Siemens SINAMICS S120 Manual page 103

Cable routing for connecting to the supply infeed
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Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A
Route the cable for the infeed into the cabinet from the bottom.
Connect the PE cable to the grounding bar.
Route the cable up through the cabinet to the line connections -X1 (-U1/-L1, -V1/-L2, -W1/-L3).
Fasten the cable at suitable points.
Connect the cable to the connections.
Electrical installation
4.5 Connections
101