PULS CD5.241, CD5.241-S1 User guide

CD–Series

1. GENERAL DESCRIPTION

The Dimension CD5-series offer DIN-rail DC/DC
converters in the 120W output power range in a very
compact housing.

These DC/DC converters are allowed to run from a
battery, can also be used to refresh and stabilize the
24Vdc on the end of a long cable or to isolate
specific loads from the 24V bus voltage.

The CD5.241 includes all the essential basic functions
while the CD5.241-S1 is equipped with quick-connect
spring clamp terminals, a DC-OK-contact which
monitors the output and an input-low-relay-contact.
Both devices have a power reserve of 20% and this
extra power can be used continuously up to +45°C.

CD-Series

Related products

24V->24V

CD5.241

24V->24V

CD5.241-S1

24V->12V

CD5.121

48V->24V

CD5.242

Spring-clamp
terminals,
Input-low,
DC-OK
contacts

3. ORDER NUMBERS

DC/DC
Converter

Accessories ZM1.WALL Wall mount bracket
ZM11.SIDE Side mount bracket

YR2.DIODE Decoupling module

CD5.241

CD5.241-S1

YRM2.DIODE Redundancy module

Standard unit

Unit with signals and
spring-clamp terminals

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

DC/DC CONVERTER

■ Wide Range DC Input (18-32.4Vdc)

■ Isolated 24Vdc Output

■ Efficiency up to 90.3%

■ Width only 32mm

■ 20% Output Power Reserves

■ Full Output Power Between -25°C and +60°C

■ Soft Start Function Included

■ Minimal Inrush Current Surge

■ Reverse Input Polarity Protection

■ DC-OK and Input-low Relay Contact (CD5.241-S1)

■ 3 Year Warranty

2. SHORT-FORM DATA

Output voltage DC 24V
Adjustment range 23 - 28V

5 – 4.3A
6 – 5.1A

UL 60950-1

GL

Marine, pending

Ambient <60°C
Ambient <45°C

(14 to 18Vdc
with derating)

Class I Div 2,

pending

EMC, LVD

Output current

Output power 120W Ambient <60°C
144W Ambient <45°C
Output ripple < 50mVpp 20Hz to 20MHz
Input voltage DC 24V 18 to 32.4Vdc

Input current typ. 5.5A At 24Vdc input
Input Inrush current typ. 1.2A peak
Efficiency typ. 90.3% At 24Vdc input
Losses typ. 12.9W At 24Vdc input
Hold-up time typ. 6ms At 24Vdc input
Temperature range -25°C to +70°C Operational
Derating 3W/°C +60 to +70°C
Dimensions 32x124x102mm WxHxD

4. MARKINGS

18WM

LISTED

IND. CONT. EQ.

UL 508

R

CUS

182790

pending

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

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1/22

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

INDEX PAGE INDEX PAGE

1.

General Description ............................................1

2. Short-form Data ..................................................1

3. Order Numbers....................................................1

4. Markings..............................................................1

5. Input Voltage ......................................................3

6. Soft-start and Input Inrush Current Surge .........4

7. Output .................................................................5

8. Hold-up Time.......................................................6

9. Efficiency and Power Losses................................7

10. Functional Diagram.............................................8

11. Reliability.............................................................8

12. Front Side and User Elements.............................9

13. Terminals and Wiring..........................................9

14. DC-OK Relay Contact (CD5.241-S1) ..................10

15. Input-low Relay Contact (CD5.241-S1) .............10

16. EMC....................................................................11

17. Environment......................................................12

18. Protection Features...........................................12

19. Safety .................................................................13

20. Dielectric Strength ............................................13

21. Approvals...........................................................14

22. Fulfilled Standards............................................ 14

23. Used Substances ............................................... 14

24. Physical Dimensions and Weight..................... 15

25. Installation and Operation Instructions .......... 15

26. Accessory........................................................... 16

27. Application Notes............................................. 17

27.1. Peak Current Capability......................... 17

27.2. Back-feeding Loads................................ 17

27.3. Inductive and Capacitive Loads ............. 17

27.4. Output Circuit Breakers ......................... 18

27.5. Series Operation..................................... 19

27.6. Parallel Use to Increase Output Power . 19

27.7. Daisy Chaining of Outputs..................... 19

27.8. Parallel Use for 1+1 Redundancy........... 20

27.9. Charging of Batteries............................. 20

27.10. Requirements for the Supplying Source 21

27.11. External Input Protection....................... 21

27.12. Use in a Tightly Sealed Enclosure .......... 21

27.13. Mounting Orientations.......................... 22

INTENDED USE

The DC/DC converter shall only be installed and put into operation by qualified personnel.
This DC/DC converter is designed for installation in an enclosure and is intended for the general use, such as in

industrial control, office, communication, and instrumentation equipment. Do not use this device in aircraft, trains
and nuclear equipment, where malfunctioning of the DC/DC converter may cause severe personal injury or threaten
human life.

TERMINOLOGY AND ABREVIATIONS

PE and symbol PE is the abbreviation for Protective Earth and has the same meaning as the symbol .

Earth, Ground This document uses the term “earth” which is the same as the U.S. term “ground”.

T.b.d. To be defined, value or description will follow later.

DC 24V A figure displayed with the AC or DC before the value represents a nominal voltage with

standard tolerances included.
E.g.: DC 12V describes a 12V battery regardless whether it is full (13.7V) or flat (10V)

24Vac A figure with the unit (Vdc) at the end is a momentary figure without any additional

tolerances included.

DISCLAIMER

The information presented in this document is believed to be accurate and reliable and may change without notice.
Some parts of this unit are patent by PULS (US patent No 091662,063, Des. 424,529, …).
No part of this document may be reproduced or utilized in any form without permission in writing from PULS GmbH.

