LRP2340-5F2_技术文档

LR Series

240 – 300 Watt AC-DC and DC-DC Converters

The LR Series of AC-DC converters represents versatile power

supplies ideally suitable for use in advanced electronic systems.

Features include full power factor correction, good hold-up time,

high eﬃciency and reliability, low output noise, and excellent

dynamic response to load/line changes.

The converter inputs are protected against surges and transients.

An input over- and undervoltage lockout circuitry disables the

outputs if the input voltage is outside of the speciﬁed range. Input

inrush current limitation is included to prevent circuit breakers

and fuses from tripping at switch-on.

The outputs are open- and short-circuit proof.

Full input-to-output, input-to-case, output-to-case, and output to

output isolation is provided. Particularly the outputs exhibit an

extended insulation to the case.

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Features

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•

Class I equipment

Universal AC input voltage range with PFC and DC input

Inrush current limitation

2 isolated, adjustable outputs

No load, overload, and short-circuit proof

Rectangular current limiting characteristic with ﬂexible

load distribution

•

Inhibit function

Parallel operation with active current sharing

Interruption time 20 ms

Immunity according to EN 61000-4-2, -3, -4, -5, -6, -8

RoHS-compliant

Fire & smoke according to EN 45545

All PCB boards protected by lacquer

Very high reliability

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5 year warranty

AREMA compliant

Safety-approved to the latest edition of IEC/EN 62368-1

and UL/CSA 62368-1

1

for AC input only

Table of Contents

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

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

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

Electrical Input Data .........................................................................4

Electrical Output Data.......................................................................5

Auxiliary Functions ...........................................................................9

Electromagnetic Compatibility (EMC).............................................12

Immunity to Environmental Conditions...........................................14

Mechanical Data.............................................................................16

Safety and Installation Instructions.................................................19

Description of Options....................................................................20

Accessories....................................................................................21

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BCD.00580 Rev AE, 27-Jun-2019

LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Description

All PCB boards are coated with a protective lacquer.

The case design allows for operation at nominal load up to 71 °C with natural cooling. If forced cooling is provided, the ambient

temperature may exceed 71 °C, but the case temperature must remain below 95 °C.

A temperature sensor generates an inhibit signal, which disables the outputs when the case temperature T_Cexceeds the limit. The

outputs are automatically re-enabled when the temperature drops below the limit.

LED indicators display the status of the converter and allow for visual monitoring of the system at any time.

The converters can either be plugged into a 19” rack system according to IEC 60297-3, or be chassis mounted. Two heat sinks of

diﬀerent size and cooling plates for chassis mounting (option B, B1) are available.

Model Selection

Table 1: Model selection

Output 1

Output 2

Power

Operating Input Voltage

Eﬃciency

Model

Options

1

2

η₁₁₀

min [%] typ [%] min [%] typ [%]

η₂₃₀

V_{o nom}

I_{o nom}

V_{o nom}

I_{o nom}

P_{o nom}

V_{i cont}

[V]

[A]

[V]

[A]

[W]

12

15

10

12.5

8

12

15

10

12.5

8

240

300

240

300

90

91

90

92

LR2320-9

LRP2320-9

LR2540-9

LRP2540-9

90 – 264 VAC

F0, F2,

B, B1

125 – 300 VDC

10

1

Eﬃciency at T_A= 25 °C, V_i= 110 VAC, I_{o nom}, V_{o nom}

Eﬃciency at T_A= 25 °C, V_i= 230 VAC, I_{o nom}, V_{o nom}

2

Part Number Description

LR 2 3 20 -9 B1

Operating input voltage V_{i cont}(continuously):

90 – 264 VAC, 125 – 300 VDC ........................ LR, LRP

Number of outputs................................................................2

Nominal voltage of main output V_{o1 nom}

12 V .............................................................................3

15 V .............................................................................5

Other voltages¹......................................................1 - 9

2

Nominal voltage of tracking output V_o2

12 V.............................................................................20

15 V.............................................................................40

Other speciﬁcations or additional features¹....... 11 – 99

Operational temperature range: T_A:

T_A= –40 to 71 °C, T_C≤ 95 °C ......................................-9

Other¹...............................................................-0, -5, -6

Auxiliary functions and options:

Fuse options......................................................... F0, F2

Cooling plate standard case...................................B, B1

1

Customer-speciﬁc models. No safety-relevant changes compared to the respective basic model, e.g. diﬀerent mechanical details, special

markings, mounted front plates, reduced output voltage, etc.

The nominal voltages of both outputs are always equal.

2

Note: The sequence of options must follow the order above.

Example: LR2320-9B1: AC-DC converter, operating input voltage range 90 to 264 VAC, 2 isolated outputs, each providing 12 V,

10 A, cooling plate B1, RoHS-compliant for all six substances.

Product Marking

Basic type designation: applicable approval marks, CE mark, warnings, pin designation, patents and company logo, identiﬁcation of LEDs.

Speciﬁc type designation: input voltage range, nominal output voltages and currents, degree of protection, batch no., serial no., and

data code including production site, modiﬁcation status, and date of production.

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Functional Description

The input voltage is fed via an eﬃcient ﬁlter and a bridge rectiﬁer to the PFC-corrected step-up converter, which generates the

intermediate voltage across the bulk capacitor C_b. The inrush current is limited by the resistor R_inr, which is shorted by V_inr, after

the bulk capacitor was charged.

The bulk capacitor sources a half bridge DC-DC converter and provides the power during the speciﬁed hold-up time.

The main transformer exhibits two secondary windings for the two outputs. The resultant voltages are rectiﬁed by synchronous

rectiﬁers in order to provide the best eﬃciency. Their ripple voltages are smoothed by a dual choke and output ﬁlters. The control

logic senses the main output voltage V_o1and generates the gate signals for the DC-DC converter, which are transferred by isolated

drivers to the primary side.

The second output is tracking the main output voltage, but has its own current limiting circuit. If the main output voltage drops due

to over current, the second output voltage will drop as well and vice versa. Primary current sensing limits the sum of both output

currents, such allowing for loading the main output up to 140% of I_{o1 nom}

.

