LOK4140-2RLDG - BEL POWER SOLUTIONS

BCD20035-G Rev AA, 25-Feb-09 Page 1 of 12 www.power-one.com

LOS, LOR, LOK4000 Series Data Sheet

DIN-Rail Mountable AC-DC (DC-DC) Converters

15, 30, 50 Watt AC-DC (DC-DC) Converters Convert Simply

Description

The Convert Simply front-end converters represent a family of

15, 30, and 50 watt DIN-rail mountable AC-DC converters for

use as rectifiers or battery chargers. Plastic casing, compact

size, and high reliability make the LOS, LOR, LOK4000 Series

an excellent choice for space-critical applications, where a

DIN-Rail mountable AC-DC converter is required. The

universal input range and a built-in input filter allow flexible

operation in a wide variety of electronic equipment and

enables worldwide connection to the mains.

The converters are available as rectifiers with 12 V, 24 V, or 48

V single output and as battery chargers for 12 V, 24 V, or 48 V

batteries. The output voltage of LOK converters can be

adjusted via the R input.

Safety approvals fully comply with worldwide requirements.

Applications

Typical applications are: powering building controls, factory

automation, industrial controls, instrumentation, electromag-

netic drives, fans, and other DC loads.

Safety according to IEC/EN 60950-1 1

, UL/CSA 60950-1,

and UL 508 2

1 LOK 2 LOS/LOR

odu

Features

• RoHS lead-free-solder and lead-solder-exempted

products available

• Universal input range 100 – 240 VAC nominal

• Additional DC input 90 – 250 VDC

• Class I equipment

• Single output 5.1, 12, 24, or 48 VDC

• Extremely compact design

• Battery charger versions

• Operating ambient temperature range –10 to 50 °C

with convection cooling

• Short-circuit and no-load proof

Table of Contents Page

Description ....................................................................... 1

Model Selection ............................................................... 2

Functional Description ..................................................... 3

Electrical Input Data ......................................................... 3

Electrical Output Data ...................................................... 4

Auxiliary Functions ........................................................... 6

Electromagnetic Compatibility (EMC) .............................. 7

Mechanical Data .............................................................. 8

Immunity to Environmental Conditions ............................. 8

Safety and Installation Instructions .................................. 9

Description of Options .................................................... 11

EC Declaration of Conformity LOS/LOR ........................ 12

Page

BCD20035-G Rev AA, 25-Feb-09 Page 2 of 12 www.power-one.com

LOS, LOR, LOK4000 Series Data Sheet

DIN-Rail Mountable AC-DC (DC-DC) Converters

Part Number Description

Series 15 W .................................................... LOS 4 LOK 4 3 0 1 -2 R L D F K G

30 W .................................................... LOR 4

50 W .................................................... LOK 4

Output 5.1 V rectifier version ............................... 001

12 V rectifier version ................................ 301

24 V rectifier version ................................ 601

48 V rectifier version ................................ 801

12 – 15 V battery charger ........................ 140

24 – 30 V battery charger ........................ 240

48 – 60 V battery charger ........................ 740

other voltages or specs. .................... 02 – 99

Ambient temperature range TA:

–10 to 50 °C ............................................... -2 3

Features and options:

Output voltage control input ........................ R 2

Rectangular output characteristic ................ L 1

Output voltage OK signal ............................ D 1

Built-in second fuse (option) ........................ F 2

K system connector (option) ........................ K

RoHS compliant for all 6 substances .......... G 4

1Battery chargers and LOK4001-2RLD

2LOK models only

3Up to 70 °C with derating

4G is always placed at the end of the part number.