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

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2/22

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

5. INPUT VOLTAGE

Input
Input voltage range

14.0-18.0Vdc Max. 60 seconds or with de-rating see Fig. 5-2

Allowed voltage between input
and earth (ground)

Allowed input ripple voltage

Turn-on voltage typ. 17.5Vdc Steady-state value, see Fig. 5-1
Shut-down voltage typ. 14.0Vdc Steady-state value, see Fig. 5-1

Input current
Start-up delay typ.
Rise time typ. 80ms 0mF, 24V, constant current load 5A, see Fig. 5-3

Turn-on overshoot
Input capacitance typ.

External capacitors on the input voltage bus are allowed without any limitations.

Fig. 5-1 Input voltage range

P

OUT

Shut-down

14.0Vdc

Rated input range

Turn-on

17.5Vdc

18.0Vdc

Fig. 5-3 Turn-on behavior, definitions Fig. 5-4 Input current vs. output load

Intput
Voltage

Output
Voltage

- 5%

Start-up

delay

Rise

Time

nom. DC 24V
nom. 18.0-32.4Vdc Continuous operation

max. 36.0Vdc Absolute maximum continuous input voltage with no

damage to the DC/DC converter.

max. 60Vdc or

42.4Vac

max. 5Vpp 47Hz-40kHz, the momentary input voltage must always be

within the specified limits.

typ. 35Vdc Steady-state value, see Fig. 5-1
typ. 5.5A At 24Vdc input and output 24V, 5A, see Fig. 5-4

650ms

See Fig. 5-3

typ. 150ms 5mF, 24V, constant current load 5A, see Fig. 5-3

32.4Vdc

500mV
3 000µF

V

IN

35.0Vdc

Overshoot

See Fig. 5-3

Fig. 5-2 Allowable output current below 18V

Output Current

6A

5

4

3

2

1

0

14 16 18 20 24Vdc

Input

8A

Current,
typ.

6

4

2

0

1

1.5 2 3

input voltage

)

a

(

)

b

(

(a) Ambient < 45°C
(b) Ambient < 60°C

Input Voltage

Output Current

3.5

2.5

u

p

n

I

n

I

4

:

t

p

4.5

22

c

d

V

8

1

V

4

2

:

t

u

5

d

5.5

c

6A

max.

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

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CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

6. SOFT-START AND INPUT INRUSH CURRENT SURGE

Inrush current limitation

An active inrush limitation circuit (inrush limiting resistor which is bypassed by a relay contact) limits the input inrush
current after turn-on of the input voltage.

The charging current into EMI suppression capacitors is disregarded in the first microseconds after switch-on.

Inrush current

max. 1.6A
typ. 1.2A
Inrush energy

typ. negligible -25°C to +70°C

Fig. 6-1 Input inrush current, typical behavior

Input Current

Input Voltage

Input 24Vdc

-25°C to +70°C

peak

-25°C to +70°C

peak

Input: 24Vdc
Output: 24Vdc, 5A, constant current load
Ambient: 25°C

Upper curve: Input current 2A / DIV
Middle curve: Input voltage 20V / DIV
Lower curve: Output voltage 20V / DIV
Time scale: 100ms / DIV

Output Voltage

Soft-start function:

After the DC/DC converter is turned on, the internal output current rises slowly to its nominal value. This method
charges the output capacitors (internal and external capacitors) slowly and avoids high input currents during turn-on.
High input currents can produce a high voltage drop on the input wiring (especially with long and thin cables) which
reduces the terminal voltage on the DC/DC converter. If the terminal voltage is below the shut-down voltage, the
DC/DC converter will turn-off and will make a new start-up attempt. This effect is avoided with the integrated soft­start function. Please note, that this function increases the rise time of the output voltage by a small amount.

Fig. 6-2 Soft-start behavior

Input: 24Vdc
Output: 24Vdc, 5A, constant current load
Ambient: 25°C
No additional external capacitors

Input Current

Upper curve: Input current 2A / DIV
Lower curve: Output voltage 10V / DIV
Time scale: 20ms / DIV

Output Voltage

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

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A

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

7. OUTPUT

Output voltage
Adjustment range
max. 30V At clockwise end position of potentiometer
Factory setting
Line regulation
Load regulation max. 100mV CD5.241; static value, 0A Æ 5A Æ 0A

Ripple and noise voltage
Output capacitance typ.
Output current nom. 6A At 24V, ambient < 45°C, see Fig. 7-1
nom. 5A

Output power nom. 144W Ambient < 45°C
nom. 120W
Short-circuit current
max. 10A Load impedance 200mOhm, see Fig. 7-1

Fig. 7-1 Output voltage vs. output current,

typ. (24Vdc input voltage)

nom. 24V
min. 23-28V Guaranteed

max.

24.1V
25mV

±0.2%, at full load, cold unit

Input variations between 18 to 32.4Vdc

max. 150mV CD5.241-S1; static value, 0A Æ 5A Æ 0A
max.

50mVpp
2200µF

20Hz to 20MHz, 50Ohm

At 24V, ambient < 60°C, see

Fig. 7-1

nom. 5.1A At 28V, ambient < 45°C, see Fig. 7-1
nom. 4.3A

At 28V, ambient < 60°C, see

Fig. 7-1

Ambient < 60°C

min. 7A Load impedance 200mOhm, see Fig. 7-1

Fig. 7-2 Current limitation vs. input voltage,

typ. (23V constant voltage load)

Output Voltage

28V

24

20

16

12

8

4
0

Adjustment

Range

Output Current

048

1062

12

Output Current

6.6A

6.5

6.4

6.3

6.2

6.1

6.0

5.9

5.8
15 21 27

Input Voltage

33Vdc302418

Peak current capability (up to several ms)

The DC/DC converter can deliver a peak current which is higher than the specified short term current. This helps to
start current demanding loads or to safely operate subsequent circuit breakers.