The output voltages can be adjusted by external means. Parallel operation of several converters is possible by

connecting the T-pins together, in order to provide active current sharing. Both outputs can be connected in parallel or

in series. They exhibit a rectangular current limitation characteristic. Switchable preloads ensure good regulation even with no

load at one output.

A control output (D) and two LEDs signal correct operation of the converter. In case of an output overvoltage of the main output,

the converter is disabled by a latch.

When the input voltage is too high, the overvoltage lockout disables the DC-DC converter and protects it from damage.

Temperature sensors on the primary and secondary side prevent the converter from excessive warm-up.

A cooling plate for chassis-mounting is available (opt. B, B1).

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ꢃagnetic

feedback

Secondary

control

logic

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2ꢁ

2

C

ꢇ

Fuse

2ꢊ

2ꢐ

N~

D

Synchr.

rect. drive

22 T

C

^bꢅ

ꢄ2 Vo2ꢅ

C

ꢏ

C

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C

ꢇ

ꢄꢎ Vo2ꢆ

Synchr.

rect. drive

V

PL2

V

inr

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C

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L~

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Fuse

Voꢄꢆ

ꢐ

V

PLꢄ

C

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Auꢏiliary

converter

2ꢎ

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2

Fuse not fitted with opt. Fꢁ

Additional fuse only fitted with opt. F2

Fig. 1

Block diagram

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Electrical Input Data

General conditions:

- T_A= 25 °C, unless T_Cis speciﬁed.

- Pin 18 (i) connected to pin 8, pin 16 (R), pin 18 (D), and pin 22 (T) left open-circuit.

Table 2: Input data

Model

LR

LRP

Unit

Characteristics

Conditions

min

typ

max

min

typ

max

V_i

Rated input voltage range

100

90

240

264

300

100

90

240

264

300

VAC ¹

I_o= 0 – I_{o nom}

T_{C min}to T_{C max}

V_{i cont}Operating input voltage range

V_{i DC}Continuous DC input voltage range

V_{i nom}Nominal input voltage¹

125

VDC

VAC

A

50 – 60 Hz

(110) 230

(2.5) 1.2

(110) 230

(3.1) 1.5

I_i

Input current

V_{i nom,}I_{o nom}

P_{i 0}

No-load input power

V_{i min}– V_{i max,}I_o= 0

Converter inhibited

15

W

µF

P_{i inh}Idle input power

1.3

2

1.3

2

C_b

t_hu

t_on

Boost capacitance

Interruption time

Start-up time

360

V_i= 0 AC or DC, I_{o nom}

V_i= 0 → V_{i nom}, I_{o nom}

20

ms

500

V_{i abs}Input voltage limits without damage < 2 s

-400

400

-400

400

V_peak

1

Rated input frequency: 50 – 60 Hz, operating frequency: 47– 63 Hz.

Input Fuse and Protection

A VDR together with the input fuse and a symmetrical input ﬁlter form an eﬀective protection against high input transient voltages.

If option F0 was chosen, the installer has to provide an external circuit breaker or fuse according to table 3. Without option F, a fuse

is incorporated in the phase line (pins 30 + 32). A second fuse in the neutral line may be necessary in certain applications (option F2);

see Options and Installation Instructions.

Table 3: Fuse speciﬁcation (AC input voltage)

Model

Fuse rating (AC input)

Reference

LR2320, LR2540

6.3 A, 250 V, slow, 5 × 20 mm

SCHURTER 0001.2512.PT

LRP2320, LRP2540 6.3 A, 250 V, slow, 5 × 20 mm

Input Under-/Overvoltage Lockout

If the input voltage is below approx. 80 VAC or exceeds V_{i op max}, an internally generated inhibit signal disables the outputs. If V_iis below

V_{i min}, but above the undervoltage lockout level, the output voltage may be below the value speciﬁed in the tables Electrical Output Data.

Inrush Current Limitation

All models exhibit an electronic inrush current limitation to protect connectors and switching devices against damage.

Eﬃciency

95

90

85

Vi=230Vac

Vi=110Vac

80

Vi=90Vac

75

70

0

2

4

6

8

10

12

14

Output current per output [A], Io1=Io2

Fig. 2

Eﬃciency versus V_iand I_o(LRP2320, both outputs connected in series)

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Electrical Output Data

General Conditions:

– T_A= 25 °C, unless T_Cis speciﬁed.

– Pin 18 (i) connected to pin 8, pin 16 (R), pin 20 (D), and pin 22 (T) left open-circuit.

Table 4a: Output data of LR2320 and LRP2320

Model (Nom. output voltage)

Characteristics

LR2320 (2 x 12 V)

Output 1 Output 2

typ

V_{i nom}, 0.5 I_{o nom}11.93 12.0 12.07

LRP2320 (2 x 12 V)

Output 1 Output 2

typ

Unit

Conditions

min

max

min

typ

max

min

max

min

typ

max

V_o

V_{o BR}

I_{o nom}

Output voltage

12.0

11.93 12.0

12.07

12.0

V

A

Output protection

(suppressor diode)

Output 2

-

14.3

15.8

-

14.3

15.8

Output current nom. ¹

10⁷

10

12.5⁷

12.5

V

_{i min}– V

i max

I_o1L,I_o2LOutput current limit¹

10.5

21²

17⁷

10.5

13

21.25⁷

13

T_{C min}– T_{C max}

I_o12L

Output current limit^{1, 2}

-

26²

-

V_{i nom}, I_{o nom}

Output noiseincl.

V_o

60

mV_pp

V

spikes⁶

BW = 20 MHz

3

V_{o adj}

∆V_{o u}

Adjustment by R-input⁴

6.0

13.2¹

±120

6.0

13.2¹

±120

V_{i min}– V

i max

Static line/load regulation

(total deviation of V_o)

(0.1 – 1) I_{o nom}

mV

Voltage

deviation

V_{i nom,}0.5 I_{o2 nom}

V_{o d}

t_{o d}

±200

1

±200

±250

1

±250

5

Dynamic

load

regulation

I_{o1 nom}↔ 0.5 I_{o1 nom}

Recovery

time⁵

3

ms

and after turn on

I_{o nom}

Temperature coeﬃcient

of output voltage

α _{v o}

0.02

-

0.02

-

%/K

T_{C min}– T_{C max}

1

If V_ois increased above V_{o nom}through R-, or T-input, the output currents should be reduced so that P_{o nom}is not exceeded.