Examples: LOK4140-2RLD: AC-DC converter, battery charger version, providing 12 - 15 V/3.6 A at the output

LOK4601-2R: AC-DC converter, rectifier version, providing 24 V/2 A, 48 W at the output

Model Selection

Table 1: Type survey

Output Operating Rated power1Efficiency 5Model Options 4

Vo nom Io nom input voltage1TA = 50 °C

[VDC] [A] Po tot [W] ηtyp [%]

5.1 5.2 26 70 LOK4001-2RLD

12 1.25 15 74 LOS4301-2

12 2.5 30 80 LOR4301-2

12 4 85 - 264 VAC 48 82 LOK4301-2R

12 - 12.84 3 - 15 3.6 47 - 63 Hz 49 82 LOK4140-2RLD F 2, K, G

24 0.65 90 - 250 VDC 15 76 LOS4601-2

24 1.25 30 82 LOR4601-2

24 2 48 82 LOK4601-2R

24 - 25.7 3 - 30 1.8 49 82 LOK4240-2RLD

48 1 48 82 LOK4801-2R

48 - 51.4 3 - 60 0.9 49 81 LOK4740-2RLD

1Linear derating to 85% of Po nom below Vi = 105 VAC, 110 VDC

2LOK types only

3Setting voltage Vo set for battery chargers with R-input left open-circuit.

4For minimum order quantities and lead times contact Power-One.

5Efficiency at Vi rated and Io nom

Models in yellow (or shaded) are not recommended for new designs.

BCD20035-G Rev AA, 25-Feb-09 Page 3 of 12 www.power-one.com

LOS, LOR, LOK4000 Series Data Sheet

DIN-Rail Mountable AC-DC (DC-DC) Converters

Fig. 1

Block diagram LOK4301, LOK4601 and 4801 (rectifier

versions), all LOR and all LOS.

Functional Description

The Convert Simply 15, 30, and 50 watt front-end modules are

flyback converters with a fixed frequency of 100 kHz (LOK) or

130 kHz (LOR, LOS). The battery charger modules and the

Fig. 2

Block diagram LOK4140, LOK4240 and LOK4740 (battery

charger versions) and LOK4001- 2RLD.

LOK4001-2RLD have a rectangular V/I output characteristic.

The rectifier modules have overload protection working in a

hiccup mode.

Electrical Input Data

General Condition: TA = 25 °C unless otherwise specified

Table 2: Input data

Characteristics LOS LOR LOK Unit

Vi rated Rated input voltage range 100 - 240 100 - 240 100 - 240 VAC

Vi nom Nominal input voltage 230 230 230

ViOperating input voltage range 85 - 264 85 - 264 85 - 264

90 - 250 90 - 250 90 - 250 VDC

fiNominal line frequency 50 - 60 50 - 60 50 - 60 Hz

IiInput current at 115/230 VAC 1 0.3/0.15 0.52/0.26 0.8/0.4 A

li nl Input current at 230 VAC and no load 0.035

linr max Peak inrush current at Vi = 230 V 2 18 18 19

1At Io nom.

2 Inrush current limitation by a 16 Ω NTC resistor.

switching device

and control circuit

Line filter and rectifier

LVo+

Vo–

03094

Vo+

Vo–

NTC

opt. F

switching device

and control circuit

Line filter and rectifier

LVo+

Vo–

03095

Vo–

NTC

opt. F

BCD20035-G Rev AA, 25-Feb-09 Page 4 of 12 www.power-one.com

LOS, LOR, LOK4000 Series Data Sheet

DIN-Rail Mountable AC-DC (DC-DC) Converters

Electrical Output Data

General Conditions: TA = 25 °C unless otherwise specified. R input not connected.