The extra current is supplied by the output capacitors inside the DC/DC converter. During this event, the capacitors
will be discharged and cause a voltage dip on the output. Detailed curves can be found in chapter 27.1.

Peak current voltage dips
typ. from 24V to 15V

typ. from 24V to 18V At 10A for 50ms, resistive load

At 20A for 2ms, resistive load

typ. from 24V to 11.5V

At 20A for 5ms, resistive load

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

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CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

8. HOLD-UP TIME

The input side of the DC/DC converter is equipped with a bulk capacitor which keeps the output voltage alive for a
certain period of time when the input voltage dips or is removed. The bulk capacitor can be discharged by loading
the DC/DC converter on the output side or through a load which is parallel to the input. There is no protection in the
DC/DC converter which prevents current from flowing back to the input terminals. If prevention is needed, an
external diode should be used.

Input 24Vdc

Hold-up Time typ. 11.8ms Input 24Vdc, output: 24Vdc, 2.5A, see Fig. 8-1
typ. 6ms Input 24Vdc, output: 24Vdc, 5A, see Fig. 8-1

Fig. 8-1 Hold-up time vs. input voltage

Hold-up Time

12ms

10

8

6

4

2

0

Input Voltage

18 20 22 24 28Vdc

(

a

)

)

(

b

)

c

(

)

(

d

(a) 24V, 2.5A, typ.
(b) 24V, 2.5A, min.
(c) 24V, 5A, typ.
(d) 24V, 5A, min.

26

Fig. 8-2 Shut-down test setup Fig. 8-3 Shut-down behavior, definitions

DC/DC

Converter

S1

Input

Output

CD5

+

+

Load

-

-

DC

Source

+

-

Intput
Voltage

Output
Voltage

S1 opens

- 5%

Hold-up Time

Note: At no load, the hold-up time can be up to several seconds. The green DC-ok lamp is also on during this time.

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

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A

A

c

c

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

9. EFFICIENCY AND POWER LOSSES

Input 24Vdc

Efficiency typ. 90.3% 5A, 24V
Power losses typ. 0.7W CD5.241 at no output load

1.1W CD5.241-S1 at no output load
typ. 6.2W 2.5A, 24V
typ. 12.9W 5A, 24V
typ. 16.3W 6A, 24V

Fig. 9-1 Efficiency vs. output current at 24V Fig. 9-2 Losses vs. output current at 24V

Efficiency

91%

90

89

88

87

86

85

Output Current

1

245

3

6

Power Losses

18W

15

12

9

6

3

0

012 456

Fig. 9-3 Efficiency vs. input voltage, 24V, 5A Fig. 9-4 Losses vs. input voltage, 24V, 5A

Efficiency

91%

90.5

90.0

89.5

89.0

88.5

88.0
18 20 22 26 28 32

Input Voltage

24 30

Vd

Power Losses

18W

15

12

9

6

3

0

18 20 24 26 28 32

Output Current

3

Input Voltage

22 30

Vd

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

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CD–Series

10. FUNCTIONAL DIAGRAM

Fig. 10-1 Functional diagram CD5.241

+

Fig. 10-2 Functional diagram CD5.241-S1

Chassis

Ground

-

+

-

Chassis

Ground

Input Fuse
&
Input Filter

Input Fuse
&
Input Filter

Reverse
Polarity
Protection
&
Inrush
Limiter

Over-

Temperature

Protection

Reverse
Polarity
Protection
&
Inrush
Limiter

Over-

Temperature

Protection

Output

Over-

Voltage

Protection

Output

Over-

Voltage

Protection

Power

Converter

Power

Converter

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

Output

Voltage

Output
Voltage
Monitor

Input
Voltage
Monitor

Regulator

Output

Filter

Output

Voltage

Regulator

Output

Filter

DC-ok
Relay

Input
low
Relay

V

OUT

+
+

-

-

DC
ok

V

OUT

+
+

-

-

DC
ok

14

13

12

11

Input
low

11. RELIABILITY

CD5.241 CD5.241-S1

Lifetime expectancy min. 183 000h 180 000h 40°C, 24V, 2.5A
min. 65 000h 60 000h 40°C, 24V, 5A
min. 37 000h 33 000h 40°C, 24V, 6A
min. 185 000h 169 000h 25°C, 24V, 5A
MTBF SN 29500, IEC 61709 1 178 000h 1 048 000h 40°C, 24V, 5A
1 932 000h 1 719 000h 25°C, 24V, 5A
MTBF MIL HDBK 217F 625 000h 602 000h 40°C, 24V, 5A, Ground Benign GB40
838 000h 807 000h 25°C, 24V, 5A, Ground Benign GB25

The Lifetime expectancy shown in the table indicates the operating hours (service life) and is determined by the
lifetime expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours.
Lifetime expectancy is calculated according to the capacitor’s manufacturer specification. The prediction model allows
a calculation of up to 15 years from date of shipment.

MTBF stands for Mean Time Between Failure, which is calculated according to statistical device failures, and indicates
reliability of a device. It is the statistical representation of the likelihood of a unit to fail and does not necessarily
represent the life of a product.

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

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CD–Series

12. FRONT SIDE AND USER ELEMENTS

Fig. 12-1

Front side CD5.241

Fig. 12-2

Front side CD5.241-S1

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

A Output Terminals
Screw terminals (Spring-clamp terminals on the CD5.241-S1)

Dual terminals per pole
+ Positive output

- Negative (return) output

Input Terminals

B
Screw terminals (Spring-clamp terminals on the CD5.241-S1)
+ Positive input

- Negative (return) input
Chassis ground can be used to bond the housing to PE
Ground this terminal to minimize high-frequency emissions.

