User manual
CD5.241, CD5.241-S1
CD–Series
DC/DC Converter; 24V, 5A
Jan. 08 / Rev. 1.1 DS-CD5.241-EN / All parameters are specified at 24V, 5A and 24Vdc input at 25°C ambient unless otherwise noted.
www.pulspower.com Phone +49 89 9278 0 Germany
12/22
17. ENVIRONMENT
Operational temperature -25°C to +70°C (-13°F to 158°F) Reduce output power according to Fig. 17-1
Output de-rating 1.6W/°C 45-60°C (113°F to 140°F), see Fig. 17-1
3W/°C 60-70°C (140°F to 158°F), see Fig. 17-1
Storage temperature -40 to +85°C (-40°F to 185°F) During storage and transportation
Humidity 5 to 95% r.H. IEC 60068-2-30
Do not energize while condensation is present
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 20000ft) Reduce output power or ambient
temperature above 2000m sea level.
Output de-rating (for altitude) 7.5W/1000m or 5°C/1000m Above 2000m (6500ft), see Fig. 17-2
Over-voltage category III EN 50178, altitudes up to 2000m
II Altitudes from 2000m to 6000m
Degree of pollution 2 EN 50178, non conductive
Fig. 17-1 Output current vs. ambient temp. Fig. 17-2 Output current vs. altitude, 24V
0
-25 0 20 40 70°
C
1
2
3
4
5
6A
60
Ambient Temperature
c
o
n
t
i
n
u
o
u
s
s
h
o
r
t
t
e
r
m
Allowable Output
Current at 24V
0
0 2000 4000
6000m
1
2
3
4
5
6A
Altitude
A
.
.
.
T
a
m
b
<
6
0
°
C
B
.
.
.
T
a
m
b
<
5
0
°
C
C
.
.
.
T
a
m
b
<
4
0
°
C
C
B
A
s
h
o
r
t
t
e
r
m
Allowable Output
Current at 24V
The ambient temperature is defined 2cm below the unit.
18. 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 DC/DC converter fault, 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. 7-1
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
An audible noise may be heard during a no load, overload or short circuit event.