Siemens SINAMICS G120 - Protective Conductor

4.4.4 Protective conductor
WARNING
Electric shock due to interrupted protective conductor
The drive components conduct a high leakage current via the protective conductor. Touching
conductive parts when the protective conductor is interrupted can result in death or serious
injury.
● Dimension the protective conductor as stipulated in the appropriate regulations.
Dimensioning the protective conductor
Observe the local regulations for protective conductors subject to an increased leakage current
at the site of operation.
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① Protective conductor for line feeder cables
② Protective conductor for inverter line feeder cables
③ Protective conductor between PE and the control cabinet
④ Protective conductor for motor feeder cables
Figure 4-9 Protective conductors for inverters with IP20 degree of protection
Installing
4.4 Connecting the line supply and motor
Converter with the CU230P-2 Control Units
Operating Instructions, 09/2017, FW V4.7 SP9, A5E34257946B AE 87