Signal Terminals

C
Plug Connector for DC-OK and Input-low relay contact

D

Output voltage potentiometer

Open the flap to set the output voltage. Factory set: 24.1V

E DC-OK LED (green) See also chapter 14

CD5.241: On when the voltage on the output terminals is > 21V
CD5.241-S1: Monitors the output voltage, which is produced by
the power supply itself and is on when the voltage is higher
than 90% of the adjusted output voltage.
DC-OK lamp and DC-OK contact functions are synchronized

Input-low LED (yellow) See also chapter 15

F
On when the input voltage is between 4Vdc and 20Vdc..

Input-low LED and Input-low contact functions are synchronized

13. TERMINALS AND WIRING

Type Screw terminals Spring-clamp terminals Plug-connector (screws)
Solid wire 0.5-6mm2 0.5-6mm2 0.2-1.5mm2
Stranded wire 0.5-4mm2 0.5-4mm2 0.2-1.5mm2
American wire gauge 20-10 AWG 20-10 AWG 22-14 AWG
Recommended tightening torque 1Nm, 9lb.in - 0.4Nm / 3.5lb.in
Wire stripping length 7mm / 0.275inch 10mm / 0.4inch 6mm / 0.25inch

Instructions:

a) Use appropriate copper cables that are designed for an operating temperature of:

60°C for ambient up to 45°C and

75°C for ambient up to 60°C minimum.
b) Follow local and national installation codes and regulations!
c) Ensure that all strands of a stranded wire enter the terminal connection!
d) Up to two stranded wires with the same cross section are permitted in one connection point.
e) Ferrules are allowed but not required
f) In order to fulfill GL requirements, unused terminal spaces must be closed.

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

Input and output
CD5.241

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Input and output
CD5.241-S1

Signals
CD5.241-S1

9/22

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

14. DC-OK RELAY CONTACT (CD5.241-S1)

This feature is only available on the model CD5.241-S1 and monitors the output voltage, which is produced by the
DC/DC converter itself. It is independent of a back-fed voltage from a unit which is connected in parallel to the DC/DC
converter output. It is a “Normally Open” contact.

Contact closes As soon as the output voltage reaches the adjusted output voltage.
Contact opens As soon as the output voltage dips more than 10% below the adjusted output voltage.

Contact re-closes As soon as the output voltage exceeds 90% of the adjusted voltage.
Contact ratings max 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A Resistive load
min 1mA at 5Vdc Minimum permissible load
Isolation voltage See dielectric strength table in section 20

Fig. 14-1 DC-ok relay contact behavior

V

=

V

OUT

ADJ

90%

V

ADJ

open

<

1ms

Short dips will be extended to a signal length of 250ms. Dips shorter than 1ms will be ignored.

Note:

The DC-ok feature requires that the output voltage

10%

reaches the nominal (=adjusted) level after turn-on in
order to function according to specification. If this level
cannot be achieved, the overload lamp will be on and

>

1ms

250ms

the DC-ok contact will be open. The overload signal will
only shut off as soon as the adjusted voltage is reached.
This is an important condition to consider particularly, if
the load is a battery, the DC/DC converter is used in

openclosed closed

parallel or the DC/DC converter is used for N+1
redundant systems.

15. INPUT-LOW RELAY CONTACT (CD5.241-S1)

This feature monitors the input voltage of the DC/DC converter. It is a “Normally Closed” contact.

Contact is closed
Contact opens
Contact ratings max 60Vdc 0.3A, 30Vdc 1A, 30Vac 0.5A Resistive load
min 1mA at 5Vdc Minimum permissible load
Isolation voltage See dielectric strength table in section 20

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

When the input voltage falls below 19.5Vdc (typ.)
As soon as the input voltage reaches 20.5 Vdc (typ.)

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CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

16. EMC

The CE mark indicates conformance with EMC directive 89/336/EC, 93/68/EC and 2004/108/EC and the low-voltage
directive (LVD) 73/23/EC, 93/68/EC, 2006/95/EC. A detailed EMC Report is available on request.

EMC Immunity

Electrostatic discharge EN 61000-4-2 Contact discharge

Electromagnetic RF field EN 61000-4-3 80MHz-2.7GHz 10V/m Criterion A

Fast transients (Burst) EN 61000-4-4 Input lines

Surge voltage on input EN 61000-4-5 + Æ -

Surge voltage on output EN 61000-4-5 + Æ -

Conducted disturbance EN 61000-4-6 0,15-80MHz 10V Criterion A

Criterions:

A: DC/DC converter shows normal operation behavior within the defined limits.
C: Temporary loss of function is possible. DC/DC converter might shut-down and restarts by itself. No damage or hazards will occur

to the DC/DC converter.

EMC Emission

Conducted emission CISPR 16-1-2, CISPR 16-2-1 Input / output lines
(Limits for DC power ports)
Radiated emission EN 55011, EN 55022 Class B

This device complies with FCC Part 15 rules.
Operation is subjected to the following two conditions: (1) this device may not cause harmful interference, and (2) this
device must accept any interference received, including interference that may cause undesired operation.

