Permissible Line Supplies; Protective Conductor - Siemens SINAMICS G120 Hardware Installation Manual

Connecting

5.1 Permissible line supplies

5.1 Permissible line supplies
The Power Modules have built-in filters and can therefore only be operated on TN line
systems with a grounded neutral point.
Operating the Power Modules without protective grounding is not permitted under any
circumstances.
5.2

Protective conductor

Danger to life caused by high leakage currents when the protective conductor is interrupted
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.
• Lay the protective conductor as specified.
Dimensioning the protective conductor
● In a multi-core cable, the protective conductor has a cross-section ≥ 2.5 mm² Cu.
● Observe the local regulations for protective conductors subject to an increased leakage
current at the site of operation.
– In IEC areas, observe IEC 60264-5-54, Table 52.2.
– In the USA, observe the NFPA 70 NEC Specifications, Article 250, Table 250.122, and
32
WARNING
in Canada, the CEC Canadian Electrical Code specifications.
Hardware Installation Manual, 12/2016, A5E35319202B AB
PM230 Power Module, IP55