Table 3a: Output data

Output LOK4001-2RLD LOS/LOR/LOK LOS/LOR/LOK LOK4801-2R

4301-2(R) 4601-2(R)

Characteristics Conditions min typ max min typ max min typ max min typ max Unit

VoOutput voltageVo nom Vi nom, 0.5 Io nom 5.1 12 24 48 V

Vo setting tolerance R-input open-circuit ±1.5 ±1.5 ±1.5 ±1.5 %

Vo adj Adjustable voltage range Units with feature R 4.5 - 5.5 10.8 - 13.2 21.6 - 26.4 43.2 - 52.8 V

Io nom Nominal output current Vi min - Vi max LOS - 1.25 0.65 - A

LOR - 2.5 1.25 -

LOK 5.2 4.0 2.0 1.0

voOutput voltage noise Vi nom, Io nom, 50 100 150 100 150 200 mVpp

(BW = 20 MHz) IEC 61200

Static line/load regulation Vi min - Vi max, ±1 ±1 ±1 ±1

Io = (0.1 - 1) Io nom %

Vo I Dynamic load regulation Vi nom, (0.1 × 0.9) Io nom ±5 ±2 ±1.5 ±1

trTransient recovery time Io = (0.1 × 0.9) Io nom 44 44

thHold-up time 115/230 VAC 14/90 14/90 14/90 14/90

αUo Temper. coefficient of VoVi nom , Io nom ±0.05 ±0.05 ±0.05 ±0.05 %/K

fsSwitching frequency 100 10011001100 kHz

1 LOR and LOS have 130 kHz.

Table 3b: Output data (battery charger models)

Output LOK4140-2RLD LOK4240-2RLD LOK4740-2RLD

Characteristics Conditions min typ max min typ max min typ max Unit

VoOutput voltage Vi nom, 0.5 Io nom 12.84125.68151.361V

R-input open-circuit

Vo adj Adjustable voltage range 12.0 - 15.0 24.0 - 30.0 48.0 - 60.0

Io nom Nominal output current Vi min - Vi max 3.6 1.8 0.9 A

voOutput voltage noise Vi nom, Io nom 100 150 100 150 200 mVpp

(BW = 20 MHz) IEC 61204

Static line/load regulation Vi min - Vi max ±21±11±11

Io = (0.1 - 1) Io nom

Vo I Dynamic load regulation VI nom, (0.1 × 0.9) Io nom ±21±1.5 1±11

trTransient recovery time Io = (0.1 × 0.9) Io nom 444

thHold-up time 115/230 VAC 14/90 14/90 14/90

αUo Temper. coefficient of VoVi nom, Io nom ±0.05 1±0.051±0.051%/K

fsSwitching frequency 100 100 100 kHz

1 R input left open-circuit.

BCD20035-G Rev AA, 25-Feb-09 Page 5 of 12 www.power-one.com

LOS, LOR, LOK4000 Series Data Sheet

DIN-Rail Mountable AC-DC (DC-DC) Converters

Thermal Considerations

If an AC-DC converter is located in free, quasi-stationary air

(convection cooling) at the indicated maximum ambient

temperature TA max (see table: Temperature specifications) and

is operated at its nominal input voltage and output power, the

temperature measured at the Measuring point of case

temperature TC (see Mechanical Data) will approach the

indicated value TC max after the warm-up phase. However, the

relationship between TA and TC depends heavily on the

conditions of operation and integration into a system. The

thermal conditions are influenced by input voltage, output

current, airflow, temperature of surrounding components and

surfaces. TA max is therefore, contrary to TC max, an indicative

value only.

The relation between the maximum allowed output power

Po allowed and the temperature TA of the surrounding air is given

in the figure below. The rates apply if the AC-DC converter is

located in free, quasi-stationary air (convection cooling).

Note: Sufficient forced cooling allows TA to be higher than the

value given in the table if TC max according to the table is not

exceeded.

Caution: The installer must ensure that under all operating

conditions TC remains within the limits that are stated in the table

Temperature specifications.

Fig. 3

Maximum allowed output power versus input voltage at

TA = 50 °C for LOK models operated in vertical position

50 75 150125100 175 200 300

0.5

1.0

Po allowed/Po nom

0 Vi

VAC

0.85

05154a

275

225 250

Fig. 4

Maximum allowed output power versus ambient temperature

at Vi >105 VAC for LOK models, operated in vertical position

–10 0 302010 40 50 70

0.5

1.0

Po allowed/Po nom

0TA

°C

0.45

05155a

Output Power at Low Input Voltage

The output power of LOK models must be derated at low input

voltage, see figure below.