2

3

4

5

6

7

Both outputs connected in parallel

See Output voltage regulation

For battery charger application, a deﬁned negative temp. coeﬃcient can be provided by using a temp. sensor (see Accessories)

See Dynamic load regulation

Measured with a ceramic cap of 1 µF across each output.

I_o1can be increased to 140% of I_{o1 nom}if I_o2is reduced accordingly

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Table 4b: Output data of LR2540 and LRP2540. General conditions as per table 4a

Model (Nom. output voltage)

Characteristics

LR2540 (2 x 15 V)

Output 1 Output 2

typ

V_{i nom}, 0.5 I_{o nom}14.91 15.0 15.09

LRP2540 (2 x 12 V)

Output 1 Output 2

typ

Unit

Conditions

min

max

min

typ

max

min

max

min

typ

max

V_o

V_{o BR}

I_{o nom}

Output voltage

15.0

14.91 15.0

15.09

15.0

V

A

Output protection

(suppressor diode)

Output 2

-

17.1

18.9

-

17.1

18.9

Output current nom. ¹

8⁷

8

9.6⁷

10.1

9.6

V

_{i min}– V

i max

I_o1L,I_o2LOutput current limit¹

8.4

13.6⁷

8.4

16.32⁷10.1

T_{C min}– T_{C max}

I_o12L

Output current limit^{1, 2}

Output noiseincl. spikes⁶

Adjustment by R-input⁴

16.8²

-

19.7²

-

V_{i nom}, I_{o nom}

V_o

75

mV_pp

V

BW = 20 MHz

3

V_{o adj}

∆V_{o u}

7.5

17.25¹

±150

7.5

17.25¹

±150

V

_{i min}– V

i max

Static line/load regulation

(total deviation of V_o)

(0.1 – 1) I_{o nom}

mV

Voltage

deviation

V

_{i nom,}0.5 I_{o2 nom}

V_{o d}

t_{o d}

±250

1

±250

±300

1

±300

5

Dynamic

load

regulation

I_{o1 nom}↔ 0.5 I_{o1 nom}

Recovery

time⁵

3

ms

and after turn on

I_{o nom}

Temperature coeﬃcient

of output voltage

α _{v o}

0.02

-

0.02

-

%/K

T_{C min}– T_{C max}

1

If the output voltages are increased above V_{o nom}through R-input control, or option T, the output currents should be reduced accordingly so

that P_{o nom}is not exceeded.

Both outputs connected in parallel

See Output voltage regulation

2

3

4

For battery charger applications, a deﬁned negative temperature coeﬃcient can be provided by using a temperature sensor (see

Accessories)

See Dynamic load regulation

Measured with a ceramic cap of 1 µF across each output.

I_o1can be increased to 140% of I_{o1 nom}if I_o2is reduced accordingly

5

6

7

Thermal Considerations

If a converter is located in free, quasi-stationary air (convection cooling) at the indicated maximum ambient temperature T_{A max}

(see table Temperature speciﬁcations) and is operated within the speciﬁed input voltage range with nominal load, the temperature

measured at the Measuring point of case temperature T_C(see Mechanical Data) will approach the indicated value T_{C max}after the

warm-up phase. However, the relationship between T_Aand T_Cdepends heavily upon the conditions of operation and integration

into a system. The thermal conditions are inﬂuenced by input voltage, output current, airﬂow, and temperature of surrounding

components and surfaces. T_{A max}is therefore, contrary to T_{C max}, an indicative value only.

Caution: The installer must ensure that under all operating conditions T_Cremains within the limits stated in the table Temperature speciﬁcations.

Notes: Suﬃcient forced cooling or enhanced cooling with the help of cooling plates (options B, B1) allows for T_Ahigher than 71 °C (e.g. 85 °C),

as long as T_{C max}is not exceeded.

Thermal Protection

Two temperature sensors generate an internal inhibit signal, which disables the converter in the case of overtemperature. The

outputs automatically recover when the temperature drops below the limit.

Interruption Time

The integrated storage capacitor (C_b) is loaded to the boost voltage and ensures full output voltage with nominal load during the

speciﬁed interruption time of 20 ms.

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Output Protection

The 2^ndoutput is protected by a suppressor diode against overvoltage, which could occur due to a failure of the internal control

circuit. This suppressor diode was not designed to withstand externally applied overvoltages. Overload at any of the outputs will

cause both outputs to shut-down.

Note: V_{o BR}of the suppressor diode is speciﬁed in Electrical Output Data. If this voltage is exceeded, the suppressor diode generates losses

and may become a short circuit.

Note: The output voltage of the ﬁrst output is monitored. If it exceeds typ. 140% of V_{o nom}for 10 ms, the converter is inhibited by a latch. To

reactivate, V_imust be removed or the converter disabled through an inhibit signal to pin 18.

Each output has its own current limiting circuit, providing a rectangular output characteristic and protecting against short circuit.

There is no limitation for the capacitive load, and battery charging is possible as well.

Series and Parallel Connection

Both outputs of the same converter can be series-connected or parallel-connected in order to double the output current or the

output voltage respectively.

Outputs of diﬀerent converters of the same model type may be series-connected.

In parallel connection of several converters, the T-pins should be interconnected so that all converters share the output current

equally.

If both outputs of each converter are connected in series, Vo1– of both converters should be connected together. Interconnect the

T-pins as well; see ﬁg. 3.

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Converter

Voꢆꢃ

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T

22

R

ꢆꢊ

Voꢆꢄ

ꢆꢈ

Voꢆꢄ

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Load

Vo2ꢃ

ꢆ2

Vo2ꢄ

ꢆꢉ

Voꢆꢃ

ꢉ

Converter

ꢅ2

Voꢆꢃ

T

ꢊ

22

R

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Voꢆꢄ

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ꢋ

ꢀaꢁ. ꢂ converters

in parallel connection

ꢄ

ꢃ

T

Power bus

Fig. 3

Parallel connection of double-output models with both outputs connected in series.

