CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

DC/DC CONVERTER











24V input voltage
Isolated 24V output voltage
Efficiency 94.2%
Width only 42mm
20% output power reserves (PowerBoost)
Full power between -25°C and +60°C
Soft-start function
Minimal inrush current surge
Reverse input polarity protection
3 year warranty

PRODUCT DESCRIPTIONSHORT-FORM DATAThe CD10.241 is a DIN rail mountable DC/DC converterof the highly reliable DIMENSION series. It provides afloating, stabilized and galvanically separated
SELV/PELV output voltage.

Output voltage
Adjustment range
Output current

The CD-Series is part of the DIMENSION power supply
family. The most outstanding features of CD10.241 are
the high efficiency, the small size and the wide
operational temperature range.
The CD-Series includes all the essential basic functions.
The devices also offer PowerBoost: Power reserves of
20%, which may even be used continuously attemperatures up to +45°C
High immunity to transients and power surges as well as
low electromagnetic emission makes this DC/DC
converter suitable for nearly every situation.

ORDER NUMBERS
ZM2.WALL
ZM12.SIDE

Input voltage
Input current
Input inrush current
Efficiency
LossesHold-up time
Temperature range
Size (W x H x D)
WeightMAIN APPROVALS
For details and the complete approval list, see chapter 18

DC/DC Converter
CD10.241
Accessories

PowerBoost

DC 24V
Nominal24 - 28V
Factory setting 24.1V
10.0 - 8.6A
Up to +60°C ambient
7.5 - 6.4A
At +70°C ambient
Derate linearly between +60°C and +70°C
12A
Up to +45°C ambient
Linear decrease to nominal power
between +45°C and +60°C
DC 24V-25%/+46%
10.5A
8ApeakAt 40°C, cold start
94.2%
14.8W
4ms
-25°C to +70°C
42x124x117mm Without DIN rail
500g

Wall/panel mount bracket
Side mount bracket

UL 61010-2-201

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

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CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

INDEX
Page
1. Intended Use .......................................................3
2. Installation Instructions ......................................3
3. DC-Input...............................................................4
4. Input Inrush Current ...........................................6
5. Soft-start Feature ................................................6
6. Output .................................................................7
7. Hold-up Time .......................................................8
8. Efficiency and Power Losses................................9
9. Functional Diagram...........................................10
10. Front Side and User Elements ...........................10
11. Terminals And Wiring .......................................11
12. Lifetime Expectancy ..........................................12
13. MTBF ..................................................................12
14. EMC ....................................................................13
15. Environment ......................................................14
16. Safety and Protection Features ........................15
17. Dielectric Strength ............................................15
18. Approved, Fulfilled or Tested Standards .........16Page
19. Regulatory Product Compliance ...................... 16
20. Physical Dimensions and Weight ..................... 17
21. Accessories ........................................................ 18
21.1. ZM2.WALL - Wall/Panel Mount Bracket .. 18
21.2. ZM12.SIDE - Side mounting bracket ........ 19
21.3. YRM2.DIODE - Redundancy Module ....... 19
21.4. UF20.241 - Buffer module ........................ 20
22. Application Notes ............................................. 21
22.1. Peak Current Capability ........................... 21
22.2. Output Circuit Breakers............................ 2222.3. Charging of Batteries ............................... 2222.4. Series Operation ....................................... 23
22.5. Parallel Use to Increase Output Power .... 23
22.6. Parallel Use for Redundancy .................... 24
22.7. Use in a Tightly Sealed Enclosure ............ 25
22.8. Mounting Orientations ............................ 26

The information given in this document is correct to the best of our knowledge and experience at the time of
publication. If not expressly agreed otherwise, this information does not represent a warranty in the legal sense of theword. As the state of our knowledge and experience is constantly changing, the information in this data sheet issubject to revision. We therefore kindly ask you to always use the latest issue of this document (available underwww.pulspower.com).
No part of this document may be reproduced or utilized in any form without our prior permission in writing.

TERMINOLOGY AND ABREVIATIONSPE andsymbolPE 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 24VA figure displayed with the AC or DC before the value represents a nominal voltage withstandard tolerances included.
E.g.: DC 12V describes a 12V battery disregarding whether it is full (13.7V) or flat (10V)24Vdc

A figure with the unit (Vac) at the end is a momentary figure without any additional
tolerances included.

may

A key word indicating flexibility of choice with no implied preference.

shall

A key word indicating a mandatory requirement.

shouldA key word indicating flexibility of choice with a strongly preferred implementation.

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

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CD10.241
CD-Series

DC/DC Converter 24V/24V, 10A, 240W

1. INTENDED USEThis device is designed for installation in an enclosure and is intended for commercial use, such as in industrial control,
process control, monitoring and measurement equipment or the like. Do not use this device in equipment where malfunction
may cause severe personal injury or threaten human life.
If this device is used in a manner outside of its specification, the protection provided by the device may be impaired.

2. INSTALLATION INSTRUCTIONSWARNING-

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

Turn power off before working on the device and protect against inadvertent re-powering.
Do not open, modify or repair the device.
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.
Do not touch during power-on, and immediately after power-off. Hot surface may cause burns.

Obey the following installation instructions:This device may only be installed and put into operation by qualified personnel.

