CD10.241
P
S
Output voltage
Adjustment range
24 - 28V
Factory setting 24.1V
Output current
10 – 8.6A
At +60°C ambient
Derate linearly between +45°C and +70°C
Input voltage
DC 24V
-25%/+46%
Input current
Input inrush current
6A peak
Efficiency
Losses
14.8W
Hold
Temperature range
Size (W x H x D)
42x124x117mm
Without DIN-rail
Weight
O
M
CD-Series
RODUCT DESCRIPTION
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.
DC/DC Converter 24V/24V, 10A, 240W
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
HORT-FORM DATA
DC 24V Nominal
12 – 10.3A Below +45°C ambient
7.5 – 6.5A At +70°C ambient
10.5A
94.2%
-up time 4ms
-25°C to +70°C
500g / 1.1lb
RDER NUMBERS
DC/DC Converter
Mechanical Accessory
Sep. 2019 / Rev. 1.4 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.
CD10.241
ZM2.WALL Wall/panel mount bracket
ZM12.SIDE Side mount bracket
AIN APPROVALS
For details or a complete approval list see section 18.
Ind. Cont. Eq.
IECEx
ATEX
planned
1/27
CD10.241
I
T
CD-Series
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
DC/DC Converter 24V/24V, 10A, 240W
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.
ERMINOLOGY 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 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.
Sep. 2019 / Rev. 1.4 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.
2/27
CD10.241
1. I
2. I
WARNING
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
NTENDED USE
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.
NSTALLATION INSTRUCTIONS
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).
Sep. 2019 / Rev. 1.4 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.
3/27
CD10.241
CD-Series
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.
DC/DC Converter 24V/24V, 10A, 240W
Sep. 2019 / Rev. 1.4 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.
4/27
CD10.241
3. DC-I
DC i
DC i
Allowed voltage
and
Allowed
Turn
Shut
Input current
Start
Rise time
Turn
Input capacitance
External input protection
See recommendations in chapter 2.
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
12A
2
3 4 6
8
0
4
8
12
16A
10
Output Current
5
7
9
11
Input: 24Vdc
Input
Current,
typ.
Input: 18Vdc
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
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.
nput Nom. DC 24V -25%/+46%
nput range Min. 18.0-35.0Vdc Continuous operation
between input
earth/ground
input ripple voltage Max. 5Vpp In the frequency range from 47 to 500Hz, the
-on voltage Typ. 17.5Vdc Steady-state value, see Fig. 3-1
-down voltage Typ. 15.5Vdc Steady-state value, see Fig. 3-1
Typ. 10.5A At 24Vdc input and 24V, 10A output load , see Fig. 3-3
-up delay Typ. 200ms See Fig. 3-1
Typ. 200ms At 24V, 10A constant current load, 0mF load
-on overshoot Max. 250mV See Fig. 3-2
Typ. 4 300µF Installed inside the device, external capacitors on the
Max. 60Vdc or
Continuous operation, according to IEC 62477-1
42.2Vac
momentary input voltage must always be within the
specified limits.
Typ. 14.3A At 18Vdc input and 24V, 10A output load, see Fig. 3-3
capacitance, see Fig. 3-2
Typ. 200ms At 24V, 10A constant current load, 10mF load
capacitance, see Fig. 3-2
input are allowed without any limitations.
Fig. 3-1 Input voltage range Fig. 3-2 Turn-on behavior, definitions
Fig. 3-3 Input current vs. output load
Sep. 2019 / Rev. 1.4 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.
5/27
CD10.241
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)
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
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
Sep. 2019 / Rev. 1.4 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.
6/27
CD10.241
4. I
Inrush current
Inrush energy
5. S
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
NPUT 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.
Max. 8A At +25°C ambient, cold start
Max. 25A At +60°C ambient, cold start
Typ. 6A
Typ. 22A
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
At +25°C ambient, cold start
peak
At +60°C ambient, cold start
peak
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
OFT-START FEATURE
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.
Sep. 2019 / Rev. 1.4 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.
7/27
CD10.241
6. O
Output voltage
Adjustment range
Factory setting
24.1V
±0.2%, at full load, cold unit
Line regulation
Load regulation
Ripple and noise vo
Output current
Nom.
8.6A
At 28V and +60° ambient temperature
Overload behavior
Overload/
Output capacitance
Back
Output Voltage
0
0 4 8
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
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
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.
