Puls Dimension CD Series User manual

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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1/27
DC/DC CONVERTER
24V DC-Input
Isolated 24Vdc Output
Efficiency 94.2%
Width only 42mm
20% Output Power Reserves
Full Power Between -25°C and +60°C
Soft-start Function
Minimal Inrush Current Surge
Reverse Input Polarity Protection
3 Year Warranty
P
RODUCT
D
ESCRIPTION
The CD10.241 is a DIN-rail mountable DC/DC converter
of the DIMENSION series which provides a floating,
stabilized and galvanically separated SELV/PELV output
voltage.
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 have a power reserve of 20% included,
which may even be used continuously at temperatures
up to +45°C.
High immunity to transients and power surges as well as
low electromagnetic emission and a large international
approval package for a variety of applications makes
this unit suitable for nearly every situation.
S
HORT
-
FORM
D
ATA
Output voltage
DC 24V Nominal
Adjustment range
24 - 28V
Factory setting 24.1V
Output current
12 – 10.3A Below +45°C ambient
10 – 8.6A
At +60°C ambient
7.5 – 6.5A At +70°C ambient
Derate linearly between +45°C and +70°C
Input voltage
DC 24V
-25%/+46%
Input current
10.5A
Input inrush current
6A peak
Efficiency
94.2%
Losses
14.8W
Hold
-up time 4ms
Temperature range
-25°C to +70°C
Size (W x H x D)
42x124x117mm
Without DIN-rail
Weight
500g / 1.1lb
O
RDER
N
UMBERS
DC/DC Converter
CD10.241
Mechanical Accessory
ZM2.WALL Wall/panel mount bracket
ZM12.SIDE Side mount bracket
M
AIN
A
PPROVALS
For details or a complete approval list see section 18.
Ind. Cont. Eq.
IECEx ATEX
planned

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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2/27
I
NDEX
Page Page
1. Intended Use .......................................................3
2. Installation Instructions ......................................3
3. DC-Input...............................................................5
4. Input Inrush Current ...........................................7
5. Soft-start Feature ................................................7
6. Output .................................................................8
7. Hold-up Time.......................................................9
8. Efficiency and Power Losses..............................10
9. Functional Diagram...........................................11
10. Front Side and User Elements...........................11
11. Connection Terminals .......................................12
12. Lifetime Expectancy ..........................................13
13. MTBF ..................................................................13
14. EMC....................................................................14
15. Environment......................................................15
16. Safety and Protection Features ........................16
17. Dielectric Strength ............................................16
18. Approvals...........................................................17
19. RoHS, REACH and Other Fulfilled Standards .. 17
20. Physical Dimensions and Weight ..................... 18
21. Accessories ........................................................ 19
21.1. ZM2.WALL – Wall/Panel Mount Bracket .19
21.2. ZM12.SIDE - Side Mount Bracket .............19
21.3. YRM2.DIODE - Redundancy Module .......21
21.4. UF20.241 - Buffer Module........................21
22. Application Notes............................................. 22
22.1. Peak Current Capability ...........................22
22.2. Output Circuit Breakers............................23
22.3. Charging of Batteries ...............................23
22.4. Series Operation .......................................24
22.5. Parallel Use to Increase Output Power....24
22.6. Parallel Use for Redundancy ....................25
22.7. Use in a Tightly Sealed Enclosure ............26
22.8. Mounting Orientations ............................27
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 the
word. As the state of our knowledge and experience is constantly changing, the information in this data sheet is
subject to revision. We therefore kindly ask you to always use the latest issue of this document (available under
www.pulspower.com).
No part of this document may be reproduced or utilized in any form without our prior permission in writing.
T
ERMINOLOGY AND
A
BREVIATIONS
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 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.
should A key word indicating flexibility of choice with a strongly preferred implementation.