This device does not contain serviceable parts. The tripping of an internal fuse is caused by an internal defect.
If damage or malfunction should occur during installation or operation, immediately turn power off and send unit to thefactory for inspection.
Install device in an enclosure providing protection against electrical, mechanical and fire hazards.
Install the device onto a DIN rail according to EN 60715 with the input terminals on the bottom of the device. Other
mounting orientations require a reduction in output current.
Make sure that the wiring is correct by following all local and national codes. Use appropriate copper cables that aredesigned for a minimum operating temperature of 60°C for ambient temperatures up to +45°C, 75°C for ambient
temperatures up to +60°C and 90°C for ambient temperatures up to +70°C.
Ensure that all strands of a stranded wire enter the terminal connection. Unused screw terminals should be securely
tightened.
The device is designed for pollution degree 2 areas in controlled environments. No condensation or frost is allowed.
The enclosure of the device provides a degree of protection of IP20. The enclosure does not provide protection against spilledliquids.
The input can be powered from batteries or similar DC sources. The voltage between the input terminals and ground must
not exceed 60Vdc continuously.
The input must be powered from a PELV or SELV source or an "Isolated Secondary Circuit" in order to maintain a SELV or
PELV output.
Check for correct input polarity. The device will not operate when the voltage is reversed.
A disconnecting means shall be provided for the input of the device.
The device is designed as “Class of Protection I” equipment according to IEC 61140. Do not use without a proper PE(Protective Earth) connection.
The device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do not coverventilation grid!
The device is designed for altitudes up to 5000m. See additional requirements in the product datasheet for use above 2000m.
Keep the following minimum installation clearances: 40mm on top, 20mm on the bottom, 5mm left and right side. Increase
the 5mm to 15mm in case the adjacent device is a heat source. When the device is permanently loaded with less than 50%,
the 5mm can be reduced to zero.
The device is designed, tested and approved for branch circuits up to 50A without additional protection device. If an externalfuse is utilized, do not use circuit breakers smaller than 20A B- or C-Characteristic to avoid a nuisance tripping of the circuit
breaker.
The maximum surrounding air temperature is +70°C. The operational temperature is the same as the ambient or surrounding
air temperature and is defined 2cm below the device.
The device is designed to operate in areas between 5% and 95% relative humidity.
Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

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CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

3. DC-INPUT
The input can be powered from batteries or similar DC sources and must be a PELV or SELV source or an "Isolated
Secondary Circuit" in order to maintain a SELV or PELV output.
Check for correct input polarity. The device will not operate when the voltage is reversed.
DC input
DC input range

Nom.

Allowed voltage between input
and earth/ground
Allowed input ripple voltage

Max.

Turn-on voltage
Shut-down voltage
Input current

Typ.
Typ.
Typ.
Typ.
Typ.
Typ.

Start-up delay
Rise time-25%/+46%

According to IEC 62477-1

In the frequency range from 47 to 500Hz, the momentary
input voltage must always be within the specified limits.
17.5Vdc
Steady-state value, see Fig. 3-1
15.5Vdc
Steady-state value, see Fig. 3-1
10.5A
At 24Vdc input and 24V, 10A output load , see Fig. 3-3
14.3A
At 18Vdc input and 24V, 10A output load, see Fig. 3-3
150ms
See Fig. 3-2
At 24V, 10A constant current load, 0mF load capacitance, see
110ms
Fig. 3-2
At 24V, 10A constant current load, 10mF load capacitance,
250ms
see Fig. 3-2
250mV
See Fig. 3-2
Installed inside the device, external capacitors on the input
4 300µF
are allowed without any limitations.
See recommendations in chapter 2.

Max.

Typ.
Turn-on overshootInput capacitanceDC 24V
18.035.0Vdc
60Vdc or42.2Vac
5Vpp

Max.
Typ.

External input protection
Fig. 3-1 Input voltage range

Fig. 3-2 Turn-on behavior, definitions

Rated input range

POUT

35.0Vdc

17.5Vdc
18.0Vdc

OutputVoltage- 5%
Start-up
delay

Rise
Time

OvershootTurn-on

VIN

15.5Vdc

Shut-down

Input
VoltageFig. 3-3 Input current vs. output load

Input
Current,
typ.

16A

c
Vd
18
:
t
u
Inp
Vdc
: 24
t
u
Inp

12
8
4

Output Current

0
2

3

4

5

6

7

8

9 10 11 12A

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

4/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

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 begenerated 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. 3-4.
Fig. 3-4 External input filter requirements toavoid filter instabilities
Resistance of the
supplying network

1 Ohm
100 mOhm(a)(b)

10 mOhm(a) max.
(b) typ.

1 mOhm
0.1mH

1mH

10mH

Inductance of the supplying network

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

5/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

4. INPUT INRUSH CURRENT
An active inrush limitation circuit (inrush limiting NTC resistor which is bypassed by a MOSFET) 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

Inrush energy

Max.
Max.
Typ.
Typ.
Max.