Nom. 24V
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.
Max. 25mV Between 18 and 35Vdc input voltage variation
Max. 100mV Between 0 and 10A load variation, static value
ltage Max. 50mVpp Bandwidth 20Hz to 20MHz, 50Ohm
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. 6.5A At 28V and +70° ambient temperature
Continuous current
short-circuit current Max. 15A Continuous current
Typ. 4 500µF Included inside the power supply
-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.
Sep. 2019 / Rev. 1.4 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.
8/27
CD10.241
7. H
Hold
0
2
4
6
8ms
18 20 22 24 28V
dc
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)
Load
+
-
DC/DC
Converter
DC
Source
+
-
Input
Output
+
-
CD10
S1
- 5%
Hold-up Time
Output
Voltage
Intput
Voltage
S1 opens
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
OLD-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.
At no load, the hold-up time can be up to several seconds. The green DC-ok lamp is also on during this time.
-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
Fig. 7-2 Shut-down test setup Fig. 7-3 Shut-down behavior, definitions
Sep. 2019 / Rev. 1.4 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.
9/27
CD10.241
8. E
Efficiency
Average effi
Power losses
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
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
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
FFICIENCY AND POWER LOSSES
Input 24Vdc
Typ. 94.2% At 24V, 10A
Typ. 93.7% At 24V, 12A (Power Boost)
ciency*) Typ. 94.3% At 25% at 2.5A, 25% at 5A,
25% at 7.5A. 25% at 10A
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.
Fig. 8-3 Efficiency vs. input voltage at 24V,
Sep. 2019 / Rev. 1.4 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.
10A, typ.
Fig. 8-4 Losses vs. input voltage at 24V, 10A,
typ.
10/27
CD10.241
9. F
+
+
-
-
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
CD-Series
UNCTIONAL DIAGRAM
Fig. 9-1 Functional diagram
RONT SIDE AND USER ELEMENTS
DC/DC Converter 24V/24V, 10A, 240W
Fig. 10-1 Front side
A Input terminals
+ Positive input
- Negative / return input
Chassis ground: to bond the housing to ground, PE or Functional Earth
B 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
Sep. 2019 / Rev. 1.4 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.
11/27
CD10.241
11. C
Type
Solid wire
Stranded wire
American Wire Gauge
Max. wire diameter (including ferrules)
Recommended tightening torq
Wire stripping length
Screwdriver
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
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
ONNECTION TERMINALS
The terminals are IP20 Finger safe constructed and suitable for field- and factory wiring.
Input Output
Screw terminals Screw terminals
Max. 6mm2 Max. 6mm2
Max. 4mm2 Max. 4mm2
20-10 AWG 20-10 AWG
2.8mm 2.8mm
ue 1Nm, 9lb.in 1Nm, 9lb.in
7mm / 0.28inch 7mm / 0.28inch
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
Sep. 2019 / Rev. 1.4 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.
12/27
CD10.241
12. L
Lifetime expectancy
103 000h
At 24V, 10A and 40°C
13. MTBF
MTBF
MTBF MIL HDBK 217F
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
IFETIME EXPECTANCY
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
299 000h At 24V, 5A 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
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
SN 29500, IEC 61709 731 000h At 24V, 10A and 40°C
1 321 000h At 24V, 10A and 25°C
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
Sep. 2019 / Rev. 1.4 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.
13/27
CD10.241
14. EMC
EMC Immunity
Electrostatic discharge
Electromagnetic
Fast transients (Burst)
Surge voltage on input
Surge
Conducted disturbance
EN 61000-4-6
0.15-80MHz
20V
Criterion A
EMC Emission
Conducted emission on
input
Conducted emission on
output lines
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1
T.B.D.
Radiated emission
This device complies with FCC Part 15 rules.
Operation is subjected to following two conditions: (1) this d
device must accept any interference received, including interference that may cause undesired operation.
Switching Frequency
Main converter
CD-Series
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 610006-4.
EN 61000-4-2 Contact discharge
Air discharge
RF field EN 61000-4-3 80MHz-2.7GHz 20V/m Criterion A
EN 61000-4-4 Input lines
Output lines
EN 61000-4-5 + - 1kV Criterion A
+/- chassis ground 2kV Criterion A
voltage on output EN 61000-4-5 + -
+ / - chassis ground
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.