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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1. I
NTENDED
U
SE
This device 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 equipment where malfunction may cause severe personal injury or threaten human life.
2. I
NSTALLATION
I
NSTRUCTIONS
WARNING
Risk of electrical shock, fire, personal injury or death.
- Turn power off before working on the device. Protect against inadvertent re-powering.
- Do not modify or repair the unit.
- Do not open the unit as high voltages may present inside.
- Use caution to prevent any foreign objects from entering 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 requirements:
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
the factory 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 are
designed 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 allowed.
The enclosure of the device provides a degree of protection of IP20.
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 ripple voltage in the low frequency range between 50Hz and 10kHz must be
negligible when used in marine applications.
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 III” equipment according to IEC 61140.
A PE (ground) connection is not required. However, connecting the chassis ground terminal to ground can be
beneficial to gain a high EMI immunity.
The device is designed for convection cooling and does not require an external fan. Do not obstruct airflow and do not
cover ventilation grid!
The device is designed for altitudes up to 6000m (19685ft). See additional requirements in this document for use above
2000m (6560ft).

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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4/27
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
external fuse 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 (+158°F). 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.

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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3. DC-I
NPUT
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 i
nput Nom. DC 24V -25%/+46%
DC i
nput range Min. 18.0-35.0Vdc Continuous operation
Allowed voltage
between input
and
earth/ground
Max. 60Vdc or
42.2Vac
Continuous operation, according to IEC 62477-1
Allowed
input ripple voltage Max. 5Vpp In the frequency range from 47 to 500Hz, the
momentary input voltage must always be within the
specified limits.
Turn
-on voltage Typ. 17.5Vdc Steady-state value, see Fig. 3-1
Shut
-down voltage Typ. 15.5Vdc Steady-state value, see Fig. 3-1
Input current
Typ. 10.5A At 24Vdc input and 24V, 10A output load , see Fig. 3-3
Typ. 14.3A At 18Vdc input and 24V, 10A output load, see Fig. 3-3
Start
-up delay Typ. 200ms See Fig. 3-1
Rise time
Typ. 200ms At 24V, 10A constant current load, 0mF load
capacitance, see Fig. 3-2
Typ. 200ms At 24V, 10A constant current load, 10mF load
capacitance, see Fig. 3-2
Turn
-on overshoot Max. 250mV See Fig. 3-2
Input capacitance
Typ. 4 300µF Installed inside the device, external capacitors on the
input are allowed without any limitations.
External input protection
See recommendations in chapter 2.
Fig. 3-1 Input voltage range Fig. 3-2 Turn-on behavior, definitions
Turn-on
17.5Vdc
V
IN
P
OUT
Shut-down
32.4Vdc 15.5Vdc 18.0Vdc
Rated input range
35.0Vdc
Start-up
delay Rise
Time
Overshoot
- 5%
Output
Voltage
Input
Voltage
Fig. 3-3 Input current vs. output load
12A
23 4 6 8
0
4
8
12
16A
10
Output Current
57911
Input: 24Vdc
Input
Current,
typ.
Input: 18Vdc

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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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. 3-4.
Fig. 3-4 External input filter requirements to
avoid filter instabilities
1 mOhm
10 mOhm
100 mOhm
1 Ohm
0.1mH 1mH 10mH
Inductance of the supplying network
Resistance of the
supplying network
(a) max.
(b) typ.
(a)
(b)

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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4. I
NPUT
I
NRUSH
C
URRENT
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
Max. 8A At +25°C ambient, cold start
Max. 25A At +60°C ambient, cold start
Typ. 6Apeak At +25°C ambient, cold start
Typ. 22Apeak At +60°C ambient, cold start
Inrush energy
Max. 1A2s Between -25°C to +70°C, cold start
Fig. 4-1 Typical input inrush current behavior at
nominal load and 25°C ambient
Input: 24Vdc
Output: 24V, 10A, constant current load
Ambient: 25°C
Input current 2A / DIV
Input voltage 5V / DIV
Output voltage 5V / DIV
Time basis: 100ms / DIV
5. S
OFT
-
START
F
EATURE
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 soft-
start function. Please note, that this function increases the rise time of the output voltage by a small amount.