T-pins and R-pins are referenced to Vo1–.

Notes:

– Not more than 5 converters should be connected in parallel.

– If several outputs are connected in series, the resulting voltage may exceed the SELV level.

– The R-pins should be left open-circuit. If not, the output voltages must individually be adjusted prior to paralleling within 1 to 2%, or the R-pins

should be interconnected.

– Series connection of second outputs without involving their main outputs should be avoided, as regulation may be poor.

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Output Voltage Regulation

If both outputs are connected in parallel or in series, the converter exhibits a rectangular output characteristic; see ﬁg. 4.

The typ. dynamic load regulation illustrates ﬁg. 5.

Output 1 is under normal conditions regulated to V_{o nom}, irrespective of the output currents.

However, V_o2depends upon the load distribution; see ﬁg. 6. The converters have incorporated switchable preloads and do not

need a minimum load.

Note: If output 2 is not used, connect it in parallel with output 1! This ensures good regulation and eﬃciency.

V_o

V_{o nom}

ꢀꢂꢀꢀꢃa

V_o

V_od

V_o±ꢀꢁ

V_od

V_o±ꢀꢁ

ꢀ.9ꢁ

t_d

t

ꢀ.ꢂ

ꢄ_o/ꢄ_{o nom}

ꢀ

I_o

I_oL

ꢂ.ꢃ

≥ ꢀꢂ µs

ꢂ

t

ꢂꢃꢀꢂ2c

I_o

I_{o nom}

ꢀ

ꢀ.ꢂ

ꢃ.ꢀ

Fig. 4

Fig. 5

Output characteristic V_oversus I_o

(both outputs connected in parallel or in series)

Typical dynamic load regulation of V_o.

In a symmetrical conﬁguration the output 1 is regulated to V_{o1 nom}, regardless of the output currents. If the load on output 2 is too

small (<10% of I_{o nom}), its voltage will rise and may activate the overvoltage protection (Suppressor diode).

V_o2depends upon the load distribution: If each output is loaded with at least 10% of I_{o nom}, the deviation of V_o2remains within ±5%

of V_{o nom}. The following ﬁgures explain the regulation with diﬀerent load distributions. If I_o1= I_o2or the two outputs are connected in

series, the deviation of V_o2remains within ±1% of the value of V_{o nom}

.

Note: If output 2 is not used, we recommend to connect it in parallel to V_o1. This results in improved eﬃciency and stability.

Vo2 ꢅVꢆ

ꢀꢂ.ꢁ

ꢄoꢀ=ꢀ2.ꢁA

ꢄoꢀ=ꢀꢃA

ꢀꢂ

ꢄoꢀ=7.ꢁA

ꢄoꢀ=ꢁA

ꢄoꢀ=2.ꢁA

ꢄo=ꢀA

ꢀ2.ꢁ

ꢀ2

ꢄoꢀ=ꢃ.ꢀA

ꢀꢀ.ꢁ

ꢀꢀ

ꢄo2 ꢅAꢆ

ꢀꢁ

ꢃ

ꢁ

ꢀꢃ

Fig. 6a

Models LR2320:V_o2versus I_o2with various I_o1

Fig. 6b

Models LR2540: V_o2versus I_o2with various I_o1

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Auxiliary Functions

Inhibit for Remote On/Oﬀ

The outputs may be enabled or disabled by means of a logic signal (TTL, CMOS, etc.) applied between the inhibit pin 18 (i) and pin

10 or 8 (Vo1–). In systems with several converters, this feature can be used to control the activation sequence of the converters.

If the inhibit function is not required, connect the inhibit pin 18 with pin 10 or 8 (Vo1–).

The inhibit disables the DC-DC converter immediately, without respecting the hold-up time. The input section of the converter is

not disabled.

Note: If pin 18 is not connected, the outputs are disabled.

Table 5: Inhibit characteristics

Characteristics

Conditions min

typ max Unit

V_o= on

V_o= oﬀ

-10

V_{i min}– V_{i max}

2.4

0.8

V

50

V_inhInhibit voltage

I_inh

t_r

Inhibit current

Rise time

V_inh= 0

-600

µA

ms

40

5

t_d

t_f

Delay time

Fall time

Depending on I_o

t_r

V_o/V_{o nom}

ꢃꢄꢀ9ꢅ

ꢁ

t_{d on}

ꢇ

Voꢀꢂ

I

inh

ꢀ.ꢁ

ꢀ

ꢀꢅ

i

V

inh

t_f

t_on

i

ꢁ

ꢅ

Voꢀꢁ

t

ꢂꢃꢁ9ꢄa

ꢀ

Fig. 7

Fig. 8

Output response as a function of inhibit control

Deﬁnition of V_inhand I_inh.

Output Voltage Adjust

As a standard feature, the converters oﬀer an adjustable output voltage. The control input R (pin 16) accepts either a control

voltage V_extor a resistor R_extto adjust the output voltage. When input R is not connected, the output voltage is set to V_{o nom}

.

ꢆꢇꢀ97

Voꢀꢁ

ꢄ

R_eꢃt2

ꢄ kΩ

V

_ref= 2.ꢅ V

ꢁ

ꢀꢈ

R

ꢁ

ꢂ

Control

logic

V_eꢃt

R_eꢃtꢀ

ꢉ

Voꢀꢂ

Fig. 9

Output voltage adjustment

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

a) Adjustment by means of an external control voltage V_extbetween pin 16 (R) and pin 10 or 8 (Vo1–):

The control voltage range is 0.75 V to 2.85 V and allows for an adjustment in the range of approx. 50 – 110% of V_{o nom}

V_o• 3.5 V

.

V_ext≈ –––––––– - 1

V_{o nom}

Caution: Applying an external control voltage >3 V may damage the converter.

b) Adjustment by means of an external resistor:

Depending on the value of the required output voltage, the resistor shall be connected

either: between pin 16 (R) and pin 10 or 8 (Vo1–) to adjust the output voltage in the range of approx. 50 –100% of V_{o nom}

.

