Puls CD10.482 Data Sheet

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

1/26

DC/DC CONVERTER

▪ 48V DC-Input
▪ Isolated 48Vdc Output
▪ Efficiency 95.1%
▪ 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

PRODUCT DESCRIPTION

The CD10.482 is a DIN-rail mountable DC/DC converter of the

SHORT-FORM DATA

Output voltage

DC 48V

Nominal

Adjustment range

48 - 56V

Factory setting 48.0V

Output current

6 – 5.2A

Below +45°C ambient

5 – 4.3A

At +60°C ambient

3.8 – 3.2A

At +70°C ambient

Derate between +60°C and +70°C

Input voltage

DC 48V

±25%

Input current

5.3A

Input inrush current

7A peak

Efficiency

95.1%

Losses

12.4W

Hold-up time

7.7ms

Temperature range

-25°C to +70°C

Size (W x H x D)

42x124x117mm

Without DIN-rail

Weight

500g / 1.1lb

ORDER NUMBERS

MAIN APPROVALS

Ind. Cont. Eq.

planned

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 CD10.482 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

Mechanical Accessory

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

For details or a complete approval list see section 18.

CD10.482

ZM2.WALL Wall/panel mount bracket
ZM12.SIDE Side mount bracket

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

2/26

INDEX

Page Page

TERMINOLOGY AND ABREVIATIONS

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. Connection Terminals ................................................ 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. Approvals ................................................................... 16

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.

19. Other Fulfilled Standards ........................................... 16

20. Physical Dimensions and Weight ............................... 17

21. Accessories................................................................. 18

21.1. ZM2.WALL – Wall/Panel Mount Bracket .......... 18

21.2. ZM12.SIDE - Side Mount Bracket ..................... 19

21.3. YRM2.DIODE - Redundancy Module ................ 20

21.4. UF20.481 - Buffer Module ................................ 20

22. Application Notes....................................................... 21

22.1. Peak Current Capability .................................... 21

22.2. Output Circuit Breakers .................................... 22

22.3. Charging of Batteries ........................................ 22

22.4. 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

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 48V 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)

48Vdc 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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

3/26

1. INTENDED USE

This device is designed for installation in an enclosure and is intended for commercial use, such as in industrial control, process control,

2. INSTALLATION INSTRUCTIONS

WARNING

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.

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:

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 is allowed.
The enclosure of the device provides a degree of protection of IP20. The enclosure does not provide protection against spilled liquids.
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 cover ventilation
grid!
The device is designed for altitudes up to 5000m (16400ft). See additional requirements in the product datasheet for use above 2000m
(6560ft).
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 10A 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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

4/26

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

DC input

Nom.

DC 48V

±25%

DC input range

Min.

36-60Vdc

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.

10Vpp

In the frequency range from 47 to 500Hz, the momentary input
voltage must always be within the specified limits.

Turn-on voltage

Typ.

35Vdc

Steady-state value, see Fig. 3-1

Shut-down voltage

Typ.

31Vdc

Steady-state value, see Fig. 3-1

Input current

Typ.

5.3A

At 48Vdc input and 48V, 5A output load, see Fig. 3-3

Typ.

7.0A

At 36Vdc input and 48V, 5A output load, see Fig. 3-3

Start-up delay

Typ.

530ms

See Fig. 3-1

Rise time

Typ.

80ms

At 48V, 5A constant current load, 0mF load capacitance, see Fig.
3-2

Typ.

380ms

At 48V, 5A constant current load, 5mF load capacitance, see Fig.
3-2

Turn-on overshoot

Max.

500mV

See Fig. 3-2

Input capacitance

Typ.

1 650µF

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

6A

1

2 3

4

0

2

4

6

8A

5

Output Current

Input: 48Vdc

Input Current, typ.

Input: 36Vdc

order to maintain a SELV or PELV output.
Check for correct input polarity. The device will not operate when the voltage is reversed.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

5/26

Requirements for the Supplying Source

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)

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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

6/26

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-

Inrush current

Max.

10A

peak

Temperature independent

Typ.

7A

peak

Temperature independent

Inrush energy

Max.

1A2s

Temperature independent

Fig. 4-1 Typical input inrush current behavior at nominal load and

25°C ambient

Input Current

Input Voltage

Output Voltage

Ipk 7A

Input: 48Vdc
Output: 48V, 5A, constant current load
Ambient: 25°C

Input current 2A / DIV
Input voltage 10V / DIV
Output voltage 10V / DIV
Time basis: 100ms / DIV

5. SOFT-START FEATURE

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

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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

7/26

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

Output voltage

Nom.

