Siemens PM240 - Derating Specifications

Technical specifications
Power Module PM240
68 Hardware Installation Manual, 07/2009, A5E00807525B AD
Operating temperature derating
The operating temperature range is shown diagramatically in the figures below:
Ambient operating temperature [°C]
Permissible output base load current [%]
High overload (HO)
Ambient operating temperature [°C]
Permissible output base load current [%]
Light overload (LO)
100
75
74
50
25
0
010 20 30 40 50 60
100
50
25
0
010 20 30 40 50 60
75
66
Figure 6-1 Current derating for temperature, FSA … FSF
Ambient operating temperature [°C]
Permissible output base load current [%]
High overload (HO) and light overload (LO)
100
75
85
50
25
0
010 20 30 40 50 55
Figure 6-2 Current derating for temperature, FSGX