8A
10A
6Apeak8Apeak
1A2s

At +25°C ambient, cold startAt +40°C ambient, cold startAt +25°C ambient, cold startAt +40°C ambient, cold startAt +40°C ambient, cold startFig. 4-1 Typical input inrush current behavior at
nominal load and 25°C ambient

Input:
Output:Ambient:

24Vdc
24V, 10A, constant current load
25°C

Input current 2A / DIVInput voltage 5V / DIV
Output voltage 5V / DIVTime basis:
100ms / DIV

5. SOFT-START FEATURE
After the DC/DC converter is turned on, the internal output current rises slowly to its nominal value. This methodcharges 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, theDC/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.

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

6/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

6. OUTPUT
The output provides a SELV/PELV rated voltage, which is galvanically isolated from the input voltage and is designed
to supply any kind of loads, including unlimited capacitive and inductive loads.
The output is electronically protected against overload, no-load and short-circuits. In case of a protection event,
audible noise may occur.
Output voltage
Adjustment range

Nom.

24V
24-28V
30V

Max.

This is the maximum output voltage which can occur
at the clockwise end position of the potentiometer due totolerances. It is not a guaranteed value which can beachieved.
24.1V±0.2%, at full load, cold unit
Max.
25mV
Between 18 and 35Vdc input voltage variation
Max.
100mV
Between 0 and 10A load variation, static valueMax.
50mVpp
Bandwidth 20Hz to 20MHz, 50Ohm
Nom.
10A
At 24V and up to +60° ambient temperature
Nom.
7.5A
At 24V and +70° ambient temperature
Nom.
8.6A
At 28V and up to +60° ambient temperature
6.4A
Nom.
At 28V and +70° ambient temperature
Derate linearly between +60°C and +70°C, see chapter 15
12A
Nom.
At 24V and up to +45°C ambient temperature
10.3A
Nom.
At 28V and up to +45°C ambient temperaturePowerBoost decreases linearly to nominal power between +45°C and +60°C,
see chapter 15
Continuous current
Max.
15A
Continuous current, short circuit impedance typ. 100mOhm
Typ.
4 500µF
Included inside the power supply
The unit is resistant and does not show malfunctioningMax.
35V
when a load feeds back voltage to the power supply. It
does not matter whether the power supply is on or off. The
absorbing energy can be calculated according to the builtin large sized output capacitor.

Factory settingLine regulation
Load regulation
Ripple and noise voltage
Output current

PowerBoost*)

Overload behavior
Short-circuit current
Output capacitanceBack-feeding loads*) PowerBoost
This power/ current is continuously allowed up to an ambient temperature of +45°C.
Above +45°C, do not use this power or current longer than a duty cycle of 10% and/or not longer than 1 minute every 10 minutes.
Fig. 6-1 Output voltage vs. output current at
24Vdc input voltage, typ.

Fig. 6-2 Current limitation vs. input voltage,(23V constant voltage load), typ.

Output Voltage

Output Current

Adjustment
Range

28V
24
20
16
12
8
4
0

Output Current

0

2

4

6

8

10

12

14 16A

14A
13.5
13.0
12.5
12.0
11.5
11.0
10.5
10.0

Input Voltage

18

21

24

27

30

33

36Vdc

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

7/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

7. HOLD-UP TIME
The input side of the DC/DC converter is equipped with a bulk capacitor which keeps the output voltage alive for acertain 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.
At no load, the hold-up time can be up to several seconds. The green DC OK LED is also on during this time.
Hold-up Time

Typ.
Min..
Typ.
Min..

8ms
6.5ms
4ms
3.2ms

At 24Vdc input voltage, 24V, 5A output, see Fig. 7-1
At 24Vdc input voltage, 24V, 5A output, see Fig. 7-1
At 24Vdc input voltage, 24V, 10A output, see Fig. 7-1
At 24Vdc input voltage, 24V, 10A output, see Fig. 7-1

Fig. 7-1 Hold-up time vs. input voltage
Hold-up Time8ms(a) (b)6(c)4

Input Voltage(a) 24V, 5A, typ.
(b) 24V, 5A, min.
(c) 24V, 10A, typ.
(d) 24V, 10A, min.

20

24

2
0
18

(d)

22

28Vdc

26

Fig. 7-2 Shut-down test setup

S1

+

DC
Source-DC/DC
Converter
Input+

IntputVoltage

S1 opens+

CD10
Output -Fig. 7-3 Shut-down behavior, definitions

Load

-

- 5%

OutputVoltage
Hold-up TimeMar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

8/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

8. EFFICIENCY AND POWER LOSSES
Efficiency
Average efficiency*)
Power losses

*)

Typ.
Typ.
Typ.

Input 24Vdc
94.2%
93.7%
94.3%

Typ.
Typ.
Typ.
Typ.

1.75W
6.8W
14.8W
19.5W

At 24V, 10A
At 24V, 12A (PowerBoost)At 25% at 2.5A, 25% at 5A,
25% at 7.5A. 25% at 10A
At no output load
At 24V, 5A
At 24V, 10A
At 24V, 12A (PowerBoost)

The average efficiency is an assumption for a typical application where the power supply is loaded with 25% of the nominal load for 25%of the time, 50% of the nominal load for another 25% of the time, 75% of the nominal load for another 25% of the time and with 100%of the nominal load for the rest of the time.
Fig. 8-1

Efficiency vs. output current at 24V
output and 24Vdc input voltage, typ.

Losses vs. output current at 24V
output and 24Vdc input voltage, typ.

