 x 10...70 CU 1 x 1...35 1 x 2.5...70 Cable material CU 1) 2 Tool 4 mm, 5.0 ... 6.5 Nm 2 x 9 1) 4 mm, 6.5 ... 8.0 Nm 3 x 14 1) CU 1 x 1...16 + 2 x 9 1 x 2.5 ... 16 + 3 x 14 CU 1 x 6...35 + 2 x 9 1 x 10 ... 70 + 3 x 14 Attention: When the number of layers multiplied with thickness of layer of flexible copper bars are exactly the allowed maximum thickness of the terminal it could be the case that it does not fit to the terminal because in practice the flexibar is a little bit thicker - e.g. a flexibar with 4 layers of 0.5 could be thicker than 2 mm. 3KD switch disconnector 46 Manual, 10.2018, L1V30490761A-02 Connection and wiring 7.1 Main circuit connection 7.1.3 Flat terminal Frame sizes 2, 3 and 4 Frame size 5 WARNING Fire hazard. Incorrect connection of cables may cause the risk of flashovers between the terminals. * Terminal screw has to have the correct alignment - nuts on top. * Frame size 5: If only one of the two holes in the connecting lug is used - always the same side has to be used (holes on the left or right side). 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 47 Connection and wiring 7.1 Main circuit connection Dimensions for drilling of busbars Frame sizes 2, 3 and 4 Frame size 5 Frame size A [mm] B [mm] C [mm] D [mm] 2 < 10 - - 9 3 < 15.5 - - 11 4 < 21 - - 14 5 < 19 23 ... 29 13 14 Technical data - flat terminal 2 Frame size 2 Up to 160 A 200 A Tool Tool Cable type DIN ISO 46234 DIN ISO 46235 Cable material CU Conductor cross-section cross-section [mm / mm] [ mm / mm ] 1 x 2.5 ... 95 CU CU Conductor 1 x 2.5 ... 95 2 x 2.5 ... 50 13 mm, 15 ... 22 Nm 1 x 25 ... 70 2 x 25 ... 50 1 x 15 x 3 1 x 20 x 3 13 mm, 15 ... 22 Nm - 1 x 20 x 3 3KD switch disconnector 48 Manual, 10.2018, L1V30490761A-02 Connection and wiring 7.1 Main circuit connection Frame size 3 Tool Cable type DIN ISO 46234 DIN ISO 46235 Cable material CU CU 16 mm, 30 ... 44 Nm CU 4 Conductor Tool 5 Conductor Tool Conductor cross-section cross-section [mm / mm] [mm / mm] cross-section [mm / mm] 1 x 6 ... 240 1 x 25 ... 240 1 x 120 ... 240 2 x 6 ... 150 2 x 25 ... 240 2 x 95 ... 240 1 x 16 ... 185 1 x 25 ... 240 1 x 120 ... 185 2 x 16 ... 150 1 x 20 x 3 1 x 25 x 3 1 x 30 x 4 1 x 30 x 10 18 mm, 50 ... 75 Nm 2 x 25 ... 240 18 mm, 50...75 Nm 2 x 95 ... 185 1 x 30 x 10 1 x 40 x 10 - 2 x 40 x 5 2 x 50 x 6 CU - - 2 x 40 x 10 2 x 60 x 10 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 49 Connection and wiring 7.1 Main circuit connection 7.1.4 Connecting bridges For DC switches connecting bridges are available which connect two terminals. Connecting bridge for box terminal, example size 2 Connecting bridge for flat terminal, example size 2 For tool size and torque, please see charts in chapters of Box terminal (Page 45) and Flat terminal (Page 47) 7.1.5 Wiring accessories 7.1.5.1 Phase barriers Phase barriers are used at 3KD with flat terminals for additional isolation between the terminals. They prevent interphase arcing during switching. Background: During switching of the 3KD, it has to extinguish the electric arc in the contact modules. The arc produces conductive gases, which are blown out of the contact modules. If there are too many of these conductive gases a short circuit between the terminals can occur. The following table shows under which circumstances an isolation between the terminals is necessary to prevent short circuits between the terminals. This isolation can be implemented by using phase barriers. Note 3KD size 2 has phase barriers in scope of delivery. 3KD switch disconnector 50 Manual, 10.2018, L1V30490761A-02 Connection and wiring 7.1 Main circuit connection 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 51 Connection and wiring 7.1 Main circuit connection Assembly of phase barriers 3KD switch disconnector 52 Manual, 10.2018, L1V30490761A-02 Connection and wiring 7.1 Main circuit connection Assembly positions of phase barriers 3KD, front operation, 3-pole, drive module on left side 3KD, front operation, 3-pole, drive module in center position 3KD, front operation, 4-pole, drive module in center position 3KD, side operation Note On position "A" assembly of a phase barrier is only necessary if another device with nonisolated contacts or a grounded metal part is located directly next to the 3KD, e.g. another switch with non-isolated terminals or a cabinet side wall. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 53 Connection and wiring 7.1 Main circuit connection Minimum distance to end of non-isolated part of cable lug Phase barriers need a minimum distance from the end of the phase barrier to the end of the non-isolated part of the installed cable lugs. Frame size A [ mm ] 2 4 3, 4, 5 7 Shortening of phase barriers The phase barriers can be shortened according to the available space in the application. Frame size A [ mm ] B [ mm ] C [ mm ] 2 44 60 73 3 - 76.5 106.5 4 - 86 122 5 - - 135 3KD switch disconnector 54 Manual, 10.2018, L1V30490761A-02 Connection and wiring 7.1 Main circuit connection 7.1.5.2 Cable connection covers Cable connection covers are used on 3KD with flat terminals if touch protection is required. Note Cable connection covers fulfill the same functionality as phase barriers. If additional touch protection of the terminals is necessary, cable connection covers can be used instead of phase barriers. It is not possible to use phase barriers and cable connection covers at the same time. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 55 Connection and wiring 7.1 Main circuit connection Cable connection covers for connecting bridges For DC switches which are using connecting bridges, versions of cable connection covers which cover two terminals including the bridging bar are available. Note Cable connection covers can also be assembled on the drive module of the 3KD switch. The following images show the additional functionality of cable connection covers. For example, they can be used if an integrated design is desired, or if assembled auxiliary switches (frame sizes 3, 4 and 5) should be covered. 3KD switch disconnector 56 Manual, 10.2018, L1V30490761A-02 Connection and wiring 7.2 Auxiliary circuit connection 7.2 Auxiliary circuit connection 7.2.1 Auxiliary switches For more information about assembling the auxiliary switches, please see chapter of Auxiliary switches (Page 63). 7.2.1.1 Auxiliary switches of frame size 1 and 2 Auxiliary switches for frame size 1 and 2 are available in two different versions: With cable These are delivered with soldered 50 cm long cables. If longer wiring is necessary, terminal blocks have to be used. Conductor cross-section of the soldered cables is AWG18 / 0.82 mm. Without cable These are delivered with 3 pcs of blade terminals and 3 pcs of identification tubes. The blade terminals can be used with conductor cross-section from 0.5 - 1.5 mm (2216AWG) mm. The identification tubes can be placed on the cables for easy identification of the auxiliary switch pins. They can be fixed with a hot-air gun (heat shrink tube). Version with cable Version without cable 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 57 Connection and wiring 7.3 Contact numbers 7.2.1.2 Auxiliary switches for frame size 3, 4 and 5 3KD frame size 3, 4 and 5 uses contact elements from the 3SU1 pushbutton range as auxiliary switches. 7.3 Contact numbers This chapter describes contact numbers for wiring plans. 7.3.1 Main circuit For identification of the main terminals in wiring plans, every 3KD switch and also additional poles have corresponding labels in the scope of delivery. As an alternative to the supplied labels it is possible to use labels that are suitable for use in an industrial environment (e.g. heat resistance). For further information see chapter Assembly of parts in scope of delivery (Page 33) 3KD switch disconnector 58 Manual, 10.2018, L1V30490761A-02 Connection and wiring 7.3 Contact numbers 7.3.2 Auxiliary switches Every contact number consists of two digits, the first digit is printed on the drive module of the 3KD switch (frame size 3, 4 and 5) or the auxiliary switch module (frame size 1, 2). The second digit is printed on the auxiliary switch. The first digit of auxiliary switch contact number: Frame size 3 Frame size 4, 5 Note If a single-pole auxiliary switch is assembled, only the numbers in the first line are used. If a double-pole auxiliary switch is assembled the upper line of numbers on the drive module is used for the upper contact in the auxiliary switch, the lower line for the lower contact of auxiliary switch module. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 59 Connection and wiring 7.3 Contact numbers Frame size 1, 2, Auxiliary switch module, standard version Frame size 1, 2, Auxiliary switch module, versions with test function or leading switching instant Note The auxiliary switch module standard version is printed with two sets of numbers for the first digit because it is possible to use two of these modules on one 3KD switch. The left number shall be used if only one of the modules is used, the right number if a second module is installed. 3KD switch disconnector 60 Manual, 10.2018, L1V30490761A-02 Connection and wiring 7.3 Contact numbers Second digit of auxiliary switch contact number: Frame size 1, 2 Frame size 3, 4, 5, Single-pole auxiliary switch (3SU1400-1AA10-1BA0) Frame size 3, 4, 5, Double-pole auxiliary switch (3SU1400-1AA10-1FA0) 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 61 Connection and wiring 7.3 Contact numbers 3KD switch disconnector 62 Manual, 10.2018, L1V30490761A-02 Further accessories 8.1 8 Auxiliary switches Purpose of the auxiliary switches Auxiliary switches are used to signal the switch position of the main contacts of the 3KD. They can be retrofitted if required. Switching instant of the auxiliary switches You can set different switching instant (leading / simultaneously) for the auxiliary switches, please refer to the chapter Installation of auxiliary switches (Page 66) Note Simultaneous switching means that the main contacts of the 3KD and auxiliary switch contacts are switching in a tolerance of < 5 ms. Test function 3KD supports a test function for auxiliary switches. The test function is allowed to operate the auxiliary switches in the OFF position of the 3KD switch without the need for closing of the main contacts. The test function can be used to check the correct wiring of auxiliary contacts during placing a machine into operation. To prevent accidental switching to the "test" position during operational switching from ON to OFF, the test position is blocked. To be able to switch to test, a lever has to be operated. