Derating 35 (38)
Installation Manual T-Rx 1000/1500 FSK12 FSK12 Version: B4 Document-ID: 945814-000 Author: SH
16 Derating
The maximum possible total output current of the T-Rx 1500 receiver is more than 50 A. As the
internal switch losses in the receiver generates heat the maximum output current can not be used
over the whole specied temperature range.
16.1 Convection cooling
If a T-Rx 1500 receiver is located in free, quasi-stationary air (convection cooling) the maxi-
mum allowed output current must be reduced according to Figure 25.
0
5
10
15
20
25
30
35
-25 -20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70
Allowed total output A
Ambient temperature °C
Figure 25. Convection cooling. Max. allowed output current versus ambient temperature