Switching frequency

EN 61000-6-2, EN 61000-6-1

Air discharge

Output lines
Signal lines

+ / - Æ chassis ground

+ / - Æ chassis ground

EN 61000-6-3, EN 61000-6-4 Generic standards

90kHz to 135kHz (Output current > 0.5A) Input voltage and output current

Generic standards
8kV

15kV

4kV
2kV
2kV

1kV
2kV

500V
500V

dependent

Criterion A
Criterion A

Criterion A
Criterion A
Criterion A

Criterion A
Criterion A

Criterion A
Criterion A

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

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11/22

C

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

17. ENVIRONMENT

Operational temperature -25°C to +70°C (-13°F to 158°F) Reduce output power according to Fig. 17-1
Output de-rating 1.6W/°C 45-60°C (113°F to 140°F), see Fig. 17-1
3W/°C 60-70°C (140°F to 158°F), see Fig. 17-1
Storage temperature -40 to +85°C (-40°F to 185°F) During storage and transportation

Humidity 5 to 95% r.H. IEC 60068-2-30

Vibration sinusoidal 2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g

Shock 30g 6ms, 20g 11ms

2 hours / axis

3 bumps / direction, 18 bumps in total

Altitude 0 to 6000m (0 to 20000ft) Reduce output power or ambient

Output de-rating (for altitude) 7.5W/1000m or 5°C/1000m Above 2000m (6500ft), see Fig. 17-2
Over-voltage category III EN 50178, altitudes up to 2000m
II Altitudes from 2000m to 6000m
Degree of pollution 2 EN 50178, non conductive

Fig. 17-1 Output current vs. ambient temp. Fig. 17-2 Output current vs. altitude, 24V

Allowable Output
Current at 24V

6A

5

4

3

2

1

0

-25 0 20 40 70°

c

n

o

n

i

t

u

o

u

s

Ambient Temperature

60

s

h

r

o

t

t

e

r

m

Allowable Output
Current at 24V

6A

5

4

3

2

1

0

The ambient temperature is defined 2cm below the unit.

Do not energize while condensation is present

IEC 60068-2-6

IEC 60068-2-27

temperature above 2000m sea level.

h

s

r

o

t

t

e

m

r

C

B

A

.

A

.

a

.

T

b

m

<

6

C

°

B

.

.

.

T

C

.

.

.

T

0 2000 4000

0

a

b

m

5

<

C

°

0

a

b

m

4

<

C

°

0

Altitude

6000m

18. PROTECTION FEATURES

Output protection Electronically protected against overload, no-load and short-circuits
Output over-voltage protection typ. 31Vdc

max. 32Vdc

Reverse input polarity protection Included Unit does not start when input voltage is reversed
Output over-current protection electronically limited See Fig. 7-1
Degree of protection IP 20 EN/IEC 60529
Penetration protection > 3.5mm E.g. screws, small parts
Over-temperature protection Yes Output shut-down with automatic restart
Input transient protection MOV Metal Oxide Varistor
Internal input fuse T10A H.B.C. Not user replaceable

An audible noise may be heard during a no load, overload or short circuit event.

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

www.pulspower.com Phone [phone] Germany

In case of an internal DC/DC converter fault, a redundant
circuit limits the maximum output voltage. The output
shuts down and automatically attempts to restart.

12/22

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

19. SAFETY

Input / output separation SELV IEC/EN 60950-1
PELV EN 60204-1, EN 50178, IEC 60364-4-41

Double or reinforced insulation,

Max. allowed voltage between any input pin and ground: 60Vdc or 42.4Vac
Class of protection II PE (Protective Earth) connection not required
Isolation resistance > 5MOhm Input to output, 500Vdc
Chassis Ground resistance < 0.1Ohm Between housing and Chassis Ground terminal

Touch current (leakage current) The leakage current which is produced by the DC/DC converter itself depends on

the input voltage ripple and need to be investigated in the final application.

For a smooth DC input voltage, the produced leakage current is less than 100µA.

20. DIELECTRIC STRENGTH

The output voltage is floating and has no ohmic connection to ground.
To fulfill the PELV requirements according to EN60204-1 § 6.4.1, it is recommend that either the + pole, the – pole or

any other part of the output circuit shall be connected to the protective earth system. This helps to avoid situations in
which a load starts unexpectedly or can not be switched off any more when an unnoticed earth faults occur.

CD5.241:

CD5.241-S1:

Fig. 20-1 Dielectric strength

Input

+

-

A

Chassis
ground

Fig. 20-2 Dielectric strength

Input Signals

+

-

A

Chassis
ground

B

Output

C

B

B

C

D

Output

A B C

Type test 60s 1500Vac 1500Vac 500Vac

Factory test 5s 1500Vac 1500Vac 500Vac

Field test 5s 1000Vac 1000Vac 500Vac

+

-

Type tests and factory tests:
Conducted by the manufacturer. Do not repeat test in field!
Rules for field test:
Use appropriate test equipment which applies the voltage
with a slow ramp! Connect all input poles together as well
as all output poles.

A B C D

Type test 60s 1500Vac 1000Vac 500Vac 500Vac

Factory test 5s 1500Vac 1000Vac 500Vac 500Vac

Field test 5s 1000Vac 1000Vac 500Vac 500Vac
Type tests and factory tests:

Conducted by the manufacturer. Do not repeat test in field!
Rules for field test:

+

-

Use appropriate test equipment which applies the voltage
with a slow ramp! Connect all input poles together as well
as all output poles.

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

www.pulspower.com Phone [phone] Germany

13/22

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

21. APPROVALS

IEC 60950-1

IECEE

CB SCHEME

UL 508

UL 60950-1

UL 1604

pending

The unit is suitable for use in Class I Division 2 Groups A, B, C, D locations as well as for Class I

CSA
pending

Marine

pending

Zone 2 Groups IIA, IIB and IIC locations. Substitution of components may impair suitability for
Class I Division 2 environment. Do not disconnect equipment unless power has been switched
off. Wiring must be in accordance with Class I, Division 2 wiring methods of the National
Electrical Code, NFPA 70, and in accordance with other local or national codes.

18WM

LISTED

IND. CONT. EQ.

R

CUS

182790

GL

ABS

CB Scheme,
Information Technology Equipment

LISTED E198865
Industrial Control Equipment

RECOGNIZED E137006 recognized for the use in U.S.A. (UL 60950-1)
and Canada (C22.2 No. 60950)
Information Technology Equipment, Level 3

RECOGNIZED E246877 recognized for use in U.S.A. (UL 1604) and
Canada (C22.2 No. 213-M1987)
Hazardous Location Class I Div 2 T4 Groups A,B,C,D and
Class I Zone 2 Groups IIA, IIB and IIC

CSA approval for Canada
CAN/CSA C22.2 No 107-1; CAN/ CSA 60950-1-03; UL60950-1

GL (Germanischer Lloyd) classified and ABS (American Bureau for
Shipping) PDA for marine and offshore applications.