Output Protection

Battery charger versions LOK4140-, 4240-, LOK4740-2RLD,

and the LOK4001-2RLD have a rectangular current limitation

characteristic, which limits the output current to within 100 and

150% of Io nom. The other models are protected against

overload by a current limiting circuit, which shuts down the

converter in overload condition. It automatically restarts after

removal of the overload condition (hiccup mode).

All models are short-circuit and no-load proof.

Outputs Connected in Series

Two or more converters supplying the same or different output

voltages may be connected in series. The value of the

maximum output current to be taken is defined by that unit

providing the lowest current limiting value. It should be assured

that the outputs do not feed backwards into each other caused

by their different rise/fall times at switch-on/off cycles by adding

reverse polarity diodes across each output.

Parallel Operation

Only possible with battery charger versions.

The outputs of several battery charger models with equal

output voltage (e.g. several LOK4240-2RLD) may be

connected in parallel.

BCD20035-G Rev AA, 25-Feb-09 Page 6 of 12 www.power-one.com

LOS, LOR, LOK4000 Series Data Sheet

DIN-Rail Mountable AC-DC (DC-DC) Converters

2.10

2.15

2.20

2.25

2.30

2.35

2.40

2.45

Cell voltage [V]

–20 –10 0 10 20 30 40 50 °C

06123a

= 2.27 V, –3 mV/K V

= 2.27 V, –3.5 mV/K

= 2.23 V, –3 mV/K V

= 2.23 V, –3.5 mV/K

o nom

o max

Table 4: Output Voltage OK signal

Conditions LOK4001-2RLD LOK4140-2RLD LOK4240-2RLD LOK4740-2RLD Unit

min max min max min max min max

Vo t setting 4.4 4.8 10.5 11.5 21 23 42 46 V

VDVo - Vo t min 60 60 60 60

Vo > Vo t max 0.6 0.6 0.6 0.6

I D < 50 mA

Auxiliary Functions

Adjustable Output Voltage (R input)

As a standard feature, the LOK units offer adjustable output

voltage by using the control input R. If the R pin is left open-

circuit, the output voltage is set to Vo nom. (see: Output data)

The R input is referenced to the secondary side of the

converter. Adjustment of the output voltage is possible by

means of either an external resistor or a voltage source.

a) Adjustment by means of an external resistor Rext1:

Depending upon the value of the required output voltage, the

resistor shall be connected

either: Between the R terminal and Vo– to achieve an output

voltage adjustment range of approximately

Vo = 90 - 100 % Vo nom.(LOK4301, 4601 and 4801 types)

Rext1 ≈ 4 kΩ • –––––––––

Vo nom – Vo

or: Between the R terminal and Vo+ to achieve an output

voltage range of approximately Vo = 100 - 110% Vo nom for

rectifier versions and 100 - 125% Vo nom for battery chargers.

(Vo – 2.5 V)

Rext2 ≈ 4 kΩ • –––––––––––––––––––

2.5 V • (Vo/Vo nom – 1)

Vo+

Vo-

Vext

4 kΩV

ref

= 2.5 V

control

circuit

Rext1

Rext2

06029

b) Adjustment by means of an external voltage Vext between

Vo– and R terminal to achieve an output voltage adjustment

range of approx. 90 - 110% Vo nom (LOK 4301, 4601 and

4801 types), 93 - 117% Vo nom for battery chargers.

Vo • 2.5 V

Vext ≈ –––––––––

Vo nom

Attempting to adjust the output below this range will cause

the converter to shut down (hiccup mode).

Note: Applying an external control voltage >3 V may damage the

converter.

Fig. 6

Voltage setting by a temperature sensor, wiring diagram

+–

Battery

Vo+

Vo–

Temperature

sensor

Sensor

cable

Sensor

wires

05174a

green

brown

white

Fuse

–

Fig. 7

Float charge voltage for defined temperature coefficients.