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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6. O
UTPUT
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
Nom. 24V
Adjustment range
Min. 24-28V Guaranteed value from 23-28V
Max. 30V This is the maximum output voltage which can occur
at the clockwise end position of the potentiometer due
to tolerances. It is not a guaranteed value which can be
achieved.
Factory setting
24.1V
±0.2%, at full load, cold unit
Line regulation
Max. 25mV Between 18 and 35Vdc input voltage variation
Load regulation
Max. 100mV Between 0 and 10A load variation, static value
Ripple and noise vo
ltage Max. 50mVpp Bandwidth 20Hz to 20MHz, 50Ohm
Output current
Nom. 12A At 24V and an ambient temperature below +45°C
Nom. 10A At 24V and +60° ambient temperature
Nom. 7.5A At 24V and +70° ambient temperature
Nom. 10.3A At 28V and an ambient temperature below +45°
Nom.
8.6A
At 28V and +60° ambient temperature
Nom. 6.5A At 28V and +70° ambient temperature
Overload behavior
Continuous current
Overload/
short-circuit current Max. 15A Continuous current
Output capacitance
Typ. 4 500µF Included inside the power supply
Back
-feeding loads Max. 35V The unit is resistant and does not show malfunctioning
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
built-in large sized output capacitor.
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
0048
4
8
12
28V
16
20
24
16A
62 10 12 14
Adjustment
Range
Output Current
Output Current
21 27
14A
13.0
13.5
36Vdc302418
10.0
10.5
11.0
11.5
12.5
12.0
33
Input Voltage

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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9/27
7. H
OLD
-
UP
T
IME
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.
At no load, the hold-up time can be up to several seconds. The green DC-ok lamp is also on during this time.
Hold
-up Time Typ. 8ms At 24Vdc input voltage, 24V, 5A output, see Fig. 7-1
Min.. 6.5ms At 24Vdc input voltage, 24V, 5A output, see Fig. 7-1
Typ. 4ms At 24Vdc input voltage, 24V, 10A output, see Fig. 7-1
Min.. 3.2ms At 24Vdc input voltage, 24V, 10A output, see Fig. 7-1
Fig. 7-1 Hold-up time vs. input voltage
0
2
4
6
8ms
18 20 22 24 28Vdc
Input Voltage
Hold-up Time
(a) 24V, 5A, typ.
(b) 24V, 5A, min.
(c) 24V, 10A, typ.
(d) 24V, 10A, min.
26
(a) (b)
(c) (d)
Fig. 7-2 Shut-down test setup Fig. 7-3 Shut-down behavior, definitions
Load
+
-
DC/DC
Converter
DC
Source
+
-
Input
Output
+
-
CD10
S1
- 5%
Hold-up Time
Output
Voltage
Intput
Voltage
S1 opens

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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10/27
8. E
FFICIENCY AND
P
OWER
L
OSSES
Input 24Vdc
Efficiency
Typ. 94.2% At 24V, 10A
Typ. 93.7% At 24V, 12A (Power Boost)
Average effi
ciency*) Typ. 94.3% At 25% at 2.5A, 25% at 5A,
25% at 7.5A. 25% at 10A
Power losses
Typ. 1.75W At no output load
Typ. 6.8W At 24V, 5A
Typ. 14.7W At 24V, 10A
Typ. 19.5W At 24V, 12A
*) 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.
Fig. 8-2 Losses vs. output current at 24V
output and 24Vdc input voltage, typ.
Efficiency
2
90
92
94
89
95%
12A4 8 10
Output Current
6
91
93
Power Losses
0 2 4 8 10 12A
0
3
9
15
18W
6
6
12
Output Current
Fig. 8-3 Efficiency vs. input voltage at 24V,
10A, typ.
Fig. 8-4 Losses vs. input voltage at 24V, 10A,
typ.
Efficiency
18 20 22 26 28 32Vdc
95%
92.5
93.5
94.5
94.0
93.0
92.0
24 30
Input Voltage
Power Losses
13
14
15
16
17
18
19W
18 20 24 26 28 32Vdc
22 30
Input Voltage

