Connecting The Grounding Conductor; General Information On Connecting The Grounding Conductor - Siemens SIMOTICS SD Operating Instructions Manual

Recommended connection variants
①
②
③
If air gaps ≥ 5.5 mm (up to 690 V) are observed between non-insulated components, you can also use
alternative connection elements without insulating sleeve, for example cable lugs acc. to DIN 46234 .
6.4

Connecting the grounding conductor

6.4.1

General information on connecting the grounding conductor

Note
The machine's grounding conductor cross-section must comply with EN / IEC 60034-1.
Please also observe installation regulations such as those specified in EN / IEC 60204-1.
Basically, there are two ways of connecting a grounding conductor to the machine.
● Internal grounding with a connection in terminal box at the location intended for this
● External grounding with connection at the stator housing at the locations intended for this
Low-voltage motors
Operating Instructions, 05/2014, 5 610 00000 02 000
Cable lugs DIN 46237 with insulating sleeve (round and open)
Rigid cable (insulation removed at ends ≤ 8 mm)
End sleeves DIN 46228 ≤ 8 mm
purpose and marked accordingly.
purpose and marked accordingly.
Electrical connection
6.4 Connecting the grounding conductor
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