GE VersaPoint IC220PBI002, User Manual

Page: 173 / 202

GFK-1911B Appendix C Output Module Derating C-3
C
Power Loss of the Housing
The value for the power loss of the housing is indicated in the terminal-
specific data sheet. The permissible power loss of the housing for the
IC220MDL721 module depends on the temperature.
P
HOU
= 2.4W -25°C < T
U
≤
-5°C
P
HOU
= 2.4W - [(T
U
- (-5°C)) / 37.5 K/W] -5°C < T
U
≤
55°C
With
P
HOU
Power loss of the housing
T
U
Ambient temperature
With an ambient temperature of up to -5°C (23°F), you can load both
outputs with 2A because P
tot
> P
HOU
.