V_o

–––––––––

R_ext1≈ 4 kΩ •

V_{o nom}– V_o

or: between pin 16 (R) and pin 4 or 6 (Vo1+) to adjust the output voltage in the range of 100 – 110% of V_{o nom}

(V_o– 2.5 V)

.

––––––––––––––––––

R_ext2≈ 4 kΩ •

2.5 V • (V_o/V_{o nom}– 1)

Caution: To prevent the converter from damage, the value of R’_extshall never be less than the value for increasing V_o1to 110% !

Notes:

– If the output voltages are increased above V_{o nom}via R-input control or option T, the output currents should be reduced, so that P_{o nom}is not

exceeded.

– The second output of double-output models follows the voltage of the controlled main output.

Output Voltage Monitor

The output voltage monitor generates a logic “low” signal (NPN open-collector output) at the D-output (pin 20),

when V_o1≥ 0.96 V_{o nom}and ≤ 1.04 V_{o nom}(typ. values). Then, a green LED (Out OK) at the frontplate is illuminated. If the output

voltage is adjusted by the R-input, the trigger levels are corrected accordingly.

At low D-output, I_Dshould be ≤ 50 mA. If the D-output is high (open collector), V_Dshould be ≤ 50 V.

Note: Output overvoltage activates a latch;see Output Protection.

ꢄꢅꢀ99a

Voꢀꢁ

ꢉ

R

p

ꢃ

D

ꢆpen

collector

D

2ꢇ

ꢈ

ꢀꢇ Ω

V

D

Voꢀꢂ

Fig. 10

Output voltage monitor

LED Indicators

Two green indicators are visible at the front plate:

- Out OK; see Output Voltage Monitor

- In OK. This signal is activated, when V_iis in range and the converter is not disabled by the inhibit signal.

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Battery Charging /Temperature Sensor

All converters with an R-input are suitable for battery charger application. For optimal battery charging and life expectancy of the

battery an external temperature sensor can be connected to the R-input. The sensor is mounted as close as possible to the battery

and adjusts the output voltage according to the battery temperature.

Depending upon cell voltage and the temperature coeﬃcient of the battery, diﬀerent sensor types are available, see Accessories.

Cell voltage ꢅVꢆ

ꢁꢉꢀꢃ9b

2.ꢄꢂ

ꢃꢄꢃ99d

2.ꢄꢁ

Voꢁ

Voꢀ

Power

supply

Load

ꢂnput

2.ꢃꢂ

R

2.ꢃꢁ

2.2ꢂ

2.2ꢁ

2.ꢀꢂ

2.ꢀꢁ

ꢀ

ꢁ

V_{o safe}

Battery

Temperature sensor

ꢇ2ꢁ

ꢇꢀꢁ

ꢁ

ꢀꢁ

2ꢁ

ꢃꢁ

ꢄꢁ

ꢂꢁ ꢈC

V_C= 2.27 V, ꢇꢃ mV/ꢊ

_C= 2.2ꢃ V, ꢇꢃ mV/ꢊ

V_C= 2.27 V, ꢇꢃ.ꢂ mV/ꢊ

V_C= 2.2ꢃ V, ꢇꢃ.ꢂ mV/ꢊ

V

Fig. 11

Fig. 12

Connection of a temperature sensor

Trickle charge voltage versus temperature for deﬁned

temperature coeﬃcient. V_{o nom}is the output voltage with

open R-input.

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Electromagnetic Compatibility (EMC)

The LR Series has been successfully tested to the following speciﬁcations:

Electromagnetic Immunity

Table 6: Electromagnetic immunity (type tests). Corresponds or Exceeds EN50121-3-2:2016 and AREMA

Phenomenon

Standard Level Coupling mode ¹Value

applied

Waveform

Source

imped.

Test procedure

In

Perf.

oper. crit.²

Electrostatic

discharge (to case) 61000-4-2

IEC/EN

contact discharge ±6000 V_p

10 pos. & 10 neg.

discharges

330 Ω

150 pF

4

x

1/50 ns

yes

A

air discharge

antenna

±8000 V_p

20 V/m

5 V/m

Electromagnetic

ﬁeld

IEC/EN

61000-4-3

AM 80% / 1 kHz

N/A

80 – 800 MHz

800 – 1000 MHz

1400 – 2000 MHz

2000 – 2700 MHz

5100 – 6000 MHz

yes

A

antenna

AM 80% / 1 kHz

N/A

3 V/m

Electrical fast

transients / burst

IEC/EN

61000-4-4

3

4

capacitive, o/c

±2000 V_p

60 s positive

60 s negative

transients per

coupling mode

burstsof 5/50ns;

2.5 / 5 kHz over 15 ms;

burst period: 300 ms

50 Ω

±i/c, +i/–i

direct

±4000 V_p

Surges

IEC/EN

61000-4-5

5 pos. & 5 neg.

surges per

coupling mode

i/c

±2000 V_p

±1000 V_p

12Ω / 9µF

2Ω /18 µF

A

B

A

3

i/c, +i/–i

+i/–i

1.2 / 50 µs

yes

Conducted

disturbances

IEC/EN

61000-4-6

10 VAC

(140 dBµV)

3

i, o, signal wires

-

AM 80% / 1 kHz

0 to 50 Hz

150 Ω

0.15 – 80 MHz

yes

A

Power frequency

magnetic ﬁeld

IEC/EN

61000-4-8

300 A/m

60 s in all 3 axes

1

i = input, o = output, c = case

A = normal operation, no deviation from specs.; B = normal operation, temporary loss of function or deviation from specs possible

2

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Electromagnetic Emissions

All models comply with Class A according to EN 55011/55032 for conducted and radiated emissions.

Legendꢀ ꢀꢀꢀꢀꢀꢀ Peak ꢀꢀꢀꢀꢀꢀ Average

Detectorꢀ

+ - ꢁP

x - AV

Legendꢀ ꢀꢀꢀꢀꢀꢀ Peak ꢀꢀꢀꢀꢀꢀ Average

Detectorꢀ

+

- ꢁP

x - AV

Fig. 15a

Fig. 15b

Typ. conducted emissions (peak/quasipeak and average) at

the input according to EN 55011/32, measured at V_i= 230 V

and I_{o nom}(LR2320-9).