Output Voltage OK (D Output)

The D-output is referenced to Vo– and monitors the output

voltage Vo. If Vo drops below Vo t, the D-output will be disabled

(open-collector circuit). The circuitry works independently of the

input voltage and can therefore be used as battery-low indicator.

Battery Charging/Temperature Sensor

The LOK 4140/4240/4740 are designed to charge lead-acid

batteries. For optimum battery charging and extended life time

of the battery an external temperature sensor may be

connected to the R-input. The sensor should be mounted as

close as possible to one of the poles of the battery.

Depending upon the cell voltage and the temperature coefficient

of the battery, different temperature sensors are available. For

more information please see: Temperature Sensors (Accessory

Products on the Web Site) or contact Power-One.

If no sensor is used, the float charge voltage should be

adjusted with a suitable resistor connected to the R input (see:

Adjustable Output Voltage).

Fig. 5

Output voltage control by means of the R-input

BCD20035-G Rev AA, 25-Feb-09 Page 7 of 12 www.power-one.com

LOS, LOR, LOK4000 Series Data Sheet

DIN-Rail Mountable AC-DC (DC-DC) Converters

Electromagnetic Compatibility (EMC)

Immunity

A metal-oxide VDR together with the input fuse and the input

filter form an effective protection against high input transient

Table 5: Immunity type tests

Phenomenon Standard 1 Level Coupling Value Waveform Source Test Per-

mode 2 applied imped. procedure form.

Electrostatic IEC/EN 2 air discharge 8000 Vp1/50 ns 330 Ω10 positive and B

discharge 61000-4-2 10 negative

discharges

Electromagnetic IEC/EN 2 antenna 3 V/m AM 80% n.a. 80…1000 MHz B

field 61000-4-3 1 kHz 900 MHz

1800 MHz

Electrical fast IEC/EN 3 direct, i/ , +i/–i 2 kVpbursts of 5/50 ns 50 Ω60 s positive B

transients/burst 61000-4-4 2.5/5 kHz over 60 s negative

15 ms; burst transients per

period: 300 ms coupling mode

Surge IEC/EN 3 i/ 2 kVp1.2 / 50 μs 12 Ω5 pos. and 5 neg. A

61000-4-5 2 +i/– i 1 kVp2 Ωsurges per

Conducted IEC / EN 2 box 3 VAC AM 80% 150 Ω0.15 - 80 MHz A

disturbances 61000-4-6 1 kHz

1Related and previous standards are referenced in: Technical Information: Standards

2 i = input, o = output, = PE case.

3A = Normal operation, no deviation from specifications, B = Normal operation, temporary deviation from specs possible.

Emission

Internal input filtering keeps the conducted noise of the

converters within the frequency range of 10 kHz to 30 MHz

below level B according to EN 55011 and EN 55022 standards.

Fig. 8

Typical conducted disturbances (quasi-peak) at the input

measured according to EN 55011/55022 at Vi nom and Io nom.

LOK4601-2R, Vi = 230 VAC.

07113

EN 55022 A

EN 55022 B

0.01

0.05

0.1

0.5

[dBμV]

MHz

0.02

Fig. 9

Radiated disturbances measured according to

EN 55011/55022 at Vi nom and Io nom. LOK4601-2R, Vi = 230

VAC.

voltages, which typically occur in most installations. The LOS,

LOR, and LOK series have been successfully tested to the

following specifications:

EN 55022 B

dBμV/m

LOK4601-2RC1, Vin=230 VAC, Vo=24 V, Io=2 A,

Antenna 10 m, 24-Jan-06, ESVS30, Dubnica

30 50 100 200 500 MHz

JM0016

BCD20035-G Rev AA, 25-Feb-09 Page 8 of 12 www.power-one.com

LOS, LOR, LOK4000 Series Data Sheet

DIN-Rail Mountable AC-DC (DC-DC) Converters

113.6 (4.47")

90 (3.54") 38 (1.5")

S90042

108 (4.25")

Mechanical Data

Dimensions in mm.