Fig. 8-2

Efficiency

Power Losses

95%

18W

94

15

93

12

92

9

91

6

90

3
Output Current

89
2

4

6

8

10

12A

0

Fig. 8-3

Efficiency vs. input voltage at 24V,
10A, typ.
Efficiency

Fig. 8-4

95%

19W

94.5

18

94.0

17

93.5

16

93.0

15

92.5
92.0
18

22

24

26

2

4

30 32Vdc

10

12A

Input Voltage

13
28

8

6

Losses vs. input voltage at 24V, 10A,
typ.
Power Losses

14

Input Voltage

20

Output Current

0

18

20

22

24

26

28

30 32Vdc

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

9/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

9. FUNCTIONAL DIAGRAM
Fig. 9-1 Functional diagram
OutputVoltage
Regulator+
ChassisGroundInput Fuse&
Input Filter

ReversePolarity
Protection&
InrushLimiterPower
Converter

OutputFilterOutputOverVoltage
Protection

VOUT

+
+
DC
ok

10. FRONT SIDE AND USER ELEMENTS
Fig. 10-1 Front sideA

Input terminals+ Positive input- Negative / return input
Chassis ground: to bond the housing to ground, PE or Functional EarthB

Output terminals
Screw terminals, dual terminals per pole, both pins are equal+ Positive output (two identical + poles)- Negative / return output (two identical - poles)

C

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

D

DC OK LED (green)
On when the voltage on the output terminals is > 21V

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

10/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

11. TERMINALS AND WIRING
The terminals are IP20 Finger safe constructed and suitable for field- and factory wiring.
Input
Screw terminals
Max. 6mm2Max. 4mm2
20-10 AWG
2.8mm
1Nm
7mm
3.5mm slotted or Phillips No 1

Type
Solid wire
Stranded wire
American Wire Gauge
Max. wire diameter (including ferrules)
Recommended tightening torque
Wire stripping length
Screwdriver

OutputScrew terminals
Max. 6mm2Max. 4mm2
20-10 AWG
2.8mm
1Nm
7mm
3.5mm slotted or Phillips No 1

Daisy chaining of outputs:
Daisy chaining (jumping from one DC/DC-converter output to the next) is allowed as long as the average output
current through one terminal pin does not exceed 25A. If the current is higher, use a separate distribution terminal
block.
Fig. 11-1 Daisy chaining of outputs

Fig. 11-2 Using distribution terminals

max 25A!
Output+ + - -

Output+ + - -

DC/DC
Converter
Input

+

-

Output+ + - -

Output+ + - -

DC/DC
Converter

DC/DC
Converter

DC/DC
Converter

Input

Input

Input

Load

+

-

Load

Distribution
Terminals

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

11/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

12. LIFETIME EXPECTANCYThe Lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by
the lifetime expectancy of the built-in electrolytic capacitors. Lifetime expectancy is specified in operational hours andis calculated according to the capacitor’s manufacturer specification. The manufacturer of the electrolytic capacitors
only guarantees a maximum life of up to 15 years (131 400h). Any number exceeding this value is a calculated
theoretical lifetime which can be used to compare devices.

Lifetime expectancy

Input 24Vdc
299 000h
103 000h
56 000h
844 000h
292 000h
159 000h

At 24V, 5A and 40°C
At 24V, 10A and 40°C
At 24V, 12A and 40°C
At 24V, 5A and 25°C
At 24V, 10A and 25°C
At 24V, 12A and 25°C

13. MTBF
MTBF stands for Mean Time Between Failures, which is calculated according to statistical device failures, and indicatesreliability 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.
The MTBF figure is a statistical representation of the likelihood of a device to fail. A MTBF figure of e.g. 1 000 000h
means that statistically one unit will fail every 100 hours if 10 000 units are installed in the field. However, it can not
be determined if the failed unit has been running for 50 000h or only for 100h.
For these types of units the MTTF (Mean Time To Failure) value is the same value as the MTBF value.

MTBF SN 29500, IEC 61709
MTBF MIL HDBK 217F

Input 24Vdc
731 000h
1 321 000h
267 000h
392 000h
64 000h86 000h

At 24V, 10A and 40°C
At 24V, 10A and 25°C
At 10A and 40°C; Ground Benign GB40
At 10A and 25°C; Ground Benign GB25
At 10A and 40°C; Ground Fixed GF40
At 10A and 25°C; Ground Fixed GF25

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

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CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

14. EMCThe EMC behaviour of the device is designed for applications in industrial environment as well as in residential,commercial and light industry environments.
The device is investigated according to the generic standards EN 61000-6-1, EN 61000-6-2, EN 61000-6-3,
EN IEC 61000-6-8 and EN 61000- 6-4.
EMC Immunity
Electrostatic discharge
Electromagnetic RF field

EN 61000-4-2

Fast transients (Burst)

EN 61000-4-3
EN 61000-4-3
EN 61000-4-4

Surge voltage on input

EN 61000-4-5

Surge voltage on output

EN 61000-4-5

Conducted disturbanceEN 61000-4-6

Contact discharge
Air discharge
80MHz-2.7GHz
2.7GHz-6GHz
Input lines
Output lines++/-  chassis ground++ / -  chassis ground0.15-80MHz

8kV
15kV
20V/m
10V/m
4kV
2kV
1kV
2kV
500V
1kV
20V

Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A

Criterion
A: The device shows normal operation behavior within the defined limits.