Typ. conducted emissions (peak/quasipeak and average) at

the input according to EN 55011/32, measured at V_i= 230 V

and I_{o nom}(LRP2320-9).

60

50

ꢀP LIMIT EN 50121-4

ꢀP LIMIT EN ꢁ1000-ꢁ-4

40

ꢁ 30 dB (uV/m)

ꢂ 30 dB (uV/m)

30

20

10

0

20

10

0

Fig. 16a

Fig. 16b

Typ. radiated emissions accord. to EN 55011/32, antenna 10

m distance, measured at V_i= 230 V and I_{o nom}(LR2320-9).

Typ. radiated emissions accord. to EN 55011/32,antenna10

m distance, measured at V_i= 230 V and I_{o nom}(LRP2320-9).

Table 7: Electromagnetic Emission Tests

Phenomenon

Standard

Test procedure

_{i nom}, I_{o nom}

In operation

Result Class

Harmonic currents

IEC/EN 61000-3-2

V

yes

A

Voltage ﬂuctuation and ﬂicker IEC/EN 61000-3-3

V

Pass

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Immunity to Environmental Conditions

Table 8: Mechanical and climatic stress

Test method

Standard

Test Conditions

Temperature:

Status

Cab Damp heat

steady state

IEC/EN 60068-2-78

MIL-STD-810D section 507.2

40^±2°C

Converter

not operating

Relative humidity:

Duration:

93^+2/-3

%

56 days

55°C and 25°C

2

Db

Cyclic damp heat

EN 50155:2017, clause 13.4.7

IEC/EN 60068-2-30

Temperature:

Converter

not operating

test

Cycles (respiration eﬀect)

Duration:

2x 24 h

70°C

Be

Ad

Ka

Dry heat test

steady state

EN 50155:2017, clause 13.4.5

IEC/EN 60068-2-2

Temperature:

Converter

operating

Duration:

6 h

Low temperature

start-up test

EN 50155:2017, clause 13.4.4

IEC/EN 60068-2-1

Temperature, duration:

Performance test:

-40 °C, 2 h

+25 °C

35 ^±2°C

48 h

Converter

not operating

Salt mist test

EN 50155:2017, clause 13.4.10 Temperature:

IEC/EN 60068-2-11

class ST2

Converter

not operating

sodium chloride

(NaCl) solution

Duration:

Fh

Fc

-

Random vibration

broad band (digital

control) & guidance

IEC/EN 60068-2-64

Acceleration spectral density: 0.05 g_n²/Hz

Frequency band:

8 – 500 Hz

Converter

operating

Acceleration magnitude:

Test duration:

4.9 g_n

rms

1.5 h (0.5 h in each axis)

0.35 mm (10 – 60 Hz)

5 g_n= 49 m/s²(60 - 2000 Hz)

10 – 2000 Hz

Vibration

(sinusoidal)

IEC/EN 60068-2-6

MIL-STD-810D section 514.3

Acceleration amplitude:

Converter

operating

Frequency (1 Oct/min):

Test duration:

7.5 h (2.5 h in each axis)

Vibration

AREMA Part. 11.5.1

class B, C, D, E, I, J

Displacement amplitude:

0.3” (5 – 10 Hz)

0.1” (5 – 20 Hz)

Converter

operating

Acceleration amplitude:

Frequency (1 Oct/min):

Test duration:

2 g_n= 19.6 m/s²(10 - 200 Hz)

5 – 200 Hz

12 h (4 h in each axis)

50 g_n= 490 m/s²

11 ms

Ea

Shock

IEC/EN 60068-2-27

Acceleration amplitude:

Bump duration:

Converter

operating

MIL-STD-810D section 516.3

(half-sinusoidal)

Number of bumps:

Acceleration amplitude:

Bump duration:

18 (3 in each direction)

5.1 g_n

-

Shock

EN 50155:2017 clause 13.4.11,

EN 61373 sect. 10,

Converter

operating

30 ms

class B, body mounted ¹

Number of bumps:

Acceleration amplitude:

Bump duration:

18 (3 in each direction)

10 g_n= 98 m/s²

11 ms

Mechanical shock

AREMA Part. 11.5.1

class B, C, D, E, I, J

Converter

operating

Number of bumps:

18 (3 in each direction)

2

Simulated long life

testing at increased

random vibration

levels

EN 50155:2017 clause 13.4.11.2, Acceleration spectral density: 0.02 g_n/Hz

EN 61373 sect. 8 and 9,

Frequency band:

Acceleration magnitude:

Test duration:

5 – 150 Hz

Converter

operating

class B, body mounted ¹

0.8 g_{n rms}

15 h (5 h in each axis)

1

Body mounted = chassis of a railway coach

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Temperatures

Table 9: Temperature speciﬁcations, valid for an air pressure of 800 – 1200 hPa (800 – 1200 mbar)

Model

-9

Unit

Characteristics

Conditions

min

- 40

- 55

typ

max

71 ¹

95 ^1,2

85

T_A

T_C

T_S

Ambient temperature

Converter operating

Case temperature

° C

Storage temperature

Not operating

1

See Thermal Considerations.

2

Overtemperature lockout at T_C>95 °C. (An NTC resistor on primary and secondary heatsink).

Reliability

Table 10: MTBF and device hours

Ratings at speciﬁed

Model

MTBF

case temperature between failures

Accord. to IEC 62380

LR2320-9

TBD

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Mechanical Data

Dimensions in mm. The converters are designed to be inserted into a 19” rack, 160 mm long, according to IEC 60297-3.

