Siemens PM250 - Page 35

Connecting
4.5 Motor cable length and cross section
PM250 Power Module
Hardware Installation Manual, 09/2012, A5E01003502B AD
35
Table 4- 4 Cable cross section
Frame size Cable cross section Tightening torques
kW mm
2
AWG Nm lbf in
FSC
5.5: 4.0 … 10 12 … 8 2.3 20
7.5: 4.0 … 10 12 … 8 2.3 20
11: 6.0 … 10 10 … 8 2.3 20
FSD
15: 10 … 35 7 … 2 6 53
18.5: 10 … 35 7 … 2 6 53
22: 16 … 35 5 … 2 6 53
FSE
30: 25 … 35 3 … 2 6 53
37: 25 … 35 3 … 2 6 53
FSF
45: 35 … 120 2 … 4/0 13 115
55: 70 … 120 2/0 … 4/0 13 115
75: 95 … 120 3/0 … 4/0 13 115
CAUTION
Cable cross section for grounding
For power cables up to 10 mm² (Cu) or 16 mm² (Al) the earth cable must be at least as big
as the power cables.
For power cables larger than 10 mm² (Cu) or 16 mm² (Al) the earth cable must be at least
10 mm² (Cu) or 16 mm² (Al), but need not exceed these sizes.
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