EMC Emission
Conducted emission on
input lines
Conducted emission on
output lines

Limits for DC power networks
according to EN 61000-6-3
fulfilled
Limits for DC power networks
according to EN IEC 61000-6-8
fulfilledClass B

IEC/CISPR 16-1-2, IEC/CISPR 16-2-1

IEC/CISPR 16-1-2, IEC/CISPR 16-2-1

Radiated emission
EN 55011, EN 55032
This device complies with FCC Part 15 rules.
Operation is subjected to following two conditions: (1) this device may not cause harmful interference, and (2) thisdevice must accept any interference received, including interference that may cause undesired operation.
Switching Frequency
Main converter

50kHz to 300kHz

Output load and input voltage dependentMar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

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CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

15. ENVIRONMENTThe operational temperature is the ambient or
surrounding temperature and is defined as the
air temperature 2cm below the device.
-40°C to +85°C
For storage and transportation
3.2W/°C
Between +45°C and +60°C
6W/°C
Between +60°C and +70°C
15W/1000m or 5K/1000m
For altitudes >2000m, see Fig. 15-2
9W/-5kPa or 3K/-5kPa
For atmospheric pressures <80kPa, see Fig. 15-2
The derating is not hardware controlled. The customer has to take care by himself tostay below the de-rated current limits in order not to overload the unit.
5 to 95% r.h.
According to IEC 60068-2-30
110-47kPa
See Fig. 15-2 for details
Up to 5000m
See Fig. 15-2 for details
2
According to IEC 62477-1, not conductive
2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g
According to IEC 60068-2-6
2 hours / axis
30g 6ms, 20g 11ms
According to IEC 60068-2-27
3 bumps / direction, 18 bumps in total
Shock and vibration is tested in combination with DIN rails according to EN 60715 with aheight of 15mm and a thickness of 1.3mm and standard orientation.
Some audible noise may be emitted from the power supply during no load, overload or
short circuit.

Operational temperature-25°C to +70°C

Storage temperature
Output derating

Humidity
Atmospheric pressure
AltitudeDegree of pollution
Vibration sinusoidal
Shock

Audible noise

Fig. 15-1 Output current vs. ambient temp.
(Inom 5A; Iout with PowerBoost = 6A)

Allowed Output Current at 24V

Allowed Output Current at 24V

12A

12A
B

A

10A

A... Continuous
B... Short term

6A
4A
0
-25

C
B

10A

A

8A

8A

2A

Fig. 15-2 Output current vs. altitude

6A
4A
2A

Ambient Temperature

0

20

40

60 70°C

A... Ambient < 60°C
B... Ambient < 45°C
C... Short term

Altitude 0mAP*) 110kPa

2000m
80kPa

*) Atmospheric pressure

4000m
62kPa

6000m
47kPa

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

14/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

16. SAFETY AND PROTECTION FEATURES
Isolation resistance

Min.

500MOhm

Min.

500MOhm

Min.

500MOhm

PE resistanceMax.

0.1OhmOutput over-voltage protection

Typ.
Max.

At delivered condition between input and output,
measured with 500Vdc
At delivered condition between input and Chassis
Ground, measured with 500Vdc
At delivered condition between output and Chassis
Ground, measured with 500Vdc
Resistance between PE terminal and the housing in
the area of the DIN rail mounting bracket.

31Vdc
32.5Vdc
In case of an internal defect, a redundant circuit limits the maximum
output voltage. The output shuts down and automatically attempts torestart.
III
According to IEC 61140
IP 20
According to EN/IEC 60529
Not included
MOV (Metal
For protection values see chapter 14 (EMC).
Oxide Varistor)
Not user replaceable slow-blow high-braking
Includedcapacity fuse
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.

Class of protection
Degree of protection
Over-temperature protection
Input transient protection
Internal input fuse
Touch current (leakage current)

17. DIELECTRIC STRENGTH
The output voltage is floating and has no ohmic connection to the ground.
The output is insulated to the input by a double or reinforced insulation.
Type and routine tests are conducted by the manufacturer. Field tests may be conducted in the field using theappropriate test equipment which applies the voltage with a slow ramp (2s up and 2s down). Connect all inputterminals together as well as all output poles before conducting the test. When testing, set the cut-off current settings
to the value in the table below.

Type test

60s

A
1500Vac

Routine test

5s

1500Vac

1500Vac

500VacField test

5s

1000Vac

1000Vac

500VacCut-off current setting

40mA

20mA

12mA

Fig. 17-1 Dielectric strength

Input
+

B

-

OutputA
Chassisground+C-

B
1500Vac

C
500Vac

It is recommend that either the + pole, the – pole or any other partof the output circuit shall be connected to the earth/ground system.
This helps to avoid situations in which a load starts unexpectedly or
can not be switched off when unnoticed earth faults occur.