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 63 Further accessories 8.1 Auxiliary switches Switching to test position 3KD with direct operating mechanism 3KD with door-coupling rotary operating mechanism, 8UD1 series Note * The test function is only possible on 3KD with operation from the front. With frame sizes 1 and 2, test function is only possible for switch versions where the drive module is not in the center position. 3KD with side wall operation does not support the test function for auxiliary switches. On this device a door-coupling rotary operating mechanism without the inscription "Test" has to be used. 3KD switch disconnector 64 Manual, 10.2018, L1V30490761A-02 Further accessories 8.1 Auxiliary switches Overview - availability of test function and switching times for auxiliary switches Frame size Operation Front, drive module on left side 1, 2 Front, drive module in center position Side operated versions Front, drive module on left side 3, 4, 5 Front, drive module in center position Side operated versions Kind of handle Test function Direct Yes 8UD1 Direct Switching time Simultaneously Leading Yes Yes Yes Yes Yes No Yes No 8UD1 No Yes No 8UD1 No Yes Yes Direct Yes Yes Yes 8UD1 Yes Yes Yes Direct Yes Yes Yes 8UD1 Yes Yes Yes 8UD1 No Yes Yes 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 65 Further accessories 8.1 Auxiliary switches 8.1.1 Installation of auxiliary switches 8.1.1.1 Frame sizes 1 and 2 Frame sizes 1 and 2 use micro-switches as auxiliary switches with a changeover contact, (NO/NC) which are snapped into an auxiliary switch module. In every auxiliary switch module up to two auxiliary switches can be assembled. The auxiliary switch modules are assembled to the sides of the 3KD switch in the same way as an additional pole - for assembling the auxiliary switch modules refer to chapter of Assembly of additional poles (Page 78). Assembling of auxiliary switch Disassembling of auxiliary switch Test function, switching instant setting With frame sizes 1 and 2, the functionality of the auxiliary switches is adjusted by using the corresponding version of auxiliary switch module: Version Article number Switching instant Test function Simultaneously Leading Standard 3KD9103-5 Yes No No With test function 3KD9103-6 Yes No Yes Leading and test function 3KD9103-7 No Yes Yes Note Auxiliary switch modules 3KD9103-6 and 3KD9103-7 can only be assembled directly next to the drive module of the 3KD switch. Please also refer to chapter of Assembly of additional poles (Page 78). 3KD switch disconnector 66 Manual, 10.2018, L1V30490761A-02 Further accessories 8.1 Auxiliary switches 8.1.1.2 Frame sizes 3, 4 and 5 Frame sizes 3, 4 and 5 uses contact elements of series 3SU1 as auxiliary switches, which are snapped onto the drive module of the 3KD switch. Assembling of auxiliary switch Disassembling of auxiliary switch 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 67 Further accessories 8.1 Auxiliary switches Assembly positions 3KD frame size 3 is allowed to assemble up to three auxiliary switches, frame sizes 4 and 5 up to four auxiliary switches. Assembling positions for frame size 3 Assembling positions for frame size 4 and 5 Test function When the 3KD is switched to test position, the auxiliary switches at all possible assembly positions are actuated - , , and ( only at frame size 4 and 5). Note Test function is not supported by all versions of 3KD. Details please see chapter Auxiliary switches (Page 63). Switching instant setting Auxiliary switches which are assembled to position have leading switching instant. Auxiliary switches which are assembled to position , or ( only with frame size 4 and 5) have simultaneously switching instant. 3KD switch disconnector 68 Manual, 10.2018, L1V30490761A-02 Further accessories 8.1 Auxiliary switches 8.1.2 Enabling / disabling of test function Test function is possible on certain combinations of 3KD switch and handle: 3KD version Operated from front Operated from the side Assembled handle Test function Direct handle Yes 8UD1 door-coupling rotary operating mechanism Yes 8UD1 door-coupling rotary operating mechanism No Note * 3KD with operation from the side does not support the test function in general, disabling of the test function is not necessary. * 3KD with operation from the side, the correct version of the door-coupling rotary operating mechanism has to be used (with inscription O-I, without inscription "Test"). * If the test function is not required, it is also possible to disable it when an 8UD1 doorcoupling rotary operating mechanism is used on a 3KD with operation from the front. Make sure to use the correct version of the 8UD1 in this case (without inscription "Test"). 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 69 Further accessories 8.1 Auxiliary switches 8.1.2.1 Frame sizes 1 and 2 1. Remove the screw (which is used to fix the shaft of a door-coupling rotary operating mechanism). 2. Remove the cover on the drive module. 3. Remove the test function blocking pin for enabling the test function. Reassemble the cover and screw if a door-coupling rotary operating mechanism is used or assemble the direct handle (cover and screw are not necessary). 3KD switch disconnector 70 Manual, 10.2018, L1V30490761A-02 Further accessories 8.1 Auxiliary switches 8.1.2.2 Frame sizes 3, 4 and 5 Frame size 3 2.0 mm 4 2.5 mm 5 3.0 mm Remove the screw which is used to fix the shaft of a door-coupling rotary operating mechanism Remove the shaft fixing ring Remove the cover on the drive module. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 71 Further accessories 8.1 Auxiliary switches Remove the blocking pin for enabling the test function. Reassemble the cover, ring and screw if a door-coupling rotary operating mechanism is used or assemble the direct handle (cover and screw are not necessary). 3KD switch disconnector 72 Manual, 10.2018, L1V30490761A-02 Further accessories 8.2 Additional poles 8.2 Additional poles 8.2.1 Versions of available poles Example: frame size 3 with flat terminal. 4th contact element N/PE terminal N terminal Auxiliary switch module (size 1 and 2) 4th contact element Additional pole with contact element inside - it has the same functionality like the contact poles which are assembled to a 3KD switch. The 4th pole is intended to expand a 3-pole 3KD to a 4-pole version if the N phase shall be switched. N/PE terminal Additional pole without switching functionality, with fixed connection between the upper and lower terminal of the pole. The N/PE terminal is intended to expand a 3KD switch with a connection possibility for Neutral or Protective Earth phase. N terminal Additional pole without switching functionality, with connection between the upper and lower terminal of the pole. The connection between the terminals can be opened by unscrewing the jumper. The N terminal is intended to expand a 3KD switch with a connection possibility for Neutral phase if it is wished to have the possibility to unconnect N (e.g. for maintenance), but not wished to switch N. Auxiliary switch module (for size 1 and 2) They are used for frame sizes 1 and 2 to assemble auxiliary switches to the 3KD. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 73 Further accessories 8.2 Additional poles 8.2.2 Possible assembly positions for additional poles and auxiliary switch modules 8.2.2.1 Frame sizes 1 and 2 4th pole Neutral terminal N/PE terminal Auxiliary switch module Standard Auxiliary switch module with test function Auxiliary switch module with leading NO contact and test function Note The side operated 3KD frame size 1 and 2 have a wider side cover next to the drive module, with an integrated assembly place for one auxiliary switch. This auxiliary switch supports early break switching time. 3KD switch disconnector 74 Manual, 10.2018, L1V30490761A-02 Further accessories 8.2 Additional poles 6-pole 3KD for DC applications: Note * A 3KD switch for AC applications can have a maximum of 4 switched contact elements, a 4th pole can only be used on a 3-pole 3KD. * It is possible to use one additional pole or auxiliary switch module on each side of a front operated 3KD. * It is possible to use one additional pole or auxiliary switch module on the side opposite of the drive module of a side operated module. * Auxiliary switch modules have two sets of screws in the scope of delivery. The selftapping screws are used if the module is assembled to a 3KF switch disconnector with fuses, for 3KD the screws with thread have to be used. * Auxiliary switch modules with test function or with leading NO and test function can only be used directly next to the drive module of the 3KD. * Additional poles have two sets of screws in the scope of delivery. The shorter screws are used if only the additional pole shall be assembled, and the longer screws have to be used if an additional pole and an auxiliary switch module are assembled. Long screw Short screw 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 75 Further accessories 8.2 Additional poles 8.2.2.2 Frame sizes 3, 4 and 5 4th pole Neutral terminal N/PE terminal 3KD switch disconnector 76 Manual, 10.2018, L1V30490761A-02 Further accessories 8.2 Additional poles 6-pole 3KD for DC applications: NOTICE Damage to property. Risk of malfunction or damaging the device. A 3KD switch for AC applications can have a maximum of 4 switched contact elements, a 4th pole can only be used on a 3-pole 3KD. Note * It is possible to use one additional pole on each side of a front operated 3KD. * It is possible to use one additional pole on the side opposite of the drive module of a side operated 3KD. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 77 Further accessories 8.2 Additional poles 8.2.3 Assembly of additional poles Remove the side cover from 3KD on the side of the switch on which the additional pole shall be assembled. Frame size 1, 2, 3 Frame size 4, 5 Frame size 4 PH2 5 PH3 Turn the shaft of the additional pole to the right position for the assembly to the 3KD. N and N/PE terminal, auxiliary switch (frame sizes 1 and 2) 3KD switch disconnector 78 Manual, 10.2018, L1V30490761A-02 Further accessories 8.2 Additional poles 4th pole Frame size 1 and 2: For auxiliary switch modules and N and N/PE poles of frame size 1 and 2, two lines on the housing and shaft have to be aligned. The 4th pole has to be turned clockwise until no further turning is possible. Frame size 3, 4 and 5: 4th pole has to be turned clockwise until no further turning is possible. N and N/PE poles need no alignment. Place the additional pole on the 3KD switch. The additional pole has to be fitted directly to the 3KD (without a gap between switch and additional pole). 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 79 Further accessories 8.2 Additional poles Reassemble the side cover with the longer screws which are in the scope of delivery of the additional pole. Frame sizes 1, 2, 3 Frame sizes 4, 5 Frame size 4 PH2 0.5 ... 0.7 Nm 5 PH3 0.7 ... 0.9 Nm 3KD switch disconnector 80 Manual, 10.2018, L1V30490761A-02 Further accessories 8.2 Additional poles Assembly of two modules on one side of the switch 3KD frame sizes 1 and 2 allow the usage of two modules on one side of the switch (see chapter Frame sizes 1 and 2 (Page 74)). For this kind of assembly the additional poles have two sets of screws with different lengths in the scope of delivery. The short version of screw is used if the additional pole is used, the longer version is used if an additional pole is used in combination with an auxiliary switch module. The scope of delivery of the additional poles includes labels which can be used to identify the phase type (N, PE). 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 81 Further accessories 8.2 Additional poles 8.2.4 Removing the jumper at N terminal Removing the jumper 3KD frame size 1 2 With box terminal 3 mm With flat terminal 3 mm With box terminal 4 mm 3 With flat terminal 5 mm 4, 5 With flat terminal 6 mm 3KD switch disconnector 82 Manual, 10.2018, L1V30490761A-02 Further accessories 8.2 Additional poles Reassembling the jumper 3KD frame size 1 With box terminal 3 mm 1.3 ... 1.7 Nm With flat terminal 3 mm 1.3 ... 1.7 Nm With box terminal 4 mm 1.9 ... 2.5 Nm 3 With flat terminal 5 mm 3.0 ... 5.0 Nm 4 With flat terminal 6 mm 5.0 ... 7.0 Nm 5 With flat terminal 6 mm 7.0 ... 9.0 Nm 2 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 83 Further accessories 8.3 Direct operating mechanism 8.3 Direct operating mechanism 8.3.1 Versions Direct operating mechanism, Direct operating mechanism, standard version, gray standard version, red/yellow Direct operating mechanism, Direct operating mechanism, flat version, gray flat version, red/yellow Note Handles in red/yellow color are used for EMERGENCY-STOP applications, and gray handles for all other applications. * The standard version of direct operating mechanism can be padlocked with up to 3 padlocks, but needs additional depth when padlocked. * The flat version of direct operating mechanism can be padlocked with one padlock, but needs no additional depth when padlocked. * The flat versions of direct operating mechanism are available for frame sizes 1 and 2. 3KD switch disconnector 84 Manual, 10.2018, L1V30490761A-02 Further accessories 8.3 Direct operating mechanism 8.3.2 Padlocking 3KD switches can be padlocked in OFF position. Standard version of the direct operating mechanism Frame size O [ mm ] 1, 2, 3 4 ... 6 4, 5 4 ... 8 Flat version of the direct operating mechanism 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 85 Further accessories 8.3 Direct operating mechanism 8.3.3 Assembling 8.3.3.1 Frame sizes 1 and 2 Remove the screw which is intended to tighten the shaft of a door-coupling rotary operating mechanism. Remove the front cover from the drive module. Remove the test function blocking pin - for further information see chapter Auxiliary switches (Page 63) 3KD switch disconnector 86 Manual, 10.2018, L1V30490761A-02 Further accessories 8.3 Direct operating mechanism Snap the direct operating mechanism onto the 3KD Note * The snapping mechanism of the direct handles cover fits strongly inside the drive module to prevent accidental loosening of the handle during operational switching of the 3KD. It is not possible to disassemble the cover, so please make sure to assemble the desired version of the direct handle. * The handle can also be released from the 3KD. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 87 Further accessories 8.3 Direct operating mechanism 8.3.3.2 Frame sizes 3, 4 and 5 Remove the screw and the metal ring which are intended to tighten the shaft of a doorcoupling rotary operating mechanism. Frame size 3 2.0 mm 4 2.5 mm 5 3.0 mm Remove the front cover from the drive module. Remove the test function blocking pin - for further information see chapter Auxiliary switches (Page 63) 3KD switch disconnector 88 Manual, 10.2018, L1V30490761A-02 Further accessories 8.3 Direct operating mechanism Screw the handle to the 3KD Frame size 3 PH1 0.25 ... 0.35 Nm 4 PH2 0.7 ... 0.9 Nm 5 PH3 0.9 ... 1.1 Nm Note The handle can also be released from the 3KD. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 89 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism 8.4 8UD1 door-coupling rotary operating mechanism The door-coupling rotary operating mechanism enables operation of the switch disconnector from the outside of the cabinet door. Note Door-coupling rotary operating mechanism can only be retrofitted to 3KD without factory assembled direct handle. Retrofitting to 3KD with factory assembled direct handle is not possible. 8UD1 Series Modern design of the handles identical with the handles which are used on the new range of 3VA MCCBs. Locking function at the handle with padlocks. Switching symbols in the handle can be illuminated. Test function of auxiliary switches is supported. 3KD switch disconnector 90 Manual, 10.2018, L1V30490761A-02 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism 8.4.1 Component overview Handle (including front cover, gasket and screws for fixing in front door) Labeling plate Coupling driver with tolerance compensation Coupling driver without tolerance compensation Extension shaft Shaft coupling 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 91 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism 8.4.2 Delivery forms and versions 8UD1 is available as a ready-to-assemble complete unit. This includes a handle without illumination, coupling driver with tolerance compensation and 300 mm long extension shaft. All components are also available separately, shafts are available in 300 mm and 600 mm length, handles are available in illuminated and non-illuminated versions. 8.4.3 Assembly Drilling template for cabinet door Frame size A [ mm ] B [ mm ] C [ mm ] D [ mm ] 1, 2 65 10.5 O 30 O 4.5 3, 4, 5 88 13.5 O 65 O 5.5 Note Scale The drilling template is not in scale 1:1. Note Illuminated 8UD1 The hole diameter of 3 mm is only necessary if an illuminated version of 8UD1 is used. 3KD switch disconnector 92 Manual, 10.2018, L1V30490761A-02 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Note Placement of the shaft Alignment of center hole and the cabinet door (shaft), to the position of the 3KD switch disconnector inside the cabinet can be found in the 3KD dimension drawings. Please see chapter Drilling templates (Page 131). The distance from the center hole in the cabinet door to the hinge of the cabinet door has to be 80 mm or more. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 93 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Assembling the handle to the door The following modification of the handle can only be performed, as long as the handle is not assembled to the cabinet door: Disabling of door interlock. Enabling of padlocking in ON position. Assembly of labelling plate. If you want to use these functions / accessories, you should do the necessary steps before continue with assembling of the handle to the door. For details about above features / accessories see chapter Functions and operation (Page 101), and Accessories for 8UD1 (Page 111). Frame size 1, 2 3, 4, 5 PZ2 1.1 ... 1.3 Nm 2.1 ... 2.4 Nm Note 8UD1 handles can be used in doors with a thickness between 2.0 and 5.5 mm. The 24 V DC power supply cable is only relevant if an illuminated version of the 8UD1 handle is used. 3KD switch disconnector 94 Manual, 10.2018, L1V30490761A-02 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Calculating the length of the shaft/cutting the shaft Front operated 3KD X = Distance from outside of the cabinet door to mounting plate for the 3KD switch (according to the dimension of the used cabinet) Length of the shaft Frame size of 3KD Coupling driver With tolerance compensation Without tolerance compensation A [mm] Tolerance B [mm] A [mm] Tolerance B [mm] 1, 2 X - 96 +5 X - 111 X - 54 +5 X - 69 3 X - 99.5 +10 X - 136.5 X - 57.5 +10 X - 94.5 4 X - 103 +10 X - 153 X - 61 +10 X - 111 5 X - 117.5 +10 X - 195.5 X - 75.5 +10 X - 153.5 Min. distance from mounting plate to front of door X Frame size of 3KD Min. distance X [mm] 1, 2 138.5 3 169 4 185.5 5 228 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 95 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Side operated 3KD X = Distance from inside of the cabinet side wall to outer side of the 3KD switch (according to the location of the 3KD inside of the cabinet) Length of the shaft Frame size of 3KD A [mm] Tolerance B [mm] 1, 2 X + 14 +5 X-1 3 X + 20 +10 X-1 4 X + 34 +10 X-1 5 X + 53 +10 X-1 Min. distance X from switch to outside of side wall: Frame size of 3KD Min. distance X [mm] 1, 2 28.5 3, 4, 5 33.5 Note On 3KD with side operation only coupling drivers without tolerance compensation can be used. 3KD switch disconnector 96 Manual, 10.2018, L1V30490761A-02 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Mark dimension B at the shaft Cut the shaft to length A Deburr the cut edges of the shaft to ensure proper assembly As for the letter A and B, please see the content of "cutting the shaft" in this chapter. Fix the coupling driver to the shaft. Move the shaft into the coupling driver as far as it will go. Fix the shaft to the 3KD. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 97 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Move the shaft into the 3KD up to marking B. Frame size 1 and 2 3KD switch disconnector 98 Manual, 10.2018, L1V30490761A-02 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Frame size 3, 4 and 5 Frame size 3 Front operation 2.0 mm 1.5 ... 2.0 Nm Side operation 3.0 mm 2.0 ... 2.5 Nm 4 2.5 mm 4.0 ... 4.5 Nm 4.0 mm 6.0 ... 6.5 Nm 5 3.0 mm 7.0 ... 7.5 Nm 5.0 mm 8.5 ... 9.0 Nm Close the cabinet door carefully the first time to check correct alignment between 8UD1 handle and 3KD switch. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 99 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism NOTICE Damage to property. Risk of damaging the device. When the cabinet door is opened, the 8UD1 coupling head is deflected downwards a little bit. This deflection is caused by tolerances between the 8UD1 shaft and the fixing point at 3KD and by tolerances where the 3KD is assembled inside the cabinet. In typical applications the cone on the backplate of the handle ensures that the coupling head hooks into the handle mechanism, even when deflected. If 3KD is assembled onto DIN rails and shafts longer than 300 mm are used, it may be the case that the deflection of the coupling head is too wide and the cabinet cannot be closed or the 8UD1 mechanism can be damaged. In this case the 8UD1 shaft can be supported by an internal structure of the cabinet (to eliminate deflection) or the accessory "shaft jack" for 8UD1 can be used. Please see chapter Accessories for 8UD1 (Page 111). Closing the cabinet door Coupling head slightly deflected downwards - cabinet door can be closed Coupling head widely deflected downwards - cabinet door cannot be closed Coupling head widely deflected downwards, 8UD1 handle with shaft jack - cabinet door can be closed 3KD switch disconnector 100 Manual, 10.2018, L1V30490761A-02 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism 8.4.4 Functions and operation Door interlock The door interlock of the door-coupling rotary operating mechanism locks the door as soon as the door-coupling rotary operating mechanism is turned to position ON (I). NOTICE Damage to property. Risk of damaging the device. If the door is pulled with a force of 800 N or more while the door interlock is activated, the operating mechanism can be destroyed. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 101 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Overriding the door interlock The door interlock can be overridden by a deliberate action. This means that the door can be opened with the operating mechanism in position ON (I) so that maintenance can be carried out, for example. Procedure 1. Press the door interlocking pin with a sharp object. 2. Hold the pin down while the door is opened. NOTICE Damage to property. Risk of damaging the device. If door interlock is overridden, take care that the 8UD1 handle and the 3KD switch are in the same position (both ON or both OFF) before closing the cabinet door to prevent damage to the mechanism. 3KD switch disconnector 102 Manual, 10.2018, L1V30490761A-02 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Disabling door interlock Door interlock can also be deactivated permanently. To deactivate the door interlock, a lever on the back of the 8UD1 front cover has to be turned to vertical position (with slotted screwdriver 2.5 mm) Door interlock activated Door interlock deactivated Note The lever for deactivation of the door interlock is only accessible when the handle is not assembled to the cabinet door. If you want to deactivate door interlocking, take care to rotate the lever before installation of the handle. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 103 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Overview door interlock NOTICE Damage to property. Risk of damaging the device. If the door interlock is deactivated, take care that the 8UD1 handle and the 3KD switch are in the same position (both ON or both OFF) before closing the cabinet door to prevent damage to the mechanism. 3KD switch disconnector 104 Manual, 10.2018, L1V30490761A-02 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Tolerance compensation Door-coupling rotary operating mechanisms are supplied as standard with a tolerance compensator. This device compensates any potential minor offset between the rotary switch of the cabinet doors and the shaft of the door-coupling rotary operating mechanism. Tolerance compensator Note The coupling drivers are also available without tolerance compensation (accessory). These are used for 3KD with side operation. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 105 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Padlocking 8UD1 handles in as-delivered condition can be locked with padlocks in OFF position. When the handle is locked in OFF position, the 3KD switch disconnector cannot be closed, nor can the cabinet door be opened. The door interlock cannot be overridden. Up to three padlocks with a shackle diameter of between 4.5 and 9.5 mm can be used to lock the rotary operating mechanisms. Padlocks are not included in scope of supply. Enabling padlocking in ON position 8UD1 handles can be modified in a way to allow padlocking in OFF and ON position. Note * This modification is not reversible. * Enabling of padlocking in ON position is only possible as long the handle is not assembled to the cabinet door. If you want to enable padlocking in the ON position, please take care to do it before installation of the handle. Disassemble the operator from the front cover. 3KD switch disconnector 106 Manual, 10.2018, L1V30490761A-02 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Remove the knockout contour Frame size 1, 2 1.0 ... 1.2 Nm 3, 4, 5 2.0 ... 2.5 Nm Re-assemble the operator to the front cover. Test padlocking in ON position before installation to the cabinet door. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 107 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Up to three padlocks with a shackle diameter of between 4.5 and 9.5 mm can be used to lock the rotary operating mechanisms. Note 3KD can also be used as an EMERGENCY-STOP switch (with red / yellow handle) - if 3KD is used as an EMERGENCY-STOP switch, padlocking in the ON position is not allowed. Test function for auxiliary switches 3KD offers a test function for assembled auxiliary switches which is supported by the 8UD1 door-coupling rotary operating mechanism. Note For details about test function please see chapter Auxiliary switches (Page 63). Switching to test position Test position is located 20 counterclockwise from the OFF position and is mechanically blocked to prevent accidental switching to test during normal switching from ON to OFF. Procedure: 1. Press the Test position - Pin with a sharp object (up to 2 mm diameter). 2. Hold the Pin down while the handle is turned to test position. Note The pin can also be used for overriding door locking in the ON position of the handle. 3KD switch disconnector 108 Manual, 10.2018, L1V30490761A-02 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Assignment of switching position between 8UD1 handle and 3KD To ensure the usual position of the 8UD1 handle ("OFF" on left, "ON" on top) the coupling drivers, shafts and the drive module of 3KD are equipped with a tongue-and-groove joint. If the 3KD is assembled, e.g. turned by 90, the location of OFF of the 8UD1 handle would be in top position - to move it to the left position, the tongue-and-groove joint can be modified at the coupling drivers and the shaft coupling in steps of 90. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 109 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Modification of tongue-and-groove joint at coupling driver Remove with tool such as screwdriver (push from inside) Reinsert from outside at any position desired 3KD switch disconnector 110 Manual, 10.2018, L1V30490761A-02 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism 8.4.5 Accessories for 8UD1 Shaft coupling The shaft coupling is used when the length of the shafts of 300 / 600 mm is not long enough and has to be extended. For 3KD sizes 1 to 4 A [ mm ] Frame size 1, 2, 3 8 mm 2.6 ... 3.0 Nm 28 4, 5 8 mm 5.4 ... 6.0 Nm 40 For 3KD size 5 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 111 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Shaft jack for 3KD size 1 and 2 The shaft jack can be used if the coupling head is too widely deflected and the cabinet door cannot be closed due to a mechanical collision between the coupling head and the 8UD1 handle. This accessory part is necessary if a 3KD is assembled onto a DIN rail and shafts longer than 300 mm are used. Frame size 1, 2 PZ2 1.0 Nm 3KD switch disconnector 112 Manual, 10.2018, L1V30490761A-02 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism Labeling plate The labeling plate with the order number 3VA9087-0SX10 can be used for inscription directly on the front cover of the 8UD1 handle. Size of the inscription area is 44.5 x 14.5 mm. Assembly Remove the knockout contours on the back of the 8UD1 front cover. Snap the labeling plate onto the 8UD1 front cover. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 113 Further accessories 8.4 8UD1 door-coupling rotary operating mechanism 3KD switch disconnector 114 Manual, 10.2018, L1V30490761A-02 Maintenance 9.1 9 Maintenance No maintenance procedures are necessary. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 115 Maintenance 9.1 Maintenance 3KD switch disconnector 116 Manual, 10.2018, L1V30490761A-02 Technical data 10.1 3-pole and 4-pole versions of 3KD switch disconnectors 1) Configuring note: Max. permissible operating temperature at connections 125C 2) Relevant only for devices with flat terminals 3) Under certain circumstances usage of phase barriers is mandatory - please see chapter Phase barriers 4) For more detailed information please see chapter Main circuit connection 5) 95 mm valid for variants with flat terminals 6) When using busbars that are 20 mm wide, these must be insulated 10 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 117 Technical data 10.1 3-pole and 4-pole versions of 3KD switch disconnectors 1) Under certain circumstances usage of phase barriers is mandatory - please see chapter Phase barriers 3KD switch disconnector 118 Manual, 10.2018, L1V30490761A-02 Technical data 10.1 3-pole and 4-pole versions of 3KD switch disconnectors 1) Under certain circumstances usage of phase barriers is mandatory - please see chapter Phase barriers 2) The values are provided as a guide only and may vary depending on the make of motor 3) Valid for the combination of 3KD and fuse type 3NA38 for Iu = 16 ... 160 A; 3NA31 for Iu = 200 A, characteristic gG 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 119 Technical data 10.1 3-pole and 4-pole versions of 3KD switch disconnectors 1) Configuring note: Max. permissible operating temperature at connections 125C 2) Under certain circumstances usage of phase barriers is mandatory - please see chapter Phase barriers 3) For more detailed information see chapter Main circuit connection 3KD switch disconnector 120 Manual, 10.2018, L1V30490761A-02 Technical data 10.1 3-pole and 4-pole versions of 3KD switch disconnectors 1) Under certain circumstances usage of phase barriers is mandatory - please see chapter Phase barriers 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 121 Technical data 10.1 3-pole and 4-pole versions of 3KD switch disconnectors 1) Under certain circumstances usage of phase barriers is mandatory - please see chapter Phase barriers 2) The values are provided as a guide only and may vary depending on the make of motor 3) Valid for the combination of 3KD and fuse type 3NA38 for Iu = 16 ... 160 A ...; 3NA31 for Iu = 200 A, characteristic gG 3KD switch disconnector 122 Manual, 10.2018, L1V30490761A-02 Technical data 10.2 6 pole versions of 3KD switch disconnectors for DC 1200 V 10.2 6 pole versions of 3KD switch disconnectors for DC 1200 V 1) Configuring note: Max. permissible operating temperature at connections 110 C 2) Valid for versions with box terminals, versions with flat terminals max. 1200 V 3) Valid for versions with box terminals, versions with flat terminals max. 1250 V 4) Relevant only for devices with flat terminals 5) For more detailed information see chapter Main circuit connection 6) When using busbars that are 20 mm wide, these must be insulated 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 123 Technical data 10.2 6 pole versions of 3KD switch disconnectors for DC 1200 V 3KD switch disconnector 124 Manual, 10.2018, L1V30490761A-02 Technical data 10.2 6 pole versions of 3KD switch disconnectors for DC 1200 V 1) Configuring note: Max. permissible operating temperature at connections 110 C 2) For more detailed information see chapter Main circuit connection 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 125 Technical data 10.2 6 pole versions of 3KD switch disconnectors for DC 1200 V 1) For switch disconnectors size 3 and 4, phase barriers or cable connection covers (accessories) are required when connecting cable lugs 3KD switch disconnector 126 Manual, 10.2018, L1V30490761A-02 Technical data 10.3 Technical data of accessories for 3KD 10.3 Technical data of accessories for 3KD 10.3.1 Additional poles Additional poles - 4th contact element, neutral terminal and N/PE terminal, have the same technical data as the corresponding main switch 3KD, please see chapter Technical data of 3-pole and 4-pole versions of 3KD switch disconnectors (Page 117). 10.3.2 Auxiliary switches Frame size 1 and 2 Type Auxiliary switch 1 CO Version Standard Solid state compatible Operating current At AC-12 / AC230 V A 5 - At AC-13 / AC230 V A - 0.1 At AC-15 / AC230 V A 2 - 0.2 - At AC-13 / AC230 V Electrical connection With soldered-on cable (finely stranded) 0.75 mm (18 AWG), 50 cm long or with blade terminals for conductor cross-section 0.5 - 1.5 mm (22 - 16 AWG). Frame size 3, 4 and 5 Standards IEC 60947-5-1, IEC 60947-5-5 General technical details Continuous free-air thermal current Ith A 10 Rated insulation voltage Ui V 500 At degree of pollution acc. to IEC 60947-1 Class 3 Rated impulse withstand voltage Ui kV 6 Switching frequency 1/h 3600 Contact reliability 1 maloperation per 10 million Test voltage V 5 Test current mA 1 Degree of protection acc. to IEC 60529 Terminals IP20 Contact room IP40 Ambient conditions Ambient temperature During operation C -25 ... + 70 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 127 Technical data 10.3 Technical data of accessories for 3KD During storage C Degree of pollution -25 ... + 80 3 Lifetime Mechanical 10 million Electrical 10 million Conductor connections Finely stranded, with end sleeves acc. to DIN 46228 mm 2 x (0.5 ... 1.5) Finely stranded, without end sleeves mm 2 x (1.0 ... 1.5) Solid mm 2 x (1 ... 1.5) Solid, with end sleeves acc. to DIN 46228 mm AWG cables Tightening torque 2 x (0.5 ... 0.75) 2 x AWG 18 ... 14 Nm 0.8 ... 0.9 Up to 110 V A 10 At 230 V, 400 V A 8 Up to 230 V A 6 At 400 V A 3 At 500 V A 1.4 At 24 V A 10 At 48 V A 5 At 110 V A 2.5 At 230 V A 1 At 400 V, 500 V A 0.3 At 24 V A 3 At 48 V A 1.5 At 110 V A 0.7 At 230 V A 0.3 At 400 V, 500 V A 0.1 Operating behavior Rated operational current Ie At AC-12 At AC-15 At DC-12 At DC-13 3KD switch disconnector 128 Manual, 10.2018, L1V30490761A-02 11 Dimension drawings and hole drilling templates 11.1 Distance to grounded parts and between two 3KD Frame size Terminal A [mm] B [mm] C [mm] D [mm] 1 Box terminal 0 10 10 0 2 Box terminal 0 10 10 0 Flat terminal 0 30 30 0 3 Flat terminal 20 40 40 20 4 Flat terminal 30 50 50 30 5 Flat terminal 30 50 50 30 WARNING Fire hazard. Some combinations of mounting position and load may cause flashovers between the terminals if no phase barriers or cable connection covers are used. Use phase barriers or cable connection covers if applicable according to chapter Phase barriers (Page 50) Note Dimensions A and D can be reduced to 0 mm if phase barriers or cable connection covers are assembled to the 3KD. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 129 Dimension drawings and hole drilling templates 11.1 Distance to grounded parts and between two 3KD Frame size Terminal A [mm] B [mm] 1 Box terminal 0 - Box terminal 0 - Flat terminal 0 8 Flat terminal 0 14 2 3, 4, 5 3KD switch disconnector 130 Manual, 10.2018, L1V30490761A-02 Dimension drawings and hole drilling templates 11.2 Drilling templates 11.2 Drilling templates This chapter describes the drilling templates for floor mounting and door-coupling rotary operating mechanisms. Note Scale The drilling templates in this chapter are not in scale 1:1. Drilling template for 3KD floor mounting Frame size 1 Poles Terminal 3 4 6 3 2 4 6 1) A [mm] B [mm] C [mm] D [mm] E [mm] F [mm] Box terminal 94 109 119.6 46.5 119 M4 Box terminal 112 127 137.6 46.5 119 M4 Box terminal 148 163 173.6 46.5 119 M4 Box terminal 121 136 146.6 46.5 Flat terminal 121 136 146.6 46.5 Box terminal 148 163 173.6 46.5 126 M4 Flat terminal 148 163 173.6 46.5 130 1) M4 Box terminal 202 217 227.6 46.5 126 M4 Flat terminal 202 217 227.6 46.5 130 M4 126 130 M4 1) M4 Without phase barriers Frame sizes 1 and 2 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 131 Dimension drawings and hole drilling templates 11.2 Drilling templates Frame size 3 4 1) Poles A [mm] B [mm] C [mm] D [mm] E [mm] F 1) [mm] G [mm] H [mm] J [mm] K [mm] 3 167 190 200 208 65 100 110 118 M4 - 4 211 234 244 252 65 100 110 118 M4 - 6 299 323 332 340 65 100 110 118 M4 35 3 228 260 279 291 93 145 161 173 M6 - 4 288 320 339 351 93 145 161 173 M6 - 6 408 440 459 471 93 145 161 173 M6 48 Dimension of the body of the switch (without phase barriers and terminal bars) Frame sizes 3 and 4 Frame size 5 Poles A [mm] B [mm] C [mm] D [mm] 3 340 382 - M8 4 430 472 - M8 6 610 652 70 M8 Dimension of the body of the switch (without phase barriers and terminal bars) Frame sizes 5 3KD switch disconnector 132 Manual, 10.2018, L1V30490761A-02 Dimension drawings and hole drilling templates 11.2 Drilling templates Drilling templates for 8UD1 door-coupling rotary operating mechanisms (For assembly of the handle in the cabinet door or side wall) Frame size A [ mm ] B [ mm ] C [ mm ] D [ mm ] 1, 2 65 10.5 O 30 O 4.5 3, 4, 5 88 13.5 O 65 O 5.5 Note Illuminated 8UD1 The hole diameter of 3 mm is only necessary if an illuminated version of 8UD1 is used. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 133 Dimension drawings and hole drilling templates 11.3 Dimensional drawings 11.3 Dimensional drawings Basic units The following dimensions are measured in units of mm. 3KD, frame size 1 and 2, front operation with box terminal Mounting depth of shaft of door-coupling rotary operating mechanism is: Min.15, Max. 20 Possible configuration Version A [mm] B [mm] C [mm] D [mm] E [mm] F [mm] G [mm] Frame size 1, 3-pole 94 109 119.6 18 119 18.4 9.6 Frame size 1, 4-pole 112 127 137.6 18 119 18.4 9.6 Frame size 1, 6-pole DC 148 163 173.6 18 119 18.4 9.6 Frame size 2, 3-pole 121 136 146.6 27 126 15.8 13.4 Frame size 2, 4-pole 148 163 173.6 27 126 15.8 13.4 Frame size 2, 6-pole DC 202 217 227.6 27 126 15.8 13.4 Note Additional dimensions for complete units with direct handle, please see accessories of direct handle. 