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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11/27
9. F
UNCTIONAL
D
IAGRAM
Fig. 9-1 Functional diagram
+
+
-
-
V
OUT
Input Fuse
&
Input Filter
Output
Voltage
Regulator
Power
Converter Output
Filter
DC
ok
Output
Over-
Voltage
Protection
Reverse
Polarity
Protection
&
Inrush
Limiter
Chassis
Ground
+
-
10. F
RONT
S
IDE AND
U
SER
E
LEMENTS
Fig. 10-1 Front side
AInput terminals
+Positive input
-Negative / return input
Chassis ground:to bond the housing to ground, PE or Functional Earth
BOutput terminals
Screw terminals, dual terminals per pole, both pins are equal
+Positive output (two identical + poles)
-Negative / return output (two identical - poles)
COutput voltage potentiometer
Open the flap to set the output voltage. Factory set: 24.1V
DDC-OK LED (green)
On when the voltage on the output terminals is > 21V

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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12/27
11. C
ONNECTION
T
ERMINALS
The terminals are IP20 Finger safe constructed and suitable for field- and factory wiring.
Input Output
Type
Screw terminals Screw terminals
Solid wire
Max. 6mm2Max. 6mm2
Stranded wire
Max. 4mm2Max. 4mm2
American Wire Gauge
20-10 AWG 20-10 AWG
Max. wire diameter (including ferrules)
2.8mm 2.8mm
Recommended tightening torq
ue 1Nm, 9lb.in 1Nm, 9lb.in
Wire stripping length
7mm / 0.28inch 7mm / 0.28inch
Screwdriver
3.5mm slotted or Phillips No 1 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
DC/DC
Converter
++ - -
Input
Output
Load
+ -
max 25A!
DC/DC
Converter
++ - -
Input
Output
Load
+ -
Distribution
Terminals
DC/DC
Converter
++
- -
Input
Output
DC/DC
Converter
++
- -
Input
Output

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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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12. L
IFETIME
E
XPECTANCY
The 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 and
is 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.
Input 24Vdc
Lifetime expectancy
299 000h At 24V, 5A and 40°C
103 000h
At 24V, 10A and 40°C
56 000h At 24V, 12A and 40°C
844 000h At 24V, 5A and 25°C
292 000h At 24V, 10A and 25°C
159 000h At 24V, 12A and 25°C
13. MTBF
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.
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.
Input 24Vdc
MTBF
SN 29500, IEC 61709 731 000h At 24V, 10A and 40°C
1 321 000h At 24V, 10A and 25°C
MTBF MIL HDBK 217F
358 000h At 10A and 40°C; Ground Benign GB40
556 000h At 10A and 25°C; Ground Benign GB25
731 000h At 10A and 40°C; Ground Fixed GF40
142 000h At 10A and 25°C; Ground Fixed GF25

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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 [phone] Germany
14/27
14. EMC
The EMC behavior 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 and EN 61000-
6-4.
EMC Immunity
Electrostatic discharge
EN 61000-4-2 Contact discharge
Air discharge
8kV
15kV
Criterion A
Criterion A
Electromagnetic
RF field EN 61000-4-3 80MHz-2.7GHz 20V/m Criterion A
Fast transients (Burst)
EN 61000-4-4 Input lines
Output lines
4kV
2kV
Criterion A
Criterion A
Surge voltage on input
EN 61000-4-5 + - 1kV Criterion A
+/-chassis ground 2kV Criterion A
Surge
voltage on output EN 61000-4-5 + -
+ / - chassis ground
500V
1kV
Criterion A
Criterion A
Conducted disturbance
EN 61000-4-6
0.15-80MHz
20V
Criterion A
Criterions:
A: The device shows normal operation behavior within the defined limits.
C: Temporary loss of function is possible. The device may shut down and restarts by itself. No damage or hazards for the device will occur.
EMC Emission
Conducted emission on
input
lines
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1 Limits for DC power networks
according to EN 61000-6-3
fulfilled
Conducted emission on
output lines
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1
T.B.D.
Radiated emission
EN 55011, EN 55022 Class B
This device complies with FCC Part 15 rules.
Operation is subjected to following two conditions: (1) this d
evice may not cause harmful interference, and (2) this
device must accept any interference received, including interference that may cause undesired operation.
Switching Frequency
Main converter
50kHz to 300kHz Output load and input voltage dependent