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

15/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

18. APPROVED, FULFILLED OR TESTED STANDARDSUL 61010-2-201

IEC 61010-2-201

IEC 60950-1

VDMA 24364

UL Certificate
Listed equipment for category NMTR - Electrical Equipment for
Measurement, Control and Laboratory Use - Particular requirements
for control equipment
Applicable for US and Canada
E-File: E198865
CB Scheme Certificate
IEC 61010-2-201 Electrical Equipment for Measurement, Control andLaboratory Use - Particular requirements for control equipment
CB Scheme Certificate
General safety requirements for Information Technology Equipment(ITE)
Paint Wetting Impairment Substances Test (or LABS-Test)
Tested for Zone 2 and test class C1 according to VDMA 24364-C1-L/W
for solvents and water-based paints

19. REGULATORY PRODUCT COMPLIANCE
EU Declaration ofConformity
REACH Regulation (EU)

WEEE RegulationKC

The CE mark indicates conformance with the- EMC directive- RoHS directive
Manufacturer's Statement
EU regulation regarding the Registration, Evaluation,
Authorisation and Restriction of Chemicals (REACH) fulfilled.
Manufacturer's Declaration
EU Regulation on Waste Electrical and Electronic Equipment
Registered as business to business (B2B) products.
EU Regulation 2012/19/EU
KC Korean Certification
Korean - Registration of Broadcasting and Communication
Equipment
Registered under Clause3, Article 58-2 of Radio Waves Act.
Registration No. R-R-PUG-CD10_241.

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

16/26

CD10.241
CD-Series

DC/DC Converter 24V/24V, 10A, 240W

20. PHYSICAL DIMENSIONS AND WEIGHT
Width
HeightDepth

WeightDIN rail
Housing material
Installation clearances

42mm
124mm
117mm
The DIN rail depth must be added to the unit depth to calculate the total required
installation depth.
500g
Use 35mm DIN rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
Body: Aluminium alloy
Cover: Zinc-plated steel
See chapter 2

Fig. 20-1 Front viewFig. 20-2 Side viewAll dimensions in mm

All dimensions in mm

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

17/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

21. ACCESSORIES
21.1. ZM2.WALL - WALL/PANEL MOUNT BRACKET
These brackets are used to mount the device on a flat surface or panel without utilizing a DIN rail. The brackets can bemounted without detaching the DIN rail brackets.
The order number ZM2.WALL contains two brackets needed for one device.
Fig. 21-1 ZM2.Wall

Fig. 21-2 Hole patternFig. 21-3 Side viewAll dimensions in mm

All dimensions in mm

Fig. 21-4 Isometric viewFig. 21-5 Isometric viewFig. 21-6 Isometric view

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

18/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

21.2. ZM12.SIDE - SIDE MOUNTING BRACKETThis bracket is used to mount the device sideways with or without utilizing a DIN rail.
The two aluminum brackets and the black plastic slider of the unit have to be detached, so that the steel brackets can bemounted.
For sideway DIN rail mounting, the removed aluminum brackets and the black plastic slider need to be mounted on the steel
bracket.

*)Fig. 21-7 ZM12.SIDE Side mounting

Fig. 21-8 Side mounting with DIN rail

bracket *)brackets *)PSU for illustration purpose only.

21.3. YRM2.DIODE - REDUNDANCY MODULEThe YRM2.DIODE is a dual redundancy module, which can be used to build 1+1 or

N+1 redundant systems.
The device is equipped with two input channels each 10A nominal, which areindividually decoupled by utilizing diode technology. The output can be loadedwith nominal 20A.
The device does not require an additional auxiliary voltage and is self-powered
even in case of a short circuit across the output.
The device has a monitoring circuit included and is the perfect choice when the
power supply has no DC OK function. Two LEDs and two relay contacts signal
when one of the two input voltages is not in range due to a non-functioning or
disconnected power supply.
The unit is very slender and only requires 32mm width on the DIN rail.
See chapter 22.6 for wiring information.

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

19/26

CD10.241
CD-Series

DC/DC Converter 24V/24V, 10A, 240W

21.4. UF20.241 - BUFFER MODULEThe UF20.241 buffer module is a supplementary device for 24V DC/DC converters. It
delivers power to bridge typical supply voltage faults or extends the hold-up timeafter turn-off of the input power.
In times when the DC/DC converter provides sufficient voltages, the buffer module
stores energy in integrated electrolytic capacitors. In case of a supply voltage fault,
this energy is released again in a regulated process.
The buffer module does not require any control wiring. It can be added in parallel tothe load circuit at any given point.
One buffer module can deliver 20A additional current. Buffer modules can be addedin parallel to increase the output ampacity or the hold-up time.

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

20/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

22. APPLICATION NOTES
22.1.

PEAK CURRENT CAPABILITY

The unit can deliver peak currents (up to several milliseconds) which are higher than the specified short term currents.
This helps to start current demanding loads. Solenoids, contactors and pneumatic modules often have a steady state
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. The same situation applies when starting a capacitive load.
The peak current capability also ensures the safe operation of subsequent circuit breakers of load circuits. The loadbranches are often individually protected with circuit breakers or fuses. In case of a short or an overload in one branch
circuit, the fuse or circuit breaker need a certain amount of over-current to open in a timely manner. This avoids
voltage loss in adjacent circuits.
The extra current (peak current) is supplied by the power converter and the built-in large sized output capacitors of
the power supply. The capacitors get discharged during such an event, which causes a voltage dip on the output. The
following two examples show typical voltage dips:
Fig. 22-1 Peak loading with 2x the nominal current
for 50ms, typ.