48V

Adjustment range

Min.

48-56V

Guaranteed value

Max.

58.0V

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

48.0V

±0.2%, at full load, cold unit

Line regulation

Max.

50mV

Between 36 and 60Vdc input voltage variation

Load regulation

Max.

200mV

Between 0 and 5A load variation, static value

Ripple and noise voltage

Max.

100mVpp

Bandwidth 20Hz to 20MHz, 50Ohm

Output current

Nom.

6A

At 48V and an ambient temperature below +45°C

Nom.

5A

At 48V and +60° ambient temperature

Nom.

3.8A

At 48V and +70° ambient temperature

Nom.

5.2A

At 56V and an ambient temperature below +45°

Nom.

4.3A

At 56V and +60° ambient temperature

Nom.

3.2A

At 56V and +70° ambient temperature

Overload behavior

Continuous current

Overload/ short-circuit current

Max.

9A

RMS current, short circuit impedance <90mOhm

Output capacitance

Typ.

1 750µF

Included inside the power supply

Back-feeding loads

Max.

63V

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 48Vdc input

voltage, typ.

Fig. 6-2 Current limitation vs. input voltage, (46V

constant voltage load), typ.

Output Voltage

0

0 2 4

8

16

24

56V

32

40

48

8A31 5 6 7

Adjustment

Range

Output Current

5.0

6.0

7.0A

30 35 45 50 60Vdc

Input Voltage

Output Current

6.5

55

5.5

40

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.
The input voltage must also fulfill the SELV/PELV requirements.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

8/26

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 a certain period of time

Hold-up Time

Typ.

14ms

At 48Vdc input voltage, 48V, 2.5A output, see Fig. 7-1

Min.

11ms

At 48Vdc input voltage, 48V, 2.5A output, see Fig. 7-1

Typ.

7.7ms

At 48Vdc input voltage, 48V,.5A output, see Fig. 7-1

Min.

6.2ms

At 48Vdc input voltage, 48V, 5A output, see Fig. 7-1

Fig. 7-1 Hold-up time vs. input voltage

0

3

9

12

18ms

36 40 44 48 56Vdc

Input Voltage

Hold-up Time

52

(a)

(b)

(c)
(d)

6

15

(a) 48V, 2.5A, typ.
(b) 48V, 2.5A, min.
(c) 48V, 5A, typ.
(d) 48V, 5A, min.

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

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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

9/26

8. EFFICIENCY AND POWER LOSSES

Input 48Vdc

Efficiency

Typ.

95.1%

At 48V, 5A

Typ.

94.9%

At 48V, 6A (Power Boost)

Average efficiency*)

Typ.

94.6%

At 25% at 1.25A, 25% at 2.5A,
25% at 3.75A. 25% at 5A

Power losses

Typ.

2.1W

At no output load

Typ.

6.7W

At 48V, 2.5A

Typ.

12.4W

At 48V, 5A

Typ.

15.5W

At 48V, 6A

*) 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

Fig. 8-1 Efficiency vs. output current at 48V output and

48Vdc input voltage, typ.

Fig. 8-2 Losses vs. output current at 48V output and

48Vdc input voltage, typ.

Efficiency

1

91

93

95

90

96%

6A2 4 5

Output Current

3

92

94

Power Losses

0 1 2 4 5 6A

0

3

9

15

18W

6

3

12

Output Current

Fig. 8-3 Efficiency vs. input voltage at 48V, 10A, typ.

Fig. 8-4 Losses vs. input voltage at 48V, 10A, typ.

Efficiency

36 40

44

52 56 60Vdc

96%

93.5

94.5

95.5

95.0

94.0

93.0
48

Input Voltage

Power Losses

10

11

12

13

14

15

16W

36 40

48

52 56 60Vdc44

Input Voltage

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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

10/26

9. FUNCTIONAL DIAGRAM

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. FRONT SIDE AND USER ELEMENTS

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

+ 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: 48.0V

D DC-OK LED (green)

On when the voltage on the output terminals is > 40V

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

11/26

11. CONNECTION TERMINALS

The terminals are IP20 Finger safe constructed and suitable for field- and factory wiring.