DC/DC Converter 24V/24V, 10A, 240W
8kV
15kV
4kV
2kV
500V
1kV
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
Criterion A
lines
IEC/CISPR 16-1-2, IEC/CISPR 16-2-1 Limits for DC power networks
according to EN 61000-6-3
fulfilled
EN 55011, EN 55022 Class B
evice may not cause harmful interference, and (2) this
50kHz to 300kHz Output load and input voltage dependent
Sep. 2019 / Rev. 1.4 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.
14/27
CD10.241
15. E
Operational temperature
Storage temperature
Output de
Humidity
Atmospheric pressure
Altitude
Up to 6000m (20 000ft)
See Fig. 15-2 for details
Degree of pollution
Vibration sinusoidal
Shock
LABS compatibility
Corrosive gases
Audible noi
0
-25 0 20 40
70°C
2A
4A
6A
8A
10A
12A
60
Ambient Temperature
A... Continuous
B... Short term
A
B
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
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
NVIRONMENT
-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.
-40°C to +85°C (-40°F to 185°F) For storage and transportation
-rating 3.2W/°C
6W/°C
15W/1000m or 5°C/1000m
9W/-5kPa or 3°C/-5kPa
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.
5 to 95% r.h. According to IEC 60068-2-30
110-47kPa See Fig. 15-2 for details
2 According to IEC 62477-1, not conductive
2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g
2 hours / axis
30g 6ms, 20g 11ms
3 bumps / direction, 18 bumps in total
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.
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.
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.
se Some audible noise may be emitted from the power supply during no load, overload or
short circuit.
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
According to IEC 60068-2-6
According to IEC 60068-2-27
Fig. 15-1 Output current vs. ambient temp. Fig. 15-2 Output current vs. altitude at 24V
Sep. 2019 / Rev. 1.4 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.
15/27
CD10.241
16. S
Isolation resistance
PE resistance
Output over
Class of protection
Degree of protectio
Over
Input transient protection
Internal input fuse
Touch current
17. D
A
C
B
+
Input
Chassis
ground
Output
-
+
-
CD-Series
AFETY AND PROTECTION FEATURES
Min. 500MOhm At delivered condition between input and output,
Min. 500MOhm At delivered condition between input and Chassis
Min. 500MOhm At delivered condition between output and Chassis
Max. 0.1Ohm Resistance between PE terminal and the housing in
-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.
III According to IEC 61140
n IP 20 According to EN/IEC 60529
-temperature protection Not included
MOV (Metal
Oxide Varistor)
Included Not user replaceable slow-blow high-braking
(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.
DC/DC Converter 24V/24V, 10A, 240W
measured with 500Vdc
Ground, measured with 500Vdc
Ground, measured with 500Vdc
the area of the DIN-rail mounting bracket.
For protection values see chapter 14 (EMC).
capacity fuse
IELECTRIC 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 the
appropriate 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.
Sep. 2019 / Rev. 1.4 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.
Fig. 17-1 Dielectric strength
A B C
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.
16/27
CD10.241
18. A
EC Declaration of Conformity
IEC
2
IEC 61010
2
ANSI/UL
(former UL 508)
EN 60079
ATEX
planned
IEC 60079
planned
IECEx
Marine
planned
EAC TR Registration
19. ROHS, REACH
RoHS Directive
Directive 2011/65/EU of the European Parliament and
REACH Directive
IEC/EN 61558
(Annex BB)
60950-1
nd
Edition
nd
Edition
PPROVALS
-2-201
61010-2-201
-0, EN 60079-7
-0, IEC 60079-7
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
The CE mark indicates conformance with the
- EMC directive and the
- ATEX directive (planned).
CB Scheme,
Information Technology Equipment
CB Scheme for electrical equipment for measurement,
control, and laboratory use - Part 2-201: Particular
requirements for control equipment
Listed as Open Type Device for use in Control Equipment
UL Category NMTR, NMTR7
Ind. Cont. Eq.
3G Ex ec II TX Gc
II
E-File: E198865
Approval for use in hazardous locations Zone 2 Category 3G.
Number of ATEX certificate: T.B.D.
Suitable for use in Class 1 Zone 2 Groups IIa, IIb and IIc
locations. Number of IECEx certificate: T.B.D.
