Derating Factors As A Function Of The Ambient Temperature - Siemens SINAMICS S120 Equipment Manual

Power Modules
3.7 Technical specifications
3.7.3

Derating factors as a function of the ambient temperature

The units can supply 100 % output current at an ambient air temperature of between 0 °C
and 45 °C. The maximum output current decreases linearly to 90 % at ambient air
temperatures of between 45 °C and 50 °C.
Figure 3-12
78
Maximum current as a function of ambient temperature
Chassis Liquid Cooled Power Units
Manual, (GH7), 01/2011, 6SL3097-4AM00-0BP1