Input

Output

Type

Screw terminals

Screw terminals

Solid wire

Max. 6mm2

Max. 6mm2

Stranded wire

Max. 4mm2

Max. 4mm2

American Wire Gauge

20-10 AWG

20-10 AWG

Max. wire diameter (including ferrules)

2.8mm

2.8mm

Recommended tightening torque

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

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

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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

12/26

12. LIFETIME EXPECTANCY

The Lifetime expectancy shown in the table indicates the minimum operating hours (service life) and is determined by the lifetime

Input 48Vdc

Lifetime expectancy

160 000h

At 48V, 5A and 40°C

307 000h

At 48V, 2.5A and 40°C

112 000h

At 48V, 6A and 40°C

453 000h

At 48V, 5A and 25°C

868 000h

At 48V, 2.5A and 25°C

318 000h

At 48V, 6A and 25°C

13. MTBF

Input 48Vdc

MTBF SN 29500, IEC 61709

853 000h

At 48V, 5A and 40°C

1 512 000h

At 48V, 5A and 25°C

MTBF MIL HDBK 217F

285 000h

At 48V, 5A and 40°C; Ground Benign GB40

421 000h

At 48V, 5A and 25°C; Ground Benign GB25

71 000h

At 48V, 5A and 40°C; Ground Fixed GF40

97 000h

At 48V, 5A and 25°C; Ground Fixed GF25

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.

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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

13/26

14. EMC

The EMC behavior of the device is designed for applications in industrial environment as well as in residential, commercial and light

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

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

Radiated emission

EN 55011, EN 55032

Class B

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) this device must accept
any interference received, including interference that may cause undesired operation.

Switching Frequency

Main converter

75kHz to 500kHz

Output load and input voltage dependent

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.

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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

14/26

15. ENVIRONMENT

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 5000m (16 400ft)

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 noise

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 48V

0

-25 0 20 40

70°C

1A

2A

3A

4A

5A

6A

60

Ambient Temperature

A... Continuous
B... Short term

A

B

Allowed Output Current at 48V

2000m 4000m 6000m

1A

2A

3A

4A

5A

6A

Altitude

Allowed Output Current at 48V

AP

*)

80kPa 62kPa 47kPa110kPa

0m

*) Atmospheric pressure

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

A

B

C

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

15/26

16. SAFETY AND PROTECTION FEATURES

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.

58Vdc

Max.

60Vdc

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

I

According to IEC 61140

Degree of protection

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. DIELECTRIC STRENGTH

The output voltage is floating and has no ohmic connection to the ground.

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

20mA

15mA

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 cannot be switched off
when unnoticed earth faults occur.

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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

16/26

18. APPROVALS

IEC 60950-1
2nd Edition

CB Scheme,
Information Technology Equipment

IEC 61010-2-201
2nd 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.

19. OTHER FULFILLED STANDARDS

EC Declaration of Conformity

EU Declaration of Conformity
Trade conformity assessment for Europe
The CE mark indicates conformance with the European

- RoHS directive,

- EMC directive,

- Low-voltage directive (LVD)

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)

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,

17/26

20. PHYSICAL DIMENSIONS AND WEIGHT

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

25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

18/26

21. ACCESSORIES

21.1. ZM2.WALL – WALL/PANEL MOUNT BRACKET

Fig. 21-1 ZM2.Wall

Fig. 21-2 Hole pattern

Fig. 21-3 Side view

All dimensions in mm

All dimensions in mm

Fig. 21-4 Isometric view

Fig. 21-5 Isometric view

Fig. 21-6 Isometric view

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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

19/26

21.2. ZM12.SIDE - SIDE MOUNT BRACKET

Fig. 21-7

Side mounting

without DIN-rail brackets

Fig. 21-8

Side mounting

with DIN-rail brackets

Fig. 21-9

Hole pattern

All dimensions in mm

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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

20/26

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 system.
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 are 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. UF20.481 - BUFFER MODULE

The UF20.481 buffer module is a supplementary device for 48V 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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

21/26

22. APPLICATION NOTES

22.1. PEAK CURRENT CAPABILITY

Fig. 22-1 10A Resistive peak load (2x the nominal current) for

50ms, typ.

Fig. 22-2 25A Resistive peak load (5x the nominal current) for 5ms,

typ.