7 Tꢉ

ꢂꢇ.ꢂ

ꢆ Tꢉ

ꢂ.27

ꢁꢀ7ꢀ.ꢇ to ꢀ7ꢀ.9ꢃ

ꢆꢇ

ꢌꢈ

ꢐꢌꢇ92

ꢊut ꢊꢋ

ꢏn ꢊꢋ

ꢌeasuring point of

case temperature T_C

d

ꢅ

ꢀꢆ2

ꢅ

27.ꢂꢅ

ꢄꢇ

Front plate

Back plate

ꢌain face

ꢀꢄꢅ.ꢆ

ꢆ ꢍ 9ꢇꢎ

2.ꢅ

Screw holes of the

frontplate

ꢉuropean

Projection

Fig. 17

Aluminum case of LR models with heat sink; black ﬁnish (EP powder coated);

weight approx. 1.5 kg

Notes:

– d ≥ 15 mm, recommended minimum distance to next part in order to ensure proper air circulation at full output power.

– free air location: the converter should be mounted with ﬁns in a vertical position to achieve maximum airﬂow through the heat sink.

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

7 Tꢀ

ꢆꢉ.ꢆ

9 Tꢀ

ꢆ.27

ꢁꢂ9

ꢃ.ꢂ

ꢋꢊꢉ9ꢆ

ꢎut ꢎꢏ

ꢐn ꢎꢏ

d

ꢊeasuring point of

case temperature T_C

27.ꢆꢄ

ꢅꢁ7ꢁ.ꢉ .... ꢁ7ꢁ.9ꢇ

ꢄꢉ

Front plate

Back plate

ꢊain face

ꢁꢈꢄ.ꢂ

ꢂ ꢌ 9ꢉꢍ

2.ꢄ

Screw holes of the

frontplate

ꢀuropean

Projection

ꢊounting slots for chassis or wall mounting

Fig. 18

Aluminum case of LRP models with heat sink; black ﬁnish (EP powder coated);

weight approx. 1.8 kg

Notes:

– d ≥ 15 mm, recommended minimum distance to next part in order to ensure proper air circulation at full output power.

– free air location: the converter should be mounted with ﬁns in a vertical position to achieve maximum airﬂow through the heat sink.

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

ꢁ

ꢄ7.2

ꢃꢆ.ꢁ

ꢀ.ꢁ

ꢂꢂꢅ27

ꢂꢂ.ꢆ

±ꢅ.2

ꢂ7.ꢃ

ꢂꢃꢃ.ꢄ

ꢂꢀꢆ

ꢃꢅ

Fig. 19

Option B: Aluminum case S with large cooling plate; black ﬁnish (EP powder coated).

Suitable for front mounting.

Total weight approx. 1.5 kg

Note: Long case with option B2, elongated by 60 mm for 220 mm rack depth, is available on request (no LEDs, no test sockets).

7 Tꢊ

ꢂ.27

ꢄ Tꢊ

ꢈꢇ

ꢂꢆ.ꢈ

ꢈ

ꢀꢈꢆ

ꢀꢀ.ꢆ

ꢋꢉꢇ9ꢄ

ꢉ ꢄ

ꢌut ꢌꢍ

ꢎn ꢌꢍ

ꢉeasuring point of

case temperature T_C

ꢈ

ꢄ7.2

ꢀ7.ꢂ

ꢀꢂꢂ.ꢄ

ꢀꢅꢆ

ꢁꢀ7ꢀ.ꢇ ... ꢀ7ꢀ.9ꢃ

Fig. 20

Option B1: Aluminum case S with small cooling plate; black ﬁnish (EP powder coated).

Suitable for mounting with access from the backside.

Total weight approx. 1.4 kg.

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Safety and Installation Instructions

Connector Pin Allocation

The connector pin allocation table deﬁnes the electrical potentials and the physical pin positions on the H15 connector. The

protective earth is connected by a leading pin (no. 24), ensuring that it makes contact with the female connector ﬁrst.

Table 11: Pin allocation

Pin No.

4

Name

Vo1+

Vo1-

Vo2+

Vo2-

R

Function

Positive Output 1

Negative Output 1

Positive Output 2

Negative Output 2

Output voltage adjust

Inhibit

Sꢀꢁꢁꢁ2b

6

8

ꢂꢁ 2ꢅ 22 ꢀꢃ ꢀꢄ ꢀꢁ

ꢂ2 2ꢃ 2ꢄ 2ꢁ ꢀꢅ ꢀ2

ꢅ

10

12

14

16

18

20

22

ꢃ

ꢄ

i

D

Out OK

Fiꢆtures for retention clips

T

Current share

24¹

Protection earth PE and case

Fig. 21

26 + 28

30 + 32

1

N~

L~

Neutral line

Phase line

View of module’s male connector

Leading pin (pre-connecting)

Installation Instructions

The 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 made via the female connector H15; see Accessories. Other installation methods may not meet

the safety requirements.

Pin no. 24 ( ) is connected with the case. For safety reasons it is essential to connect this pin reliably to protective earth.

Notes:

– Pin 18 (inhibit) must be connected to pin 8 / 10 (Vo1–) to enable the converter.

– Do not open the converter, or warranty will be invalidated.

– If the second output is not used, connect it parallel with the main output.

Caution: For operation at DC source voltage above 150 VDC, an external fuse or a circuit breaker at system level must be installed.

Make sure that there is suﬃcient airﬂow available for convection cooling and verify it by measuring the case temperature T_C, when

the converter is installed and operated in the end-use application; see Thermal Considerations.

Ensure that a converter failure (e.g. an internal short-circuit) does not result in a hazardous condition.

Standards and Approvals

The converters are safety-approved to UL/CSA 62368-1 and IEC/EN 62368-1.

The converters correspond to Class I equipment (case connected to ground). They have been evaluated for:

• Building-in

• Basic insulation between input and case based on 250 VA; basic insulation between outputs and case; double or reinforced

insulation between input and outputs

• Functional insulation between outputs

• Overvoltage category II

• Pollution degree 2 environment

• Max. altitude: 2000 m

• The converters fulﬁl the requirements of a ﬁre enclosure.

The output voltage is considered as SELV. The converters are subject to manufacturing surveillance in accordance with the

above mentioned safety standards and with ISO 9001:2015, IRIS ISO/TS 22163:2017 certiﬁed quality and business management

system. CB-scheme is available on request.

