PULS

Power supply unit

DIMENSION series

CD-series

Power supply unit (PSU) / DC/DC-Converter
20% power reserve

ATEX approval
galvanic isolation
20% power reserve

11Vdc-16.2Vdc (12Vdc nom.)
8.4-10.8Vdc for max. 60s

DC

4.8A (at 24Vdc; -25...+45°C)
4A (at 24Vdc; +45...+60°C)
3A (at 24Vdc; +70°C)
2.5W/+60°C...+70°C (derating)

116W (ambient less than 45°C)
96W (ambient less than 60°C)

23-28Vdc (adjustable)
300mV turn-ON overshoot

3ms (buffer time at 12Vdc input)

screw-clamp connections

output overvoltage protection (31Vdc typ. / 32Vdc max.)
Short-circuit current -- min. 6A continuous current (short circuit impedance 200mΩ) / max. 9A continuous current (short circuit impedance 200mΩ)
Series / parallel operation -- The DC/DC-converter can be paralleled to increase the output power. Devices can be paralleled for 1+1 redundancy to gain higher system availability. Daisy chaining (jumping from 1 DC/DC-converter output to the next) is allowed as long as the average output current through 1 terminal pin does not exceed 25A. If the current is higher use a separate distribution terminal block.
Back-feeding loads max. 30V -- 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.
Reverse polarity protection

0.877 (24Vdc 4A input)

32 mm

DIN rail mounting

W32mm x H124mm x D102mm

Aluminium housing

-25...+70 °C

9.2A (12Vdc input; full 24Vdc output; 4A)
1.3A peak max. inrush (at 12Vdc input)

(12Vdc input; 24V output load; 4A) 13.5 W
(12Vdc input; 24V output load; 2A) 6.2 W

For galvanic isolation in mobile applications e.g. ships or forklifts

Commercialized

CD5243

(output stage) 2200 μF

CE marking
UL 508
UL 60950-1
IEC 60950-1 CB-Scheme
IECEx
ATEX
Class I Div. 2 HazLoc
GL Marine
ABS Marine
EAC Registration
EN 61000-6-1 Immunity for residential environments
EN 61000-6-2 Immunity for industrial environments
EN 61000-6-3 Emission for residential environments
EN 61000-6-4 Emission for industrial environments
EN 55011 / EN 55022 class B Disturbance characteristics

12V DC-Input
Isolated 24Vdc Output
Efficiency up to 87.7%
Width only 32mm
20% Output power reserve
Full power between -25°C and +60°C
Soft-start function included
Minimal inrush current surge
Reverse input polarity protection
3 Year warranty
The Dimension CD-Series offer DIN-rail DC/DC converters in the 92-120W output power range in a very compact housing. These DC/DC converters are allowed to run with a battery or similar sources. The CD5.243 converts a 12V voltage to a 24V voltage. The CD5.243 includes all the essential basic functions and has a power reserve of 20% included. This extra power can be used continuously up to +45°C. The output is electrically isolated from the input in a safe way. The input is protected against reversed voltages and contains a soft start function.

(at 40°C; 2A output; 1AC 12Vdc input) 199000 hours
(at 40°C; 4A output; 1AC 12Vdc input) 73000 hours
(at 40°C; 4.8A output; 1AC 12Vdc input) 33000 hours
(at 25°C; 4A output; 1AC 12Vdc input) 206000 hours

50mVpp (20Hz...20MHz; 50Ω)

1056000h (at 40°C; 12Vac input; MTBF SN 29500 IEC 61709)
1934000h (at 25°C; 12Vac input; MTBF SN 29500 IEC 61709)
552000h (at 40°C; 12Vac input; MTBF MIL HDBK 217F)
770000h (at 25°C; 12Vac input; MTBF MIL HDBK 217F)

450ms start-up delay (12Vdc input)
80ms rise time (nominal input; constant full current load; 0mF load capacitance)