GL (Germanischer Lloyd) classified
Environmental category: C, EMC2
Marine and offshore applications
Registration for the Eurasian Customs Union market
(Russia, Kazakhstan, Belarus)
AND OTHER FULFILLED STANDARDS
Directive 1907/2006/EU of the European Parliament
-2-16
Sep. 2019 / Rev. 1.4 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.
Safety Isolating Transformer
the Council of June 8th, 2011 on the restriction of the
use of certain hazardous substances in electrical and
electronic equipment.
and the Council of June 1
Registration, Evaluation, Authorisation and Restriction
of Chemicals (REACH)
Safety Isolating Transformers corresponding to Part 2-6
of the IEC/EN 61558
st
, 2007 regarding the
17/27
CD10.241
20. P
Width
Height
Depth
Weight
DIN
Housing material
Installation
Penetration protection
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
HYSICAL DIMENSIONS AND WEIGHT
42mm 1.65’’
124mm 4.88’’
117mm 4.61’’
The DIN-rail height must be added to the unit depth to calculate the total required
installation depth.
500g / 1.10lb
-Rail 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
clearances See chapter 2
Small parts like screws, nuts, etc. with a diameter larger than 3.5mm
Fig. 20-1 Front view Fig. 20-2 Side view
Sep. 2019 / Rev. 1.4 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.
All dimensions in mm
All dimensions in mm
18/27
CD10.241
21. A
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
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
Fig. 1-4 Isometric view Fig. 1-5 Isometric view Fig. 1-6 Isometric view
All dimensions in mm
Sep. 2019 / Rev. 1.4 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.
19/27
CD10.241
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
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.
ig. 2-7
F
Side mounting
without DIN-rail brackets
with DIN-rail brackets
ig. 2-8
F
Side mounting
ig. 2-9
F
Hole pattern
All dimensions in mm
Sep. 2019 / Rev. 1.4 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.
20/27
CD10.241
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
21.3. YRM2.DIODE - REDUNDANCY MODULE
The 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 are individually
decoupled by utilizing diode technology. The output can be loaded with 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.
21.4. UF20.241 - BUFFER MODULE
The 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 time after 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 to the load
circuit at any given point.
One buffer module can deliver 20A additional current. Buffer modules can be added in
parallel to increase the output ampacity or the hold-up time.
Sep. 2019 / Rev. 1.4 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.
21/27
CD10.241
22. A
Peak current voltage dips
typ.
from 24V to 16V
at 20A for 50ms, resistive load
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
PPLICATION 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 load
branches 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.
Fig. 22-2 Peak loading with 4x the nominal current
for 5ms, typ.
Peak load 20A (resistive load) for 50ms
Output voltage dips from 24V to 16V.
typ. from 24V to 12V at 40A for 2ms, resistive load
typ. from 24V to 6V at 40A for 5ms, resistive load
Sep. 2019 / Rev. 1.4 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.
Peak load 40A (resistive load) for 5ms
Output voltage dips from 24V to 6V.
22/27
CD10.241
MCB
DC/DC
Converter
DC
DC
+
-
+
-
Load
Wire length
S1... Fault simulation switch
S1
C
C-3A
C
C
B
B
B
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
22.2. OUTPUT CIRCUIT BREAKERS
Standard miniature circuit breakers (MCB’s or UL 1077 circuit breakers) are commonly used for AC-supply systems and
may 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, a
fast (magnetic) tripping of the MCB is desired. A quick shutdown within 10ms is necessary corresponding roughly to
the 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 cross
section 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
Test results for maximum wire length:
0.75mm² 1.0mm² 1.5mm² 2.5mm²
-2A 23m 25m 41m 71m
13m 15m 23m 33m
-4A 4m 6m 8m 13m
-6A
-6A
-10A
-13A 1m 2m 3m
1m 2m 2m 5m
8m 10m 14m 23m
1m 2m 2m 3m
22.3. CHARGING OF BATTERIES
The device can be used to charge lead-acid or maintenance free batteries. Two 12V SLA or VLRA batteries are needed
in 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.
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 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).
Sep. 2019 / Rev. 1.4 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.
23/27
CD10.241
Unit A
Input
Output
Unit B
-
+
-
+
+
-
Input
Output
Load
Unit A
Input
Output
Unit B
-
+
-
+
+
-
Input
Output
Load
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 is
applied to the output terminals.
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.
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.
The ambient temperature is not allowed to exceed +45°C.