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Railway Application and Fire Protection

The converters have been designed by observing the railway standards EN 50155 and EN 50121-4. All boards are coated with a

protective lacquer.

The converters comply with EN 45545-1, EN 45545-2 (2016), if installed in a technical compartment or cabinet.

Protection Degree and Cleaning Liquids

In order to avoid possible damage, any penetration of cleaning ﬂuids has to be prevented, since the power supplies are not

hermetically sealed.

The protection degree is IP 40, provided that the female connector is ﬁtted to the converter.

Isolation and Protective Earth

The electric strength test is performed in the factory as routine test according to EN 50514 and IEC/EN 62368-1 and should not

be repeated in the ﬁeld. The company will not honor any warranty claims resulting from incorrectly executed electric strength ﬁeld

tests. The resistance between case and earth pin (<0.1 Ω) is tested as well.

Table 12: Isolation

Characteristics

Input to

Output(s) to

Output 1 to

Output 2

Unit

Case + Output(s) Case and Input

Electric strength test

Factory test 10 s

2.84 ¹

2.0 ¹

4.3

3.0

0.5

0.3

kVDC

kVAC

MΩ

AC test voltage equivalent to factory test

Insulation resistance at 500 VDC

>300

≥ 3.5 ²

>300

≥ 4.5

>300

---

Creepage distances

mm

1

According to EN 50514 and IEC/EN 62368-1, subassemblies connecting input to output are pre-tested with 5.6 kVDC or 4 kVAC.

Input to outputs: 7.0 mm

2

Description of Options

F0, F2 Fuse Options (not for DC input)

The converters exhibit an AC-rated fuse in the input phase line (L, pins 30 and 32). For operation with DC input, choose option F0

(no fuse) and provide an external fuse or circuit breaker in series to L. This is also recommended in EN 50155.

Option F0 means that there is no fuse incorporated.

Option F2 (AC-rated fuses in both input lines) is required for operation with AC in several countries, but especially if the converter

is operated between phases, or if the neutral line cannot be allocated (e.g., for German “Schuko” connectors).

Table 3 shows the type of the fuse.

B, B1 Cooling Plates

Where a cooling surface is available, we recommend the use of a cooling plate instead of the standard heat sink. The mounting

system should ensure that the maximum case temperature T_{C max}is not exceeded. The cooling capacity is calculated by (η see

Model Selection):

(100% – η)

P_Loss

=

–––––––––– • V_o• I_o

η

For the dimensions of the cooling plates; see Mechanical Data.

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LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Accessories

A variety of electrical and mechanical accessories are available including:

– Front panels for 19” DIN-rack: Schroﬀ or Intermas, 12 or 16TE /3U; see ﬁg. 22.

– Mating H15 connectors with screw, solder, faston, or press-ﬁt terminal; see ﬁg. 23.

– Coding clips for connector coding HZZ00202

– Pair of connector retention clips HZZ01209-G; see ﬁg.25

– Connector retention brackets HZZ01216-G (CRB-HKMS)

– Cable hood for H15 connectors:

- HZZ00141-G, screw version

- HZZ00142-G, use with retention brackets HZZ01218-G

- HZZ00143-G, metallic version providing ﬁre protection

– Cage clamp adapter HZZ00144-G; see ﬁg. 26.

– DIN-rail mounting assembly HZZ0615-G (DMB-K/S)

– Wall-mounting plate K02 (HZZ01213-G) for models with option B1

– Additional external input and output ﬁlters

– Diﬀerent battery sensors S-KSMH... for using the converter as a battery charger. Diﬀerent cell characteristics can be selected;

see ﬁg. 30, table 12, and Battery Charging/Temperature Sensors.

For additional accessory product information, see the accessory data sheets listed with each product series or individual

model at our web site.

Fig. 23

Diﬀerent mating connectors

Fig. 22

Fig.24

Diﬀerent front panels

Connector retention clips to fasten the H15 connector to the

rear plate; see ﬁg.24. HZZ01209-G consists of 2 clips.

2ꢀ to ꢁꢀ Ncm

Fig. 25

Fig. 26

Connector retention brackets HZZ01216-G (CRB-HKMS)

Cage clamp adapter HZZ00144-G

tech.support@psbel.com

belfuse.com/power-solutions

BCD.00580 Rev AE, 27-Jun-2019

Page 21 of 22

LR Series

240 – 300 Watt AC-DC and DC-DC Converters

Fig. 27

Fig. 28

Diﬀerent cable hoods

Chassis- or wall-mounting plate HZZ01213-G (Mounting

plate K02)

European

Projection

26 (1.02")

09125a

L

56 (2.2")

adhesive tape

L = 2 m (standard length)

other cable lengths on request

Fig. 29

Fig. 30

Battery temperature sensor

DIN-rail mounting assembly HZZ00615-G (DMB-K/S)

Table 13: Battery temperature sensors

Battery

voltage

nom. [V]

Sensor type

Cell

Cell temp. Cable

voltage coeﬃcient length

[V]

[mV/K]

–3.0

–3.5

–3.0

–3.5

–3.0

–3.5

[m]

2

12

24

48

S-KSMH12-2.27-30-2

S-KSMH12-2.27-35-2

S-KSMH24-2.27-30-2

S-KSMH24-2.27-35-2

S-KSMH24-2.31-35-0

S-KSMH24-2.31-35-2

S-KSMH24-2.35-35-2

S-KSMH48-2.27-30-2

S-KSMH48-2-27-35-2

2.27

2.31

2.35

2.27

2

4.5

2

Note: Other temperature coeﬃcients and cable lengths are available on request.

NUCLEAR AND MEDICAL APPLICATIONS - These products are not designed or intended for use as critical components in life support systems,

equipment used in hazardous environments, or nuclear control systems.

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.

tech.support@psbel.com

belfuse.com/power-solutions

BCD.00580 Rev AE, 27-Jun-2019

Page 22 of 22


型号：	LRP2340-5F2
厂家：	BEL FUSE INC.
描述：	AC-DC Power Factor Correction Module,
文件：	总22页 (文件大小：4268K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

LRP2340-5F2 [BEL]

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