Installing/Mounting
3.2 Air cooling requirements
PM250 Power Module
Hardware Installation Manual, 09/2012, A5E01003502B AD
21
Air cooling requirements
Table 3- 1 Air cooling requirements for operation with rated power (LO)
Frame size HO power rating Required cooling air flow
C 5.5 kW ... 11 kW 38 l/s 80 CFM
18.5 kW ... 22 kW 22 l/s 47 CFM D
30 kW 39 l/s 83 CFM
30 kW 22 l/s 47 CFM E
37 kW 39 l/s 83 CFM
45 kW ... 55 kW 94 l/s 200 CFM F
75 kW 117 l/s 250 CFM
Table 3- 2 Power losses of Power Module components in Watt
For Power Module
Power losses of … FSC FSD FSE FSF
Power Module 240 … 400 440 … 720 1000 … 1300 1500 … 2400
Control Unit <40
Line filter class B 7.5 … 15 -
Output reactor 60 200 200 … 270 500
Sine-wave filter 120 … 200 235 … 190 305 350 … 575
The power losses of the line filter are valid for the following operating conditions:
● Rated input current
● 50 Hz line frequency
The power losses of Power Module, output reactor and sine-wave filter are valid for the
following operating conditions:
● Rated output current
● 50 Hz output frequency
● 4 kHz pulse frequency)
Further information is given in the technical data.
Siemens Parts
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