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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 [phone] Germany
15/27
15. E
NVIRONMENT
Operational temperature
-25°C to +70°C (-13°F to 158°F) The operational temperature is the ambient or
surrounding temperature and is defined as the
air temperature 2cm below the device.
Storage temperature
-40°C to +85°C (-40°F to 185°F) For storage and transportation
Output de
-rating 3.2W/°C
6W/°C
15W/1000m or 5°C/1000m
9W/-5kPa or 3°C/-5kPa
Between +45°C and +60°C (113°F to 140°F)
Between +60°C and +70°C (140°F to 158°F)
For altitudes >2000m (6560ft), see Fig. 15-2
For atmospheric pressures <80kPa, see Fig. 15-2
The de-rating is not hardware controlled. The customer has to take care by himself to
stay below the de-rated current limits in order not to overload the unit.
Humidity
5 to 95% r.h. According to IEC 60068-2-30
Atmospheric pressure
110-47kPa See Fig. 15-2 for details
Altitude
Up to 6000m (20 000ft)
See Fig. 15-2 for details
Degree of pollution
2 According to IEC 62477-1, not conductive
Vibration sinusoidal
2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g
2 hours / axis
According to IEC 60068-2-6
Shock
30g 6ms, 20g 11ms
3 bumps / direction, 18 bumps in total
According to IEC 60068-2-27
Shock and vibration is tested in combination with DIN-Rails according to EN 60715 with a
height of 15mm and a thickness of 1.3mm and standard orientation.
LABS compatibility
As a rule, only non-silicon precipitating materials are used. The unit conforms to the
LABS criteria and is suitable for use in paint shops.
Corrosive gases
Tested according to ISA-71.04-1985, Severity Level G3 and IEC 60068-2-60 Test Ke
Method 4 for a service life of minimum 10years in these environments.
Audible noi
se Some audible noise may be emitted from the power supply during no load, overload or
short circuit.
Fig. 15-1 Output current vs. ambient temp. Fig. 15-2 Output current vs. altitude at 24V
0
-25 020 40 70°C
2A
4A
6A
8A
10A
12A
60
Ambient Temperature
A... Continuous
B... Short term
AB
Allowed Output Current at 24V
2000m 4000m 6000m
2A
4A
6A
8A
10A
12A
Altitude
Allowed Output Current at 24V
AP
*)
80kPa 62kPa 47kPa110kPa
0m
*) Atmospheric pressure
A... Ambient < 60°C
B... Ambient < 45°C
C... Short term
A
B
C

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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 [phone] Germany
16/27
16. S
AFETY AND
P
ROTECTION
F
EATURES
Isolation resistance
Min. 500MOhm At delivered condition between input and output,
measured with 500Vdc
Min. 500MOhm At delivered condition between input and Chassis
Ground, measured with 500Vdc
Min. 500MOhm At delivered condition between output and Chassis
Ground, measured with 500Vdc
PE resistance
Max. 0.1Ohm Resistance between PE terminal and the housing in
the area of the DIN-rail mounting bracket.
Output over
-voltage protection Typ. 31Vdc
Max. 32.5Vdc
In case of an internal defect, a redundant circuit limits the maximum
output voltage. The output shuts down and automatically attempts to
restart.
Class of protection
III According to IEC 61140
Degree of protectio
n IP 20 According to EN/IEC 60529
Over
-temperature protection Not included
Input transient protection
MOV (Metal
Oxide Varistor)
For protection values see chapter 14 (EMC).
Internal input fuse
Included Not user replaceable slow-blow high-braking
capacity fuse
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.
17. D
IELECTRIC
S
TRENGTH
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 the
appropriate test equipment which applies the voltage with a slow ramp (2s up and 2s down). Connect all input-
terminals 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.
Fig. 17-1 Dielectric strength A B C
A
C
B
+
Input
Chassis
ground
Output
-
+
-
Type test 60s 1500Vac 1500Vac 500Vac
Routine test 5s 1500Vac 1500Vac 500Vac
Field test 5s 1000Vac 1000Vac 500Vac
Cut-off current setting 40mA 20mA 12mA
It is recommend that either the + pole, the – pole or any other part
of 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.