3KD switch disconnector 134 Manual, 10.2018, L1V30490761A-02 Dimension drawings and hole drilling templates 11.3 Dimensional drawings 3KD, Frame size 1 and 2, side operation with box terminal Mounting depth of shaft of door-coupling rotary operating mechanism: Min. 15, Max. 20 Version A [mm] B [mm] C [mm] D [mm] Frame size 1, 3-pole 103.3 114.3 118.3 128.9 Frame size 1, 4-pole 121.3 132.3 136.3 146.9 Frame size 2, 3-pole 130.3 141.3 145.3 155.9 Frame size 2, 4-pole 157.3 168.3 172.3 182.9 Possible configurations Assembly position of auxiliary switch Operation from left side Operation from right side Note * For additional dimensions see drawing for front operated version. * The axis of rotation on the front side is only for indication of switch position - an 8UD1 handle can only be assembled at the side. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 135 Dimension drawings and hole drilling templates 11.3 Dimensional drawings 3KD, Frame size 2, with flat terminal Mounting depth of shaft of door-coupling rotary operating mechanism is: Min.15, Max. 20 Version A [mm] B [mm] C [mm] X [mm] 3-pole 121 136 146.6 2.5 4-pole 148 163 173.6 2.5 6-pole DC 202 217 227.6 2.5 Possible configurations Note Additional dimensions for complete units with direct handle, please see accessories of direct handle. 3KD switch disconnector 136 Manual, 10.2018, L1V30490761A-02 Dimension drawings and hole drilling templates 11.3 Dimensional drawings 3KD, frame size 2, side operation with flat terminal Mounting depth of shaft of door-coupling rotary operating mechanism: Min.15, Max. 20 Version A [mm] B [mm] C [mm] D [mm] 3-pole 130.3 141.3 145.3 155.9 4-pole 157.3 168.3 172.3 182.9 Possible configurations Assembly position of auxiliary switch Operation from left side Operation from right side Note * Additional dimensions see drawing for front operated version. * The axis of rotation on the front side is only for indication of switch position - an 8UD1 handle can only be assembled at the side. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 137 Dimension drawings and hole drilling templates 11.3 Dimensional drawings 3KD, frame size 3 and 4, with flat terminal Auxiliary switch Possible configuration Mounting depth of shaft of door-coupling rotary operating mechanism for size 3 is: Min. 38, Max. 48; for size 4 is: Min. 50, Max. 60 Aux switch type 3SU1400-1AA10-1BA0 3SU1400-1AA10-1DA0 3SU1400-1AA10-1CA0 3SU1400-1AA10-1EA0 3SU1400-1AA10-1FA0 3KD frame size X [mm] Y [mm] Z [mm] 3 128 38.2 33.2 4 173 51.3 33.2 3 150 37.7 34.1 4 196 50.8 34.1 3 128 38.2 33.2 4 173 51.3 33.2 3 150 37.7 34.1 4 196 50.8 34.1 3 150 37.7 34.1 4 196 50.8 34.1 3KD switch disconnector 138 Manual, 10.2018, L1V30490761A-02 Dimension drawings and hole drilling templates 11.3 Dimensional drawings Version Frame size 3, 3-pole Frame size 3, 4-pole Frame size 3, 6-pole DC Frame size 4, 3-pole Frame size 4, 4-pole Frame size 4, 6-pole DC A [ mm ] 167 211 299 228 288 408 B [ mm ] 190 234 323 260 320 440 C [ mm ] 200 244 332 279 339 459 D [ mm ] 208 252 340 291 351 467 E [ mm ] 65 65 65 93 93 93 F [ mm ] 100 100 100 145 145 145 G [ mm ] 110 110 110 161 161 161 H [ mm ] 131 131 131 187 187 187 J [ mm ] 164 164 164 235 235 235 K [ mm ] O11 O11 O11 O14 O14 O14 L [ mm ] 30 30 30 40 40 40 M [ mm ] 44 44 44 60 60 60 N [ mm ] 22 22 22 30 30 30 O [ mm ] 7 7 7 10 10 10 P [ mm ] M4 M4 M4 M6 M6 M6 Q [ mm ] 47 47 47 67.5 67.5 67.5 R [ mm ] 40 40 40 46.5 46.5 46.5 S [ mm ] 4 4 4 8 8 8 T [ mm ] 6 6 6 8 8 8 U [ mm ] 85.5 85.5 85.5 101.5 101.5 101.5 V [ mm ] 93.5 93.5 93.5 110 110 110 Note For additional dimensions for complete units with direct handle, please see accessories of direct handle. For additional dimensions for 3KD with side operation (position of shaft), please see accessories of door-coupling rotary operating mechanisms. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 139 Dimension drawings and hole drilling templates 11.3 Dimensional drawings 3KD, frame size 3 and 4, side operation from right side Assembly place for auxiliary switches Mounting depth of shaft of door-coupling rotary operating mechanism for size 3 is: Min. 21, Max. 31; for size 4 is: Min. 35, Max. 45 Version A [mm] B [mm] C [mm] Frame size 3 25 39.5 8.5 Frame size 4 38.5 43 11 Note * For additional dimensions please see drawing for front operated version. * The axis of rotation on the front side (dimensions E and F) is only for indication of switch position - an 8UD1 handle can only be assembled at the side. 3KD switch disconnector 140 Manual, 10.2018, L1V30490761A-02 Dimension drawings and hole drilling templates 11.3 Dimensional drawings 3KD, frame size 3 and 4, side operation from left side Assembly place for auxiliary switches Mounting depth of shaft of door-coupling rotary operating mechanism for size 3 is: Min. 21, Max. 31; for size 4 is: Min. 35, Max. 45 Version A [mm] B [mm] C [mm] Frame size 3 25 39.5 8.5 Frame size 4 38.5 43 11 Note * For additional dimensions see drawing for front operated version. * The axis of rotation on the front side (dimensions E and F) is only for indication of switch position - an 8UD1 handle can only be assembled at the side. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 141 Dimension drawings and hole drilling templates 11.3 Dimensional drawings 3KD, frame size 5, with flat terminal Auxiliary switch Mounting depth of shaft of door-coupling rotary operating mechanism is: Min. 78, Max. 88 Version D [mm] E [mm] F [mm] G [mm] 3-pole 340 360 366 382 4-pole 430 450 456 472 6-pole DC 610 - - 652 Aux switch type A [mm] B [mm] C [mm] 3SU1400-1AA10-1BA0 208 33.2 83.4 3SU1400-1AA10-1DA0 230 34.1 82.9 3SU1400-1AA10-1CA0 208 33.2 83.4 3SU1400-1AA10-1EA0 230 33.2 83.4 3SU1400-1AA10-1FA0 230 33.2 83.4 Note * For additional dimensions for complete units with direct handle, please see accessory of direct handle * For additional dimensions for 3KD with side operation (position of shaft), please see accessories of door-coupling rotary operating mechanisms. 3KD switch disconnector 142 Manual, 10.2018, L1V30490761A-02 Dimension drawings and hole drilling templates 11.3 Dimensional drawings 3KD, frame size 5, side operation from right side Assembly place for auxiliary switches Mounting depth of shaft of door-coupling rotary operating mechanism is: Min. 54, Max. 64 Note * Additional dimensions see drawing for front operated version. * The axis of rotation on the front side (dimensions E and F) is only for indication of switch position - an 8UD1 handle can only be assembled at the side. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 143 Dimension drawings and hole drilling templates 11.3 Dimensional drawings 3KD, frame size 5, side operation from left side Assembly place for auxiliary switches Mounting depth of shaft of door-coupling rotary operating mechanism is: Min. 54, Max. 64 Note * For additional dimensions see drawing for front operated version. * The axis of rotation on the front side (dimensions E and F) is only for indication of switch position - an 8UD1 handle can only be assembled at the side. 3KD switch disconnector 144 Manual, 10.2018, L1V30490761A-02 Dimension drawings and hole drilling templates 11.3 Dimensional drawings Accessory: 4th pole, N terminal, N/PE terminal 3KD, frame size 1 and 2, with box terminal 3KD, frame size 1 and 2, with flat terminal Optional assembly position Box terminal Flat terminal Frame size A [ mm ] 1 18 2 27 2 27 3 44 4 60 5 90 Note Assembly of 4th pole is only possible on 3-pole 3KD, for additional dimensions (side view and terminal) - please see basic units. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 145 Dimension drawings and hole drilling templates 11.3 Dimensional drawings Accessory: auxiliary switch module Auxiliary switch module for frame size 1 and 2 Note Auxiliary switch modules with test functionality can only be assembled directly next to the drive module of the 3KD. 3KD switch disconnector 146 Manual, 10.2018, L1V30490761A-02 Dimension drawings and hole drilling templates 11.3 Dimensional drawings Accessory: Phase barriers Phase barriers for frame size 2 Phase barriers for frame size 3 and 4 Frame size A [mm] B [mm] C [mm] D [mm] 3 313 253 106.5 68 4 389 317 122 75 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 147 Dimension drawings and hole drilling templates 11.3 Dimensional drawings Phase barriers for frame size 5 3KD switch disconnector 148 Manual, 10.2018, L1V30490761A-02 Dimension drawings and hole drilling templates 11.3 Dimensional drawings Accessory: cable connection cover Cable connection covers for frame sizes 2 to 5 Frame size 2 3 4 5 Version A [mm] B [mm] C [mm] Standard 240 78 52 Short 194 55 52 Standard 317 108.5 81 Short 218 59 81 Standard 401 128 93.5 Short 280 67.5 93.5 Standard 450 135 117.5 Note The cable connection covers can also be assembled to the drive module of the 3KD (to cover assembled auxiliary switches). 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 149 Dimension drawings and hole drilling templates 11.3 Dimensional drawings Accessory: direct handle Direct handle for frame size 1 and 2, standard version Frame size A [mm] B [mm] C [mm] D [mm] E [mm] F [mm] G [mm] 1 104 87 60 45 42 6.2 79 2 118 97 73 58 55 6.2 89 Note Can be locked with up to 3 padlocks, needs additional depth in locked position, for dimension for axis of rotation - please see basic unit. 3KD switch disconnector 150 Manual, 10.2018, L1V30490761A-02 Dimension drawings and hole drilling templates 11.3 Dimensional drawings Direct handle for frame size 1 and 2, flat version Padlocked position Frame size A [mm] B [mm] C [mm] D [mm] E [mm] 1 78 57 42 6.2 70 2 97 73 55 6.2 89 Note Can be locked with one padlock, needs no additional depth in locked position, for dimension for axis of rotation - please see basic unit. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 151 Dimension drawings and hole drilling templates 11.3 Dimensional drawings Direct handle for frame size 3 Note Can be locked with up to 3 padlocks, needs additional depth in locked position, for dimension for axis of rotation - please see basic unit. 3KD switch disconnector 152 Manual, 10.2018, L1V30490761A-02 Dimension drawings and hole drilling templates 11.3 Dimensional drawings Direct handle for frame size 4 and 5 Frame size A [mm] B [mm] C [mm] D [mm] E [mm] F [mm] 4 185 171.5 140 8.2 166.5 55 5 231 247 200 8.5 212.5 84 Note Can be locked with up to 3 padlocks, needs additional depth in locked position, for dimension for axis of rotation - please see basic unit. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 153 Dimension drawings and hole drilling templates 11.3 Dimensional drawings Accessory: 8UD1 door-coupling rotary operating mechanism Handle of 8UD1 door-coupling rotary operating mechanism for frame size 1 Handle of 8UD1 door-coupling rotary operating mechanism for frame size 2 Handle of 8UD1 door-coupling rotary operating mechanism for frame size 3 to 5 Frame size A [mm] B [mm] 3 106 13 4 140 13 5 200 15 3KD switch disconnector 154 Manual, 10.2018, L1V30490761A-02 A Appendix A.1 Standards and approvals Standards Series 3KD switch disconnectors confirm to the following international standards. IEC 60947-3 Switches, disconnectors, switch-disconnectors and fuse-combination units DIN EN 60947-3 IEC 60947-1 Low-voltage switchgear and controlgear - Part 1: General rules DIN EN 60947-1 GB14048.3 Switches, Load breakers, disconnectors (CCC) IEC 60947-1 Special tests - Damp heat, salt mist, vibration and shock Annex Q category=E IEC 60947-5-1 Auxiliary contacts GB14048.5 DIN EN 60947-5 DIN 43880 DIN EN 60715 Built in equipment for electrical installations Dimensions of low-voltage switchgear and controlgear Standardized mounting on rails for mechanical support of electrical devices in switchgear and controlgear installations DIN 46234 Terminal ends for solderless connections, ring type, without insulating sleeve, for copper conductors DIN 46235 Press-sockets for solderless connections for copper conductors DIN 46206-2 Supply-terminals for electrical equipment 40 A; connections with rectangular cross-section, basic dimensions and coordination Directives EC directives: Low-voltage directive EMC directive Machinery directive Certifications 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 155 Appendix A.1 Standards and approvals Environmental compatibility All materials used are environmentally compatible, taking account of "Hazardous substances, list of prohibited substances, list of substances to be avoided" (SN 36350). Please go to following link for further technical support (https://support.industry.siemens.com/cs/ww/en/ps/19666). 3KD switch disconnector 156 Manual, 10.2018, L1V30490761A-02 List of abbreviations B.1 B Table of abbreviations Summary Table B- 1 Meaning of abbreviations used in this document Abbreviation Meaning AC AC voltage ATSE Automatic Transfer Switching Equipment AUX Auxiliary switch C Common DC Direct voltage DIN Deutsches Institut fur Normierung e. V. (German Institute for Standardization) ESD Electrostatic sensitive devices EMC Electromagnetic compatibility EN European Standard IEC International Electrotechnical Commission IP International Protection LBS Load Break Switch (switch disconnector) N Neutral conductor NC Normally closed contact NEMA National Electrical Manufacturers Association NFPA National Fire Protection Association NO Normally open contact LV Low voltage LV fuse Low-voltage fuse R RESET RMS Root Mean Square T Test UL Underwriters Laboratories Inc. VDE Verein Deutscher Ingenieure (Association of German Electrical Engineers) VDI Verein Deutscher Ingenieure (Association of German Engineers) 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 157 List of abbreviations B.1 Table of abbreviations Table B- 2 Meaning of symbols and abbreviations Symbol / Abbreviation Meaning I2 t Let-through energy Icm Making capacity; rated short-circuit making capacity Icn Rated breaking capacity; rated short-circuit breaking capacity Ics Maximum short-circuit breaking capacity (partial selectivity); rated service short-circuit breaking capacity Icu Maximum short-circuit breaking capacity (full selectivity); rated ultimate short-circuit breaking capacity Icw Rated short-time withstand current; rated short-time current Ic Let-through current Ik Short-circuit current IKD Uninterrupted short-circuit current IK MAX Maximum short-circuit current Ie Rated operational current IP Rated peak withstand current, impulse short-circuit current Isc Prospective current Ith Conventional free-air thermal current IU Rated uninterrupted current U Voltage across main contacts Ue Maximum voltage; rated operating voltage 3KD switch disconnector 158 Manual, 10.2018, L1V30490761A-02 C Conversion tables The U.S. units can be converted to the corresponding European/metric units using the conversion tables listed. Note No liability assumed for completeness or accuracy. No liability can be assumed for the completeness or accuracy of the values listed in this section of the manual. Conversion of North American cross-section dimensions into metric cross-section dimensions Metric cross-sections in accordance with VDE (Verband Deutscher Elektroingenieure (Association of German Electrical Engineers)) (mm2) conductor cross-sections in accordance with AWG (American wire Gauge) or kcmil (Thousand Circular Mils) AWG mm2 conversion table AWG AWG / kcmil Diameter d / mm mm2 Metric equivalent [mm2] 20 0.81 1) 0.52 0.75 18 1.02 0.82 1 16 1.29 1) 1.3 1.5 14 1.63 1) 2.08 2.5 12 2.05 1) 3.31 4 10 2.59 1) 5.26 6 8 3.26 1) 8.4 10 6 4.12 1) 13.3 16 4 5.19 1) 21.2 25 2 6.54 1) 33.6 35 1 7.34 1) 42.4 50 1/0 8.25 1) 53.5 - 2/0 9.27 1) 67.4 70 3/0 10.4 1) 85.0 95 4/0 11.68 107 120 1) 1) 1) Diameter over Solid Conductors and Cross-Sectional Area for All Solid and Stranded Conductors. Source: Standard UL 83 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 159 Conversion tables Kcmil mm2 conversion table AWG / kcmil Kcmil Diameter d / mm 250 14.6 300 16 mm2 126 1) 152 1) 350 17.3 1) 177 400 18.49 1) 203 500 20.65 1) 253 600 22.68 1) 304 800 26.16 1) 405 1000 29.26 1) 507 1500 35.86 1) 760 2000 41.45 1) 1010 1) Diameter over Round Concentric-Lay-Stranded Conductors for Classes B, C and D. Source: Standard UL 83 Other conversions Conversion factors for units of length Length Conversion factor 1 inch ('') 25.4 millimeters (mm) 1 centimeter 0.3937 inch ('') Conversion factors for units of weight Weight Conversion factor 1 ounce (Oz.) 28.35 grams (g) 1 pound (Ib.) 0.454 kilograms (kg) 1 kilogram (kg) 2.205 pounds (Ib.) Pound (Ib.) 3KD switch disconnector 160 Manual, 10.2018, L1V30490761A-02 Conversion tables Conversion factors for units of temperature Temperature 100 degrees Centigrade (C) 212 degrees Fahrenheit (C) 80 C 176 F 60 C 140 F 40 C 104 F 20 C 68 F 0 C 32 F - 5 C 23 F - 10 C 14 F - 15 C 5 F - 20 C - 4 F - 25 C - 13 F - 30 C - 22 F Conversion factors for tightening torques Tightening torque Conversion factor 1 Newton meter (Nm) 8.85 Ib F in, 8.85 Ib-in (inch-pound) 1.36 Newton meter (Nm) 1 Ib F ft, 1 Ib-ft (inch-pound) 0.113 Newton meter (Nm) 1 Ib F in, 1 Ib-in (inch-pound) 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 161 Conversion tables 3KD switch disconnector 162 Manual, 10.2018, L1V30490761A-02 Glossary Breaking capacity The breaking capacity is the rms value of the current at a specific cos (power factor) and a specific voltage which can be safely interrupted by a switching device or fuse under prescribed conditions. The rms value of the symmetrical component applies in the case of alternating current. I2t characteristic The I2t characteristic is a curve which represents the minimum or maximum values of I2t in relation to breaking times as a function of the prospective current under defined operating conditions. I2t value The I2t value is the thermal value of a prospective or a limited short-circuit current (letthrough current). Let-through current The let-through current ID is the maximum instantaneous current value during the breaking time of a switching device or fuse. Limited short-circuit currents occur if the switching device reduces the amplitude of the short-circuit current due to, for example, resistance, switching delay and peak arc voltage. The let-through current of a device such as a current-limiting fuse or a current-limiting molded case circuit breaker determines the thermal load (I2t value) imposed on equipment connected downstream of the device (current limiting). Making capacity The making capacity is the value of the prospective making current which the switching device can safely conduct at the instant of closing under prescribed conditions for a specific circuit. For load break switches, the making capacity is expressed as the maximum possible instantaneous value of the potential prospective current at the input terminals for the specified voltage. Rated breaking capacity The rated breaking capacity is the maximum current that can be interrupted by a switching device under certain conditions. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 163 Glossary Rated frequency Design frequency for a switching device and reference value for other characteristics of the device. Rated making capacity The rated making capacity is the maximum current that a switching device can conduct at the instant of closing in accordance with the utilization category at the relevant rated operational voltage. Rated operational current The rated operational current In for molded case circuit breakers is equivalent to the rated uninterrupted current IU and to the conventional free-air thermal current Ith. Rated operational voltage The rated operational voltage Ue of a switching device, e.g. a molded case circuit breaker, is the voltage which serves as a reference to state other characteristics of the device. The maximum rated operational voltage must never be higher than the rated insulation voltage. With multi-phase circuits, the specified voltage is generally the phase-to-phase voltage. Rated peak withstand current, impulse short-circuit current Maximum rated operational voltage must never be higher than the rated insulation voltage. The current path under the highest load. It characterizes the dynamic short-circuit strength of a switching device. Rated service short-circuit breaking capacity The rated service short-circuit breaking capacity Ics is the short-circuit current determined by the operational voltage that a load break switch is capable of interrupting repeatedly (test sequence O - CO - CO, formerly P - 2). After a load break switch has interrupted a short circuit, it can continue to carry the rated operational current despite increased self-heating. Rated short-circuit breaking capacity The rated short-circuit breaking capacity Icn of a molded case circuit breaker is the maximum current that the circuit breaker can safely interrupt at a specific rated operational voltage and rated frequency. It is specified as an rms value. With AC molded case circuit breakers, the rated short-circuit breaking capacity must be independent of the magnitude of the DC component. The rated short-circuit breaking capacity also ensures that the molded case circuit breaker can interrupt every current up to the rated short-circuit breaking capacity in the event of a line-frequency recovery voltage with 110% of the rated operational voltage. This applies: 3KD switch disconnector 164 Manual, 10.2018, L1V30490761A-02 Glossary To alternating current at every value of the power factor, but not lower than the value defined in the relevant test specification. To direct current (unless otherwise specified by the manufacturer) with every time constant, but not greater than the value defined in the relevant test specification. The short-circuit breaking capacity does not apply in the event of a recovery voltage at line frequency above 110% of the rated operational voltage. Rated short-circuit making capacity The rated short-circuit making capacity Icm of a molded case circuit breaker is the maximum current that the circuit breaker can safely interrupt at a specific rated operational voltage and rated frequency. Unlike other characteristic data, this is specified as a peak value. With AC molded case circuit breakers, the rated short-circuit making capacity must be at least equal to the rated short-circuit breaking capacity multiplied by a factor n. The rated short-circuit making capacity is calculated to allow the molded case circuit breaker to conduct the current during closing at a voltage of up to 110% inclusive of the rated operational voltage. Rated short-time current Permissible rms value of the AC component of the prospective short-circuit current which the switching device is capable of conducting for a specific time period, e.g. from 0.05 s to 1 s (thermal short-circuit strength). Rated short-time withstand current The rated short-time withstand current Icw is specified as an rms value of the short-circuit current and characterizes the thermal strength of a circuit of a switchgear assembly under brief load conditions. The rated short-time withstand current calculation normally refers to a period of 1 s. The reference time must be specified if it deviates from the above. The rated short-time withstand current is specified for the distribution and/or main busbars of a switchgear assembly. Rated ultimate short-circuit breaking capacity The rated ultimate short-circuit breaking capacity Icu is the maximum short-circuit current that a load break switch is capable of interrupting (test sequence O - CO, formerly P - 1). Limit value of rated ultimate short-circuit breaking capacity Icu. The rated ultimate short-circuit breaking capacity Icu is the maximum value of the short-circuit current which the protective device is capable of disconnecting in accordance with regulations. Up to this value, the protective device is also allowed to be used in a network. Rated uninterrupted current The rated uninterrupted current IU of a switching device, e.g. a molded case circuit breaker, is a current that the device can conduct in uninterrupted operation (for weeks, months or years). This current is specified by the manufacturer. 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 165 Glossary Rating The rating is the power that a switching device is capable of switching at the associated rated operational voltage in accordance with the utilization category, e.g. power contactor utilization category AC-3:37 kW at 400 V. Short circuit Connection with a negligibly low impedance between two points of different potential in an electric circuit. The short-circuit current is a multiple of the rated operating current. Short circuits can cause thermal or mechanical damage to switching devices and other parts of an electrical installation. Short-circuit strength This is the resistivity of a switching device in the closed state, along with its components (e.g. trip units), or a complete switchboard to the electrodynamic and thermal stresses which arise in the event of a short circuit. The characteristic for the dynamic stress is the rated peak withstand current, which is the maximum instantaneous value of the short-circuit current. The characteristic for the thermal stress of the short-circuit current is the root-mean-square value of the short-circuit current throughout its duration. 3KD switch disconnector 166 Manual, 10.2018, L1V30490761A-02 Index 3 3 pole and 4 pole Technical data, 118 4 4th contact element, 74 4th pole, N-Terminal, N-/PE-Terminal Dimension, 145 6 6 pole Technical data, 123, 124, 125, 126 Assembly position Auxiliary switch, 68 Assignment of switching position, 109 Auxiliary switch Assembly of auxiliary switch, 67 Assembly position, 68 Frame size 1 and 2, 24, 57 Frame size 3, 4 and 5, 24, 58 Test function, 65, 66, 68 Auxiliary switch module, 146 Auxiliary switches Technical data, 128 Available poles, 74 Auxiliary switch module, 74 N-/PE-terminal, 74 N-terminal, 74 B 8 8UD1 Component overview, 91 Dimension, 154 Disabling door interlock, 103 Door interlock, 101 Drilling template, 133 Enabling padlocking, 107 Overview door interlock, 104 Shaft coupling, 111 Shaft jack, 112 Test function, 108 A Accessory Order numbers, 29 Additional poles N-/PE terminal, 21 Assembly Phase barrier, 54 Assembly of 8UD1, 94 Assembly of additional pole, 81 Assembly of auxiliary switch Auxiliary switch, 67 Assembly of direct operating mechanism Frame size 1 and 2, 87 Frame size 3, 4 and 5, 89 Box terminal Technical data, 46 Bridging bar, 50 C Cabinet door, 100 Drilling template, 93 Cable connection cover, 56 Dimension, 149 Cable connection covers, 26 Calculate length of shaft Front operated 3KD, 95 Side operated 3KD, 96 Circuit diagram, 44 Component overview 8UD1, 91 Connection types, 18 Contact number Frame size 1 and 2, 61 Frame size 3, 4 and 5, 61 Coupling driver, 97 D Dimension, 135, 135, 136, 137, 139, 140, 141, 142, 14 3, 144 4th pole, N-Terminal, N-/PE-Terminal, 145 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 167 Index 8UD1, 154 Auxiliary switch module, 146 Cable connection cover, 149 Direct handle, 150 Phase barrier, 147 DIN rail Frame size 1 and 2, 40 Direct handle Dimension, 150 Direct operating mechanism, 20, 22 Padlocking, 85 Versions, 84 Disabling door interlock 8UD1, 103 Disabling of test function, 69 Door interlock 8UD1, 101 Door-coupling operating mechanism, 23 Drilling template 8UD1, 133 Cabinet door, 93 Frame 1 and 2, 36 Frame size 1 and 2, 131 Frame size 3 and 4, 38, 132 Frame size 5, 39, 133 E Enabling of test function, 69 Enabling padlocking 8UD1, 107 Enabling test function, 72 Frame size 1 and 2, 70 Frame size 3, 4 and 5, 72 Exploded view Frame size 1 and 2, 27 Frame size 3, 4 and 5, 28 F Flat terminal, 49 Technical data, 49 Floor mounting Frame 1 and 2, 35 Frame size 3 and 4, 37 Frame size 5, 40 Mounting, 17 Frame 1 and 2 Drilling template, 36 Frame 1 and 2 Floor mounting, 35 Frame size 1 and 2 Assembly of direct operating mechanism, 87 Auxiliary switch, 24, 57 Contact number, 61 DIN rail, 40 Drilling template, 131 Enabling test function, 70 Exploded view, 27 Possible assembly position, 75 Release hooks, 42 Frame size 3 and 4 Drilling template, 38, 132 Floor mounting, 37 Frame size 3, 4 and 4 Assembly of direct operating mechanism, 89 Frame size 3, 4 and 5, 72, 77 Auxiliary switch, 24, 58 Contact number, 61 Exploded view, 28 Frame size 5 Drilling template, 39, 133 Floor mounting, 40 Front operated 3KD Calculate length of shaft, 95 L Label, 33 Labeling plate assembly, 113 M Manual operation, 32 Mounting Floor mounting, 17 Standard mounting, 17 Mounting position, 34 N N terminal Reassemble the jumper, 83 Remove the jumper, 82 N-/PE terminal Additional poles, 21 3KD switch disconnector 168 Manual, 10.2018, L1V30490761A-02 Index O Order numbers Accessory, 29 Switches, 29 Overview door interlock 8UD1, 104 P Padlocking Direct operating mechanism, 85 Performance features, 13 Phase barrier, 25 Assembly, 54 Dimension, 147 Possible assembly position, 77 Frame size 1 and 2, 75 Frame size 3, 4 and 5, 77 Test function 8UD1, 108 Auxiliary switch, 65, 66, 68 Test position, 32 Tolerance compensation, 105 Tongue-and-groove, 110 V Versions Direct operating mechanism, 84 R Reassemble the jumper N terminal, 83 Release hooks Frame size 1 and 2, 42 Remove the jumper N terminal, 82 S Safety distance, 130 Shaft coupling 8UD1, 111 Shaft jack 8UD1, 112 Side operated 3KD Calculated length of shaft, 96 Standard mounting Mounting, 17 Switches Order numbers, 29 Switching instant, 63, 68 T Technical data, 49 3 pole and 4 pole, 118 6 pole, 123, 124, 125, 126 Auxiliary switches, 128 Box terminal, 46 3KD switch disconnector Manual, 10.2018, L1V30490761A-02 169 Index 3KD switch disconnector 170 Manual, 10.2018, L1V30490761A-02