Peak load 20A (resistive load) for 50ms
Output voltage dips from 24V to 16V.
Peak current voltage dips

typ.
typ.
typ.

Fig. 22-2 Peak loading with 4x the nominal current
for 5ms, typ.

Peak load 40A (resistive load) for 5ms
Output voltage dips from 24V to 6V.
from 24V to 16Vfrom 24V to 12V
from 24V to 6V

at 20A for 50ms, resistive load
at 40A for 2ms, resistive load
at 40A for 5ms, resistive load

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

21/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

22.2. OUTPUT CIRCUIT BREAKERS
Standard miniature circuit breakers (MCB’s or UL 1077 circuit breakers) are commonly used for AC-supply systems andmay also be used on 24V branches.
MCB’s are designed to protect wires and circuits. If the ampere value and the characteristics of the MCB are adapted to
the wire size that is used, the wiring is considered as thermally safe regardless of whether the MCB opens or not.
To avoid voltage dips and under-voltage situations in adjacent 24V branches which are supplied by the same source, afast (magnetic) tripping of the MCB is desired. A quick shutdown within 10ms is necessary corresponding roughly tothe ride-through time of PLC's. This requires power supplies with high current reserves and large output capacitors.
Furthermore, the impedance of the faulty branch must be sufficiently small in order for the current to actually flow.
The best current reserve in the power supply does not help if Ohm’s law does not permit current flow. The following
table has typical test results showing which B- and C-Characteristic MCBs magnetically trip depending on the wire crosschapter and wire length.
The following test results indicate the maximal wire length for a magnetic (fast) tripping. The wire length is always
two times the distance to the load (+ and - wire).
Fig. 22-3 Test circuit for maximum wire length

DC/DC
Converter

MCB

Load

+

DC

+
Wire length

S1-

DC S1... Fault simulation switch

22.3.

Test results for maximum wire length:0.75mm²
23m
13m
4m
1m
8m
1m
-

C-2A
C-3A
C-4A
C-6A
B-6A
B-10A
B-13A

1.0mm²
25m
15m
6m
2m
10m
2m
1m

1.5mm²
41m
23m
8m
2m
14m
2m
2m

2.5mm²
71m
33m
13m
5m
23m
3m
3m

CHARGING OF BATTERIESThe device can be used to charge lead-acid or maintenance free batteries. Two 12V SLA or VLRA batteries are neededin series connection.
Instructions for charging batteries:a)Ensure that the ambient temperature of the Device is below 45°C.

b)

Set output voltage, measured at no load and at the battery end of the cable, very precisely to the end-of-charge
voltage.

c)End-of-charge voltage

27.8V

27.5V

27.15V

26.8V

Battery temperature

10°C

20°C

30°C

40°C

Use a 16A circuit breaker or blocking diode between the Device and the battery.

d)Ensure that the output current of the Device 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 Device (battery discharge current) is typ. 10mA when the Device is switched off except
in case a blocking diode is utilized.

g)

Do not use the devices for battery charging in mounting orientations other than the standard mounting
orientation or in any other condition where a reduction of the output current is required (e.g. altitude).

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

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CD10.241
CD-Series

DC/DC Converter 24V/24V, 10A, 240W

22.4. SERIES OPERATION
Devices of the same type can be connected in series for higher output voltages.
It is possible to connect as many units in series as needed, providing the sum of
the output voltage does not exceed 150Vdc. Voltages with a potential above
60Vdc must be installed with a protection against touching.
Avoid return voltage (e.g. from a decelerating motor or battery) which isapplied to the output terminals.

Unit A
Input

OutputUnit B

Keep an installation clearance of 15mm (left / right) between two power
supplies and avoid installing the power supplies on top of each other. Do not
use power supplies in series in mounting orientations other than the standard
mounting orientation.

Input

Output

+
+

Load

+
-

-

Pay attention that EMI and inrush current will increase when using multiple devices.

22.5.

PARALLEL USE TO INCREASE OUTPUT POWER

Devises can be paralleled to increase the output power. The output voltage
shall be adjusted to the same value (±100mV) with the same load conditions on
all devices, or the devices can be left with the factory settings.

Unit AInput

The ambient temperature is not allowed to exceed +45°C.
If more than three devices are connected in parallel, a fuse or circuit breakerwith a rating of 15A or 16A is required on each output. Alternatively, a diodeor redundancy module can also be utilized.
Keep an installation clearance of 15mm (left / right) between two devices andavoid installing devices on top of each other. Do not use devices in parallel inmounting orientations other than the standard mounting orientation or in any
other condition where a reduction of the output current is required (e.g.
altitude).

OutputUnit B
Input

Output

+
-

Load

+
+
-

Pay attention that EMI and inrush current will increase when using multiple devices.

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

23/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

22.6.