Weight:

LOS/LOR: approx. 0.25 kg

LOK: approx. 0.35 kg

Fig. 10

Case

European

Projection

Table 7: Temperature specifications

Characterisitcs Conditions min max Unit

TAAmbient temperature Operational 1 –10 50 °C

TCCase temperature –10 80

TSStorage temperature Non operational –40 85

1See: Thermal Consideration.

Table 8: MTBF Values

MTBF Type Ground benign Ground fixed Ground mobile Unit

TC = 40 °C TC = 40 °C TC = 70 °C TC = 50 °C

According to MIL-HDBK-217F, Notice 2 LOK 1 600 000 400 000 200 000 120 000 h

Immunity to Environmental Conditions

Table 6: Mechanical stress

Test Method Standard T est Conditions St atus

Cab Damp heat IEC/EN 60068-2-78 Temperature: 40 ±2 °C Converter

steady state MIL-STD-810D section 507.2 Relative humidity: 93 +2/-3 % not

Duration: 21 days operating

Ea Shock IEC/EN 60068-2-27 Acceleration amplitude: 15 gn = 147 m/s2Converter

(half-sinusoidal) MIL-STD-810D section 516.3 Bump duration: 11 ms operating

Number of bumps: 18 (3 each direction)

Eb Bump IEC/EN 60068-2-29 Acceleration amplitude: 10 gn = 98 m/s2Converter

(half-sinusoidal) MIL-STD-810D section 516.3 Bump duration: 11 ms operating

Number of bumps: 6000 (1000 each direction)

Fc Vibration IEC/EN 60068-2-6 Acceleration amplitude: 0.15 mm (10 - 60 Hz) Converter

(sinusoidal) MIL-STD-810D section 514.3 2 g n = 20 m/s2 (60 - 150 Hz) operating

Frequency (1 Oct/min): 10 - 150 Hz

Test duration: 3.75 h (1.25 h each axis)

LED

BCD20035-G Rev AA, 25-Feb-09 Page 9 of 12 www.power-one.com

LOS, LOR, LOK4000 Series Data Sheet

DIN-Rail Mountable AC-DC (DC-DC) Converters

Installation Instructions

These converters are components, intended exclusively for

inclusion within other equipment by an industrial assembly

operation or by professional installers. Installation must strictly

follow the national safety regulations in compliance with the

enclosure, mounting, creepage, clearance, casualty, markings

and segregation requirements of the end-use application.

Connection to the system shall be according to Terminal

allocation and Mechanical Data. Check for hazardous voltages

before altering any connection.

Ensure that a converter failure (e.g. by an internal short-circuit)

does not result in a hazardous condition. See also Safety of

operator accessible output circuit.

The phase input (L) is internally fused by a 1.6 A slowblow

type. It is not customer-accessible. This fuse is designed to

protect the unit in case of overcurrent. Option F or external

fuses in the wiring to one or both input lines (L and/or N)

may therefore be necessary to ensure compliance with local

requirements.

A second fuse in the wiring to the terminal N is needed if:

• Local requirements demand an individual fuse in each

source line

• Neutral and earth impedance is high or undefined

• Phase and neutral of the mains are not defined or cannot be

assigned to the corresponding termials (L to phase and

N to neutral).

Note: Do not open the converters, or guarantee will be

invalidated.

Make sure that there is sufficient air flow available for

convection cooling. This should be verified by measuring the

case temperature when the unit is installed and operated in the

end-use application. The maximum specified case

temperature TC max shall not be exceeded.

Note: The converters are designed for vertical mounting on a

DIN-rail. If a converter is operated as well in a horizontal

position, the measuring point TC should be located on the top.