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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 [phone] Germany
17/27
18. A
PPROVALS
EC Declaration of Conformity
The CE mark indicates conformance with the
- EMC directive and the
- ATEX directive (planned).
IEC
60950-1
2
nd Edition
CB Scheme,
Information Technology Equipment
IEC 61010
-2-201
2
nd Edition
CB Scheme for electrical equipment for measurement,
control, and laboratory use - Part 2-201: Particular
requirements for control equipment
ANSI/UL
61010-2-201
(former UL 508)
Ind. Cont. Eq.
Listed as Open Type Device for use in Control Equipment
UL Category NMTR, NMTR7
E-File: E198865
EN 60079
-0, EN 60079-7
ATEX
planned
II 3G Ex ec II TX Gc
Approval for use in hazardous locations Zone 2 Category 3G.
Number of ATEX certificate: T.B.D.
IEC 60079
-0, IEC 60079-7
planned
IECEx
Suitable for use in Class 1 Zone 2 Groups IIa, IIb and IIc
locations. Number of IECEx certificate: T.B.D.
Marine
planned
GL (Germanischer Lloyd) classified
Environmental category: C, EMC2
Marine and offshore applications
EAC TR Registration
Registration for the Eurasian Customs Union market
(Russia, Kazakhstan, Belarus)
19. R
O
HS,
REACH
AND
O
THER
F
ULFILLED
S
TANDARDS
RoHS Directive
Directive 2011/65/EU of the European Parliament and
the Council of June 8th, 2011 on the restriction of the
use of certain hazardous substances in electrical and
electronic equipment.
REACH Directive
Directive 1907/2006/EU of the European Parliament
and the Council of June 1st, 2007 regarding the
Registration, Evaluation, Authorisation and Restriction
of Chemicals (REACH)
IEC/EN 61558
-2-16
(Annex BB)
Safety Isolating Transformer Safety Isolating Transformers corresponding to Part 2-6 of the IEC/EN 61558

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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 [phone] Germany
18/27
20. P
HYSICAL
D
IMENSIONS AND
W
EIGHT
Width
42mm 1.65’’
Height
124mm 4.88’’
Depth
117mm 4.61’’
The DIN-rail height must be added to the unit depth to calculate the total required
installation depth.
Weight
500g / 1.10lb
DIN
-Rail Use 35mm DIN-rails according to EN 60715 or EN 50022 with a height of 7.5 or 15mm.
Housing material
Body: Aluminium alloy
Cover: zinc-plated steel
Installation
clearances See chapter 2
Penetration protection
Small parts like screws, nuts, etc. with a diameter larger than 3.5mm
Fig. 20-1 Front view Fig. 20-2 Side view
All dimensions in mm
All dimensions in mm

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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 [phone] Germany
19/27
21. A
CCESSORIES
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 be
mounted without detaching the DIN-rail brackets.
The order number ZM2.WALL contains two brackets needed for one device.
Fig. 1-1 ZM2.Wall Fig. 1-2 Hole pattern Fig. 1-3 Side view
All dimensions in mm
All dimensions in mm
Fig. 1-4 Isometric view Fig. 1-5 Isometric view Fig. 1-6 Isometric view

CD10.241
CD-Series DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4DS-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 [phone] Germany
20/27
21.2. ZM12.SIDE -SIDE MOUNT BRACKET
This ZM12.SIDE bracket is used to mount the device sideways with or without utilizing a DIN-rail to
save installation depth.
The two aluminum brackets and the black plastic slider of the unit have to be detached, so that the
ZM12.SIDE steel bracket can be mounted.
For sideway DIN-rail mounting, the removed aluminum brackets and the black plastic slider need to be
mounted on the ZM12.SIDE steel bracket.
Fig. 2-7
Side mounting
without DIN-rail brackets
Fig. 2-8
Side mounting
with DIN-rail brackets
Fig. 2-9
Hole pattern
All dimensions in mm