Environmental category: C, EMC2

22. FULFILLED STANDARDS

EN 61558-2-17 Safety of Power Transformers

EN/IEC 60204-1 Safety of Electrical Equipment of Machines

EN/IEC 61131-2 Programmable Controllers

EN 50178, IEC 62103 Electronic Equipment in Power Installations

23. USED SUBSTANCES

The unit does not release any silicone and is suitable for the use in paint shops.

The unit conforms to the RoHS directive 2002/96/EC

Electrolytic capacitors included in this unit do not use electrolytes such as Quaternary Ammonium Salt Systems.

Plastic housings and other molded plastic materials are free of halogens, wires and cables are not PVC insulated.

The materials used in our production process do not include the following toxic chemicals:
Polychlorinated Biphenyl (PCB), Pentachlorophenol (PCP), Polychlorinated naphthalene (PCN), Polybrominated
Biphenyl (PBB), Polybrominated Biphenyl Oxide (PBO), Polybrominated Diphenyl Ether (PBDE), Polychlorinated
Diphenyl Ether (PCDE), Polybrominated Diphenyl Oxide (PBDO), Cadmium, Asbestos, Mercury, Silica

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

www.pulspower.com Phone [phone] Germany

14/22

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

24. PHYSICAL DIMENSIONS AND WEIGHT

Weight 425g / 0.94lb CD5.241
450g / 0.99lb CD5.241-S1
DIN-Rail Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.

The DIN-rail height must be added to the depth (102mm) to calculate the total required
installation depth.

Electronic files with mechanical data can be downloaded at www.pulspower.com

Fig. 24-1

CD5.241

Front view

Fig. 24-2

CD5.241

Side view

Fig. 24-3
CD5.241-S1
Front view

Fig. 24-4

CD5.241-S1

Side view

25. INSTALLATION AND OPERATION INSTRUCTIONS

Mounting:

Output terminal must be located on top and input terminal on the bottom. For other orientations see chapter 27.13.
An appropriate electrical and fire end-product enclosure should be considered in the end use application.

Cooling:

Convection cooled, no forced cooling required. Do not cover ventilation grill (e.g. cable conduits) by more than 30%!

Installation clearances:

40mm on top, 20mm on the bottom, 5mm on the left and right side are recommended when loaded permanently
with full power. In case the adjacent device is a heat source, 15mm clearance are recommended.

Risk of electrical shock, fire, personal injury or death!

Turn power off before working on the DC/DC converter. Protect against inadvertent re-powering.
Make sure the wiring is correct by following all local and national codes.
Do not open, modify or repair the unit.
Use caution to prevent any foreign objects from entering into the housing.
Do not use in wet locations or in areas where moisture or condensation can be expected.

Supplying source, supplying network:

The inductance and resistance of the supplying network shall be below in Fig. 27-9 in chapter 27.10 to avoid resonant
effects on the input terminals. Please also check chapter 27.10.

Service parts:
The unit does not contain any service parts. The tripping of an internal fuse is caused by an internal fault. If damage
or malfunctioning should occur during operation, immediately turn power off and send unit to the factory for
inspection!

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

www.pulspower.com Phone [phone] Germany

15/22

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

26. ACCESSORY

ZM1.WALL Wall mounting bracket
This bracket is used to mount specific Dimension units onto a flat surface without utilizing a DIN-Rail. The two

aluminum brackets and the black plastic slide of the unit have to be removed, so that the two steel brackets can be
mounted.

(Please note: Picture shows a different unit)

Fig. 26-1 ZM1.WALL Wall Mounting Bracket Fig. 26-2 Assembled Wall Mounting Bracket

ZM11.SIDE Side mounting bracket
This bracket is used to mount specific Dimension units sideways with or without utilizing a DIN-Rail. The two

aluminum brackets and the black plastic slide of the unit have to be removed, so that the steel bracket can be
mounted.

For sideways DIN-rail mounting, the removed aluminum brackets and the black plastic slide need to be reinstalled on
the steel bracket.

(Please note: Pictures show a different unit)

Fig. 26-3 ZM11.SIDE Side Mounting Bracket Fig. 26-4 Side Mounting with DIN-rail brackets

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

www.pulspower.com Phone [phone] Germany

16/22

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

27. APPLICATION NOTES

27.1. PEAK CURRENT CAPABILITY

Solenoids, contactors and pneumatic modules often have a steady state (sealed) coil and a pick-up coil. The inrush
current demand of the pick-up coil is several times higher than the steady state current and usually exceeds the
nominal output current (including the PowerBoost) The same situation applies, when starting a capacitive load.

Branch circuits are often protected with circuit breakers or fuses. In case of a short or an overload in the branch
circuit, the fuse needs a certain amount of over-current to trip or to blow. The peak current capability ensures the
safe operation of subsequent circuit breakers.

Assuming the input voltage is turned on before such an event, the built-in large sized output capacitors inside the
DC/DC converter can deliver extra current. Discharging this capacitor causes a voltage dip on the output. The
following two examples show typical voltage dips:

Fig. 27-1 Peak load 10A for 50ms, typ. Fig. 27-2 Peak load 20A for 5ms, typ.

24V

10A

Output
Voltage

18V

24V

Output
Voltage

20A

11.5V

0A

10ms/DIV

Peak load 10A (resistive) for 50ms

Output voltage dips from 24V to 18V.

Output
Current

0A

Peak load 20A (resistive) for 5ms

Output voltage dips from 24V to 11.5V.