Isolation

The electric strength test is performed in the factory as routine

test in accordance with EN 50116 and IEC/EN 60950 and

should not be repeated in the field. Power-One will not honor

any warranty claims resulting from electric strength field tests.

Caution: Testing by applying AC voltages will result in high and

dangerous leakage currents flowing through the Y-capacitors

(see fig. Block diagram).

Safety and Installation Instructions

Terminal Allocation

The terminal allocation table defines the electrical potentials of

the AC-DC converters. For mechanical positions of the

terminals see Mechanical Data.

Standards and Approvals

All LOK models are approved according to the standards IEC/

EN 60950-1 and UL/CSA 60950-1.

LOR and LOS models are UL 508-listed components and

approved to EN 60950:2000 and UL/CSA 60950-1.

These converters have been evaluated for:

• Class I equipment.

• Building in with vertical mounting on a DIN-rail.

• Double or reinforced insulation or an earthed part between

input and output.

• Basic insulation between input and earth

• Functional insulation between output and earth

• The use in a pollution degree 2 environment

• Connecting the input to a primary circuit with overvoltage

category II.

The converters are subject to manufacturing surveillance in

accordance with the above mentioned standards.

For details see the Declaration of Conformity (last 2 pages).

Protection Degree

IP 20: All models.

Table 9: Terminal allocation

Terminal Electrical LOK/LOR/LOS

1 Input L

2 Protective earth

3 Input N

4 D/Output (positive) D /+

5 Output (positive) +

6 Output (negative) –

7 Output (negative) –

8 R input or open R /n.c.

Table 10: Isolation

Characteristic Input to Input to Output to Unit

protective earth output protective earth

Electric Actual factory test 1 s 2.1 2.1 1 1.4 kVDC

strength AC test voltage equivalent 1.5 1.5 1 1.0 kVAC

test voltage to actual factory test

Insulation resistance at 500 VDC >300 >300 >100 MΩ

1In accordance with EN 50116 and IEC/EN 60950 only subassemblies are pre-tested with 4.3 kVDC or 3.0 kVAC.

BCD20035-G Rev AA, 25-Feb-09 Page 10 of 12 www.power-one.com

LOS, LOR, LOK4000 Series Data Sheet

DIN-Rail Mountable AC-DC (DC-DC) Converters

Under test conditions the leakage current flows through a

measuring instrument (MI) as described in fig. Measuring

instrument for earth leakage current tests, which takes into

account impedance and sensitivity of a person touching

accessible parts. The current value is calculated by dividing

the measured voltage by 500 W. If inputs and/or outputs of

LOS, LOR, or LOK models are connected in parallel, their

individual leakage currents are added.

Leakage Currents in AC-DC Operation

Leakage currents flow due to internal leakage capacitance and

RFI suppression Y-capacitors. The current values are

proportional to the mains voltage and nearly proportional to the

mains frequency and are specified at an input voltage of 264 V

(50 Hz) where phase, neutral and protective earth are correctly

connected as required for class I equipment.

Fig. 11

Measuring instrument (MI) for earth leakage current tests

according to IEC/EN 60950.

Table 11: Leakage currents

Characteristic LOK Unit

Maximum earth Permissible according to IEC/EN 60950 3.5 mA

leakage current Specified value at 264 V, 50 Hz 1.0

Maximum output Permissible according to IEC/EN 60950 0.25

leakage current Specified value at 264 V, 50 Hz 0.035

500 Ω

1500 Ω

10 kΩ220 nF

22 nF

10061

MI for

output

leakage

current

Vo+

Vo-

10053

MI for

earth

leakage

current

Fig. 12

Test setup.

BCD20035-G Rev AA, 25-Feb-09 Page 11 of 12 www.power-one.com

LOS, LOR, LOK4000 Series Data Sheet

DIN-Rail Mountable AC-DC (DC-DC) Converters

Description of Options

Option F: Built-in Second Fuse

A built-in second fuse in the neutral input line enables safe

connection to the mains where phase and neutral are not

defined or cannot be identified as e.g., in the case of plug and

socket connection to the mains via Schuko-plugs, see also

Installation Instruction.