PARALLEL USE FOR REDUNDANCY

1+1 Redundancy:
Devices can be paralleled for redundancy to gain higher system availability. Redundant systems require a certain
amount of extra power to support the load in case one device fails. The simplest way is to put two devices in parallel.
This is called a 1+1 redundancy. In case one device fails, the other one is automatically able to support the load current
without any interruption. It is essential to use a redundancy module to decouple devices from each other. This
prevents that the defective unit becomes a load for the other device and the output voltage cannot be maintained any
more.
1+1 redundancy allows ambient temperatures up to +70°C.
Pay attention that EMI and inrush current will increase when using multiple devices.
Recommendations for building redundant power systems:- Use separate input fuses for each device.
- Use separate supply systems for each device whenever it is possible.
- Monitor the outputs of the individual devices. Use the DC OK LED or the Redundancy-OK contact, which is includedin the YR20.246 redundancy module.
- It is desirable to set the output voltages of all devices to the same value (± 100mV) or leave it at the factory setting.
N+1 Redundancy:
Redundant systems for a higher power demand are usually built in a N+1 method. E.g. four devices, each rated for 10A
are paralleled to build a 30A redundant system.
Pay attention that EMI and inrush current will increase when using multiple devices.
Keep an installation clearance of 15mm (left / right) between two devices and avoid installing the devices on top ofeach other.
Do not use devices in parallel in mounting orientations other than the standard mounting orientation or in any othercondition, where a reduction of the output current is required.
For N+1 redundancy the ambient temperature is not allowed to exceed +45°C.
Wiring examples for 1+1 and N+1 redundancy:
Fig. 22-5 N+1 Redundant configuration for 30A load current
with multiple DC/DC converters and redundancy modules

Fig. 22-4 1+1 Redundant configuration for 10A
load current
FailureMonitorFailureMonitor+-+- o oo oInput Input
1 2
2
1
Input ok

+ + - Output+- +- o oo oInput Input
1 2
2
1
Input ok

+ + - Output

DC/DC
Converter

YRM2.DIODE

DC/DC
Converter

YRM2.DIODE

DC/DC
Converter

YRM2.DIODE

DC/DC
Converter

+ I

Input

Output
+-

+ I

+

Input

Output+-+ I+ + - Output+- +- o oo oInput Input
1 2
2
1
Input ok

+ + - Output+- +- o oo oInput Input
1 2
2
1
Input ok

YRM2.DIODE

DC/DC
Converter

YRM2.DIODE

DC/DC
Converter

YRM2.DIODE

Redundancy
ModuleInput

Output+-+ I

Redundancy
ModuleInput

Output+-+ I

Redundancy
ModuleOutput+---Functional Earth

Redundancy
Moduleoptional

I

+

Input

Output+-Redundancy
Moduleoptional

Input

+ -

Redundancy
Module+- +- o oo oInput Input
1 2
2
1
Input ok

optional+ + - Output

optional+- +- o oo oInput Input
1 2
2
1
Input ok

optional+ + - Output

Load

Load

Functional Earth

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

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CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

22.7.

USE IN A TIGHTLY SEALED ENCLOSURE

When the device is installed in a tightly sealed enclosure, the temperature inside the enclosure will be higher thanoutside. In such situations, the inside temperature defines the ambient temperature for the device.
In the following test setup, the device is placed in the middle of the enclosure; no other heat producing items are
inside the enclosure. The load is placed outside the enclosure.
The temperature sensor inside the enclosure is placed in the middle of the right side of the device with a distance of
1cm.
The following measurement results can be used as a reference to estimate the temperature rise inside the enclosure.
Enclosure size

Input voltage
Load
Temperature inside the box
Temperature outside the box
Temperature rise

Case A
110x180x165mm
Rittal Typ IP66 Box
PK 9516 100,plastic
24Vdc
24V, 8A; (=80%)
52.2°C
31.0°C
21.2K

Case B
110x180x165mm
Rittal Typ IP66 Box
PK 9516 100,plastic
24Vdc
24V, 10A; (=100%)
59.3°C
31.4°C
27.9K

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0Germany

25/26

CD10.241
DC/DC Converter 24V/24V, 10A, 240W

CD-Series

22.8.

MOUNTING ORIENTATIONSMounting orientations other than input terminals on the bottom and output on the top require a reduction incontinuous output power or a limitation in the maximum allowed ambient temperature.
The listed lifetime and MTBF values from this datasheet apply only for the standard mounting orientation.
The following curves give an indication for allowed output currents for altitudes up to 2000m.
Fig. 22-6
Mounting
Orientation A(Standardorientation)

Allowed Output Current at 24V
OUTPUT

12A
10A

DC/DC
Converter

7.5A
0

INPUT

+45

+60 +70°C

Ambient Temperature

Fig. 22-7
Mounting
Orientation B(Upside down)

Allowed Output Current at 24V

12A

INPUT

7.5A

DC/DC
Converter

0

OUTPUT
Fig. 22-8
Mounting
Orientation C(Table-top
mounting)

12A
6.5A

+25

+60 +70°C

Ambient Temperature

Allowed Output Current at 24V

12A
OUTPUT

DC/DC
Converter

INPUT

6.5A
0

+25

+60 +70°C

Ambient Temperature

Allowed Output Current at 24V

INPUT

DC/DC
Converter

12A
OUTPUT

Fig. 22-10
Mounting
Orientation E(Horizontal ccw)

+60 +70°C

Ambient Temperature

Allowed Output Current at 24V

0

Fig. 22-9
Mounting
Orientation D(Horizontal cw)

+30

6.5A
0

+25

+60 +70°C

Ambient Temperature

Mar. 2024 / Rev. 1.6 DS-CD10.241-EN
All values are typical figures specified at 24Vdc input voltage 24V, 10A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.
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