1ms/DIV

Output
Current

27.2. BACK-FEEDING LOADS

Loads such as decelerating motors and inductors can feed voltage back to the DC/DC converter. This feature is also
called return voltage immunity or resistance against Back- E.M.F. (E

This DC/DC converter is resistant and does not show malfunctioning when a load feeds back voltage to the DC/DC
converter. It does not matter, whether the DC/DC converter is on or off.

The maximum allowed feed back voltage is 30Vdc. The absorbing energy can be calculated according to the built-in
large sized output capacitor which is specified in chapter 7.

lectro Magnetic Force).

27.3. INDUCTIVE AND CAPACITIVE LOADS

The unit is designed to supply any kind of load, including unlimited capacitive and inductive loads.

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

www.pulspower.com Phone [phone] Germany

17/22

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

27.4. OUTPUT CIRCUIT BREAKERS

Standard miniature circuit breakers (MCBs or UL1077 circuit breakers) can be used for branch circuit protection.
Ensure that the MCB is also rated for DC voltage. The following tests show which circuit breakers the DC/DC converter
typically trips.

Circuit breakers have huge tolerances in their tripping behavior, therefore, these typical tests can only be used as a
recommendation or for comparing two different DC/DC converters. Furthermore, the loop impedance has a major
influence on whether a breaker trips or not. Two tests were performed, representing typical situations:

Test 1: Short circuit with S1 on the DC/DC converter end of the cable (loop impedance approx. 20mOhm)

Fig. 27-3 Branch protectors, test circuit 1

Circuit

Breaker

I

+

S1

-

+

Load

-

DC/DC

Converter

Input

DC

Test 2: Short circuit with S1 on the load end (additional impedance included; represents longer load wire length).

Fig. 27-4 Branch protectors, test circuit 2

Circuit

DC/DC

Converter

AC

DC

Breaker

I

+

-

R

+

S1 Load

-

*) A list of the circuit breakers under test is available on request.

Example:
Which wire gauge must be used to trip a C-Characteristic circuit breaker with a rating of 3A? The load wire length is
21m.

Answer: A 3A C-Characteristic circuit breaker requires a loop impedance of less than 270mOhm (test results). The wire
length table shows that up to 23m wire with a cross section of 1.5mm

2

1.5mm

shall be used.

180mOhm
270mOhm

Parameters:
Input voltage: 24Vdc, load current: 0A

The following circuit breaker tripped during the test:

A- or Z- Characteristic:: equal or smaller 8A *)
B- Characteristic: no tripping ≥ 6A *)

no breaker available < 6A
C- Characteristic: equal or smaller 3A *)

Parameters:
Input voltage: 24Vdc, load current: 0A

The following circuit breaker tripped during the test:

A- or Z- Characteristic:: ≤ 6A and R= 180mOhm *)
B- Characteristic: no tripping ≥ 6A *)

no breaker available < 6A
C- Characteristic: ≤ 3A and R= 270mOhm *)

What does this resistance mean in wire length?

2

0.5mm

0.7mm2 1.0mm2 1.5mm2 2.5mm2 4.0mm2

5.0m 7.0m 10m 15m 25m 40m

7.5m 10.5m 15m 23m 38m 60m

2

are below 270mOhm. A wire not smaller than

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

www.pulspower.com Phone [phone] Germany

18/22

CD–Series

27.5. SERIES OPERATION

DC/DC converters can be connected in series to increase the output voltage.

Fig. 27-5 Schematic for series operation

Unit A

Input

Unit B

Input

Output

+

-

+

Output

-

+

Load

-

Earth
(see notes)

Instructions for use in series:

a) It is possible to connect as many units in series as needed,

providing the sum of the output does not exceed 150Vdc.

b) Voltages with a potential above 60Vdc are not SELV any more

and can be dangerous. Such voltages must be installed with a

protection against touching.
c) For serial operation use DC/DC converters of the same type.
d) Earthing of the output is required when the sum of the output

voltage is above 60Vdc.
e) Keep an installation clearance of 15mm (left/right) between

two DC/DC converters and avoid installing the DC/DC

converters on top of each other.
Note:

Avoid return voltage (e.g. from a decelerating motor or

battery) which is applied to the output terminals.

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

27.6. PARALLEL USE TO INCREASE OUTPUT POWER

Several DC/DC converter can be paralleled to increase the output power.

Fig. 27-6 Schematic for parallel operation

Unit A

Input

Output

Unit B

Input

Output

Fuse

+

-

Fuse

+

-

*)

+

*)

Load

-

Instructions for parallel use:

a) Use only DC/DC converters from the same series (C-Series) or

consult PULS.
b) Adjust the output voltages of all power supplies to

approximately the same value (±200mV).
c) A fuse (or diode) on the output is only required if more than

three units are connected in parallel.
d) Do not load terminals with more than 25A. Follow wiring

instructions according to chapter 27.7
e) Ensure that the ambient temperature of the power supply does

not exceed 45°C.

27.7. DAISY CHAINING OF OUTPUTS

Daisy chaining (jumping from one power supply output to the next) is allowed as long as the maximum current
through one terminal pin does not exceed 25A. If the current is higher, use a separate distribution terminal block.

Fig. 27-7 Daisy chaining of outputs

max 25A!

Output

+ +

- -

DC/DC

Converter

Output

+ +

- -

DC/DC

Converter

+

Load

-

Fig. 27-8 Using distribution terminals

Output

+ +

- -

DC/DC

Converter

Output

+ +

- -

DC/DC

Converter

+

Load

-

Input

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

Input

www.pulspower.com Phone [phone] Germany

Input

Input

Distribution
Terminals

19/22

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

27.8. PARALLEL USE FOR 1+1 REDUNDANCY

DC/DC converters can be paralleled for 1+1 redundancy to gain a higher system availability. Redundant systems
require a certain amount of extra power to support the load in case one DC/DC converter unit fails. The simplest way
is to put two DC/DC converters in parallel. In case one converter fails, the other one is automatically able to support
the load current without any interruption.