Option K: System Connectors

For installation into systems using preassembled harnesses

the converters are available with connectors fitted with screw

terminals. The system connectors are UL-listed and approved

for currents up to 10 A. Wire cross-sections: Solid wires 1.5

mm2 (AWG14), stranded wires 1 mm2 (AWG16).

NUCLEAR AND MEDICAL APPLICATIONS - Power-One products are not designed, intended for use in, or authorized for use as critical

components in life support systems, equipment used in hazardous environments, or nuclear control systems without the express written

consent of the respective divisional president of Power-One, Inc.

TECHNICAL REVISIONS - The appearance of products, including safety agency certifications pictured on labels, may change depending on

the date manufactured. Specifications are subject to change without notice.

Safety of Operator-Accessible Output Circuit

If the output circuit of an AC-DC converter is operator

accessible, it shall be a SELV circuit according to the IEC/EN

60950 related safety standards.

The following table shows a possible installation configuration,

compliance with which causes the output circuit of an LOS,

LOR, or LOK4000 converter to be a SELV circuit according to

IEC/EN 60950 up to a configured output voltage (sum of

nominal voltages if in series or +/– configuration) of

36 V.

However, it is the sole responsibility of the installer to assure

the compliance with the relevant and applicable safety

regulations.

Table 12 : Safety concept leading to a SELV output circuit

Conditions AC-DC converter Installation Result

Nominal Supply Grade of insulation between Measures to achieve the resulting Safety statuts of the AC-DC

voltage input and output, provided safety statuts of the output circuit converter output circuit

by the AC-DC converter

Mains ≤250 VAC Double or reinforced Earth connection 1 and installation SELV circuit

according to the applicable standards

1 The earth connection of terminal no. 2 has to be provided by the installer according to the relevant safety standards,

e.g. IEC/EN 60950

Fig. 13

Schematic safety concept.

Use fuses and earth connection as per Installation

Instructions and table Safety concept leading to a SELV

output circuit.

AC-DC

con-

verter

Mains SELV

Earth connection

–

10021

Fuse

BCD20035-G Rev AA, 25-Feb-09 Page 12 of 12 www.power-one.com

LOS, LOR, LOK4000 Series Data Sheet

DIN-Rail Mountable AC-DC (DC-DC) Converters

EC Declaration of Conformity

Power-One AG

Ackerstrasse 56, CH-8610 Uster

declare under our sole responsibility that all LOS/LOR/LOK series AC-DC (DC-DC)

converters carrying the CE-mark are in conformity with the provisions of the Low Voltage

Directive (LVD) 73/23/EEC of the European Communities.

Conformity with the directive is presumed by conformity wih the following harmonized

standards:

•EN 61204: 1995 (= IEC 61204: 1993, modified)

Low-voltage power supply devices, DC output - Perfomance characteristics

and safety requirements

•EN 60950: 2000 (= IEC 60950: 1999) for LOS/LOR models

EN 60950-1: 2001 (= IEC 60950-1: 2001) for LOK models

Safety of information technology equipment.

The installation instructions given in the corresponding data sheet describe correct installation

leading to the presumption of conformity of the end product with the LVD. All these regulators

are components intended exclusively for inclusion within other equipment by an industrial

assembly operation or by professional installers. They must not be operated as stand alone

products.

Hence conformity with the Electromagnetic Compatibility Directive 89/336/EEC (EMC

Directive) needs not to be declared. Nevertheless, guidance is provided in most product

application notes on how conformity of the end product with the indicated EMC standards

under the responsibility of the installer can be achieved, from which conformity with the

EMC directive can be presumed.

Uster, 1 Sept. 2005

Power-One AG

Rolf Baldauf Johann Milavec

Vicepresident Engineering Director Projects and IP