If more than three devices are connected in parallel, a fuse or circuit breaker
with a rating of 15A or 16A is required on each output. Alternatively, a diode or
redundancy module can also be utilized.
Keep an installation clearance of 15mm (left / right) between two devices and
avoid installing devices on top of each other. Do not use devices in parallel 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).
Pay attention that EMI and inrush current will increase when using multiple devices.
Sep. 2019 / Rev. 1.4 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.
24/27
CD10.241
Failure
Monitor
I
I
optional
YRM2.DIODE
Redundancy
Module
Output
Input
1
Input
2
+
-
+
-
+
-
o o
o
o
2
1
Input ok
YRM2.DIODE
Redundancy
Module
Output
Input
1
Input
2
+
-
+
-
+
-
o o o
o
2
1
Input ok
Load
Functional Earth
+
-
DC/DC
Converter
+ +
- -
+
-
Output
Input
DC/DC
Converter
+ +
- -
+
-
Output
Input
Failure
Monitor
I
optional
YRM2.DIODE
Redundancy
Module
Output
Input
1
Input
2
+-+
-
+
-
o o o o
2
1
Input ok
YRM2.DIODE
Redundancy
Module
Output
Input
1
Input
2
+-+
-
+
-
o o o
o
2
1
Input ok
Load
I
optional
YRM2.DIODE
Redundancy
Module
Output
Input
1
Input
2
+
-+-
+
-
o o o o
2
1
Input ok
I
optional
YRM2.DIODE
Redundancy
Module
Output
Input
1
Input
2
+-+
-
+
-
o o o o
2
1
Input ok
I
DC/DC
Converter
+ +
- -
+
-
Output
Input
DC/DC
Converter
+ +
- -
+
-
Output
Input
DC/DC
Converter
+ +
- -
+
-
Output
Input
DC/DC
Converter
+ +
- -
+
-
Output
Input
Functional Earth
+
-
optional
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
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 lamp or the Redundancy-ok contact, which is included
in 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 of
each other.
Do not use devices in parallel in mounting orientations other than the standard mounting orientation or in any other
condition, 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. 22-4 1+1 Redundant configuration for 10A
load current
Sep. 2019 / Rev. 1.4 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.
Fig. 22-5 N+1 Redundant configuration for 30A load current
with multiple DC/DC converters and redundancy modules
25/27
CD10.241
Enclosure size
Input voltage
Load
Tem
Temperature outside the box
Temperature rise
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
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 than
outside. 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.
Case A Case B
110x180x165mm
Rittal Typ IP66 Box
PK 9516 100,
plastic
24Vdc 24Vdc
perature inside the box 52.2°C 59.3°C
21.2K 27.9K
24V, 8A; (=80%) 24V, 10A; (=100%)
31.0°C 31.4°C
110x180x165mm
Rittal Typ IP66 Box
PK 9516 100,
plastic
Sep. 2019 / Rev. 1.4 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.
26/27
CD10.241
Allowed Output Current at 24V
0
+45 +70°C
7.5A
10A
12A
Ambient Temperature
+60
Converter
Allowed Output Current at 24V
0
+30 +70°C
7.5A
12A
Ambient Temperature
+60
Allowed Output Current at 24V
0
+25 +70°C
6.5A
12A
Ambient Temperature
+60
Allowed Output Current at 24V
0
+25 +70°C
6.5A
12A
Ambient Temperature
+60
Converter
Allowed Output Current at 24V
0
+25 +70°C
6.5A
12A
Ambient Temperature
+60
CD-Series
DC/DC Converter 24V/24V, 10A, 240W
22.8. MOUNTING ORIENTATIONS
Mounting orientations other than input terminals on the bottom and output on the top require a reduction in
continuous 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 (6560ft).
Fig. 22-6
Mounting
Orientation A
(Standard
orientation)
Fig. 22-7
Mounting
Orientation B
(Upside down)
OUTPUT
DC/DC
Converter
INPUT
INPUT
DC/DC
Fig. 22-8
Mounting
Orientation C
(Table-top
mounting)
Fig. 22-9
Mounting
Orientation D
(Horizontal cw)
Fig. 22-10
Mounting
Orientation E
(Horizontal ccw)
INPUT
OUTPUT
Converter
OUTPUT
DC/DC
DC/DC
OUTPUT
INPUT
Sep. 2019 / Rev. 1.4 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.
27/27
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