Datasheet
CD5.241-S1
CD-Series 
DC/DC Converter 24V, 5A 
15. ENVIRONMENT 
Operational temperature 
*)  -25°C to +70°C (-13°F to 158°F)  Reduce output power according Fig. 15-1 
Storage temperature  -40 to +85°C (-40°F to 185°F)  For storage and transportation 
Output de-rating  1.6W/°C  45-60°C (113°F to 140°F) 
  3W/°C  60-70°C (140°F to 158°F) 
Humidity 
**)  5 to 95% r.H.  IEC 60068-2-30 
Vibration sinusoidal  2-17.8Hz: ±1.6mm; 17.8-500Hz: 2g 
2 hours / axis 
IEC 60068-2-6 
Shock  30g 6ms, 20g 11ms 
3 bumps / direction, 18 bumps in total 
IEC 60068-2-27 
Altitude  0 to 6000m (0 to 20 000ft)  Reduce output power or ambient temperature 
above 2000m sea level. 
Altitude de-rating  7.5W/1000m or 5°C/1000m  above 2000m (6500ft), see Fig. 15-2 
Over-voltage category  III  IEC 62103, EN 50178, altitudes up to 2000m 
  II  Altitudes from 2000m to 6000m 
Degree of pollution  2  IEC 62103, EN 50178, not conductive 
*)  Operational temperature is the same as the ambient temperature and is defined as the air temperature 2cm below the unit. 
**) Do not energize while condensation is present 
  Fig. 15-1 Output current vs. ambient temp.    Fig. 15-2 Output current vs. altitude at 24V 
0
-25 0 20 40
70°
C
1
2
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4
5
6A
60
Ambient Temperature
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Allowable Output
Current at 24V
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0 2000 4000
6000m
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6A
Altitude
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Allowable Output
Current at 24V
16. PROTECTION FEATURES 
Output protection  Electronically protected against overload, no-load and short-circuits 
*) 
Output over-voltage protection typ. 31Vdc 
max. 32Vdc 
in case of an internal power supply defect, a redundant 
circuit limits the maximum output voltage. The output 
shuts down and automatically attempts to restart. 
Reverse input polarity protection  Included  unit does not start when input voltage is reversed 
Output over-current protection electronically limited *) see Fig. 5-1 
Degree of protection  IP 20  EN/IEC 60529 
Penetration protection  > 3.5mm  e.g. screws, small parts 
Over-temperature protection  yes  output shut-down with automatic restart 
Input transient protection  MOV  Metal Oxide Varistor 
Internal input fuse  T10A H.B.C.  not user replaceable 
*)  In case of a protection event, audible noise may occur. 
Oct 2009 / Rev. 1.3 DS-CD5.241-S1-EN 
All parameters are specified at 24V, 5A, 24Vdc input voltage, 25°C ambient and after a 5 minutes run-in time unless otherwise noted. 
www.pulspower.com Phone +49 89 9278 0 Germany 
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