10ms/DIV

Output Voltage

Output
Current

0A

10A

32V

48V

2ms/DIV

Output
Voltage

Output Current

0A

25A

13V

48V

Peak current voltage dips

typ.

from 48V to 32V

At 10A for 50ms, resistive load

typ.

from 48V to 28V

At 25A for 2ms, resistive load

typ.

from 48V to 13V

At 25A for 5ms, resistive load

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:

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

22/26

22.2. OUTPUT CIRCUIT BREAKERS

Fig. 22-3 Test circuit for maximum wire length

Test results for maximum wire length:

MCB

DC/DC

Converter

DC

DC

+

-

+

-

Load

Wire length

S1... Fault simulation switch

S1

0.75mm²

1.0mm²

1.5mm²

2.5mm²

C-2A

43m

54m

82m

117m

C-3A

21m

28m

41m

66m

C-4A

9m

11m

15m

23m

C-6A

3m

3m

4m

6m

B-6A

11m

13m

20m

30m

B-10A

2m

2m

3m

4m

End-of-charge voltage

55.6V

55.0V

54.3V

53.6V

Battery temperature

10°C

20°C

30°C

40°C

Standard miniature circuit breakers (MCB’s or UL 1077 circuit breakers) are commonly used for AC-supply systems and may also be used
on 48V 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).

22.3. CHARGING OF BATTERIES

The device can be used to charge lead-acid or maintenance free batteries. Four 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.

c) Use a 10A 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. 6mA 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).

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

23/26

22.4. SERIES OPERATION

Unit A

Input

Output

Unit B

-

+

-

+

+

-

Input

Output

Load

Unit A

Input

Output

Unit B

-

+

-

+

+

-

Input

Output

Load

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

10A 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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

24/26

22.6. PARALLEL USE FOR REDUNDANCY

Fig. 22-4 1+1 Redundant configuration for 5A load current

with a dual redundancy module

Fig. 22-5 N+1 Redundant configuration for 15A load current

with multiple DC/DC converters and redundancy modules

Load

Failure

Monitor

YRM2.DIODE

Redundancy
Module

Output

Input

1

Input

2

+-+

-

+

-

o o o o

2

1

Input ok

DC/DC

Converter

+ +

- -

+

-

Output

Input

I I

optional

DC/DC

Converter

+ +

- -

+

-

Output

Input

Functional Earth

+

-

Load

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

Failure

Monitor

I I

optional

DC/DC

Converter

+ +

- -

+

-

Output

Input

DC/DC

Converter

+ +

- -

+

-

Output

Input

DC/DC

Converter

+ +

- -

+

-

Output

Input

DC/DC

Converter

+ +

- -

+

-

Output

Input

+

-

Functional Earth

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 DC-ok contact, which are included in the redundancy
module YRM2.DIODE.

- 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:

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

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DC/DC Converter 48V/48V, 5A, 240W

25/26

22.7. USE IN A TIGHTLY SEALED ENCLOSURE

Case A

Case B

Enclosure size

110x180x165mm
Rittal Typ IP66 Box
PK 9516 100,
plastic

110x180x165mm
Rittal Typ IP66 Box
PK 9516 100,
plastic

Input voltage

48Vdc

48Vdc

Load

48V, 4A; (=80%)

48V, 5A; (=100%)

Temperature inside the box

43.5°C

48.1°C

Temperature outside the box

26.2°C

26.6°C

Temperature rise

17.3K

21.5K

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.

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.

CD10.482

CD-Series

DC/DC Converter 48V/48V, 5A, 240W

26/26

22.8. MOUNTING ORIENTATIONS

Fig. 22-6

Mounting
Orientation A

(Standard
orientation)

DC/DC

Converter

OUTPUT

INPUT

Allowed Output Current at 48V

0

+45 +70°C

3.8A

5A

6A

Ambient Temperature

+60

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

DC/DC

Converter

OUTPUT

INPUT

Allowed Output Current at 48V

0

+30 +70°C

4A

6A

Ambient Temperature

+60

Fig. 22-8
Mounting
Orientation C

(Table-top
mounting)

Allowed Output Current at 48V

0

+25 +70°C

3.5A

6A

Ambient Temperature

+60

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

DC/DC

Converter

OUTPUT

INPUT

Allowed Output Current at 48V

0

+25 +70°C

3.5A

6A

Ambient Temperature

+60

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

DC/DC

Converter

OUTPUT

INPUT

Allowed Output Current at 48V

0

+25 +70°C

3.5A

6A

Ambient Temperature

+60

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).

Jun 2020 / Rev. 1.0 DS-CD10.482-EN All values are typical figures specified at 48Vdc input voltage 48V, 5A output load,
25°C ambient and after a 5 minutes run-in time unless otherwise noted.