Furthermore, redundant systems can be built by using a DC/DC converter powered from a battery and a power supply
with AC input.

- Use the decoupling module YR2.DIODE in combination with two CD5.241-S1 and use the DC-OK signals of the
DC/DC converter to monitor a faulty unit or input voltage.

- Use the redundancy module YRM2.DIODE in combination with two CD5.241 and use the DC-OK signals of the
redundancy module to monitor a faulty unit or input voltage.

Recommendations for building redundant power systems:
a) Use separate input fuses for each DC/DC converter.
b) Monitor the individual voltage sources of a redundant system. A DC-ok lamp and a DC-ok contact is included in

the redundancy module YRM2.DIODE and the DC/DC converter CD5.241-S1. This feature reports a faulty unit.

c) When possible, connect each DC/DC converter to different power sources.

27.9. CHARGING OF BATTERIES

The power supply can be used for float-charging of lead-acid or maintenance free 24V VRLA batteries.

Instructions for charging batteries:

a) Ensure that the ambient temperature of the power supply does not exceed 50°C.
b) Set the output voltage on a disconnected load, very precisely to the end-of-charge voltage according to the

expected battery temperature.

End-of-charge voltage 27.8V 27.5V 27.15V 26.8V
Battery temperature 10°C 20°C 30°C 40°C

c) Use a 6A or 10A circuit breaker (or blocking diode ) between the power supply and the battery.
d) Ensure that the output current of the power supply is below the allowed charging current of the battery.
e) Use only matched batteries when putting 12V types in series.
f) The return current to the power supply is typ. 26.4mA at 25Vdc when the power supply is switched off (except in

case a blocking diode is utilized).

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

www.pulspower.com Phone [phone] Germany

20/22

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

27.10. REQUIREMENTS FOR THE SUPPLYING SOURCE

In certain circumstances, the input filter of the DC/DC converter can show a resonant effect which is caused by the
supplying network. Especially when additional external input filters are utilized, a superimposed AC voltage can be
generated on the input terminals of the DC/DC converter which might cause a malfunction of the unit. Therefore,
additional input filters are not recommended. To avoid the resonant effects, the minimal resistance of the supplying
network which depends on the inductance of the input network, shall be above the boundary curve in Fig. 27-9.

Fig. 27-9 Requirements for an input filter

Resistance of the
supplying network

1 Ohm

100 mOhm

stability

10 mOhm

1 mOhm

0.1mH 1mH 10mH

Inductance of the supplying network

)

a

(

(

b

)

(a) max.
(b) typ.

27.11. EXTERNAL INPUT PROTECTION

The unit is tested and approved for branch circuits up to 50A. External protection is only required if the supplying
branch has an ampacity greater than this. In some countries local regulations might apply so check local codes and
local requirements.

If an external fuse is necessary or utilized, a minimum value is required to avoid undesired tripping of the fuse.

B-Characteristic C-Characteristic

Ampacity max.

min.

50A 50A
10A 8A

27.12. USE IN A TIGHTLY SEALED ENCLOSURE

When the DC/DC converter is installed in a tightly sealed enclosure, the temperature inside the enclosure will be
higher than the outside. The inside temperature defines the ambient temperature for the DC/DC converter.

Results from such an installation:
DC/DC converter is placed in the middle of the box, no other heat producing equipment inside the box
Enclosure: Rittal Type IP66 Box PK 9516 100, plastic, 110x180x165mm

Load: 24V, 4A; (=80%) load is placed outside the box
Input: 24Vdc
Temperature inside the box: 42.8°C
(in the middle of the right side of the DC/DC converter with a distance of 2cm)
Temperature outside the box: 24.0°C
Temperature rise: 28.8K

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

www.pulspower.com Phone [phone] Germany

21/22

CD–Series

CD5.241, CD5.241-S1

DC/DC Converter; 24V, 5A

27.13. MOUNTING ORIENTATIONS

Mounting orientations other than input terminals on the bottom and output on the top requires a reduction in
continuous output power or a limitation in the maximum allowed ambient temperature. The amount of reduction
influences the lifetime expectancy of the DC/DC converter. Therefore, two different derating curves for continuous
operation can be found below:

Curve A1 Recommended output current.
Curve A2 Max allowed output current (results approx. in half the lifetime expectancy of A1).

Fig. 27-10

Mounting
Orientation A

Standard
Orientation

Fig. 27-11

Mounting
Orientation B
(Upside down)

OUTPUT

DC/DC

Converter

INPUT

INPUT

Converter

DC/DC

OUTPUT

Fig. 27-12

Mounting
Orientation C

(Table-top
mounting)

Fig. 27-13

Mounting
Orientation D

(Horizontal cw)

Converter

INPUT

OUTPUT

DC/DC

Fig. 27-14

Mounting
Orientation E

(Horizontal ccw)

OUTPUT

DC/DC

INPUT

Converter

Output Current

6A

5
4
3
2
1

0

10 20 30

Output Current

6A

5
4
3
2
1

0

10 20 30

Output Current

6A

5
4
3
2
1

0

10 20 30

Output Current

6A

5
4
3
2
1

0

10 20 30

Output Current

6A

5
4
3
2
1

0

10 20 30

Ambient Temperature

40

50

Ambient Temperature

40

A

2

A

1

Ambient Temperature

40

A

2

A

1

Ambient Temperature

40

Ambient Temperature

40

50

50

50

50

A

1

60°C

A

2

A

1

60°C

60°C

60°C

A

2

A

1

60°C

Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.

www.pulspower.com Phone [phone] Germany

22/22