Electrical connection
6.3 Connecting the grounding conductor
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Operating Instructions, 06/2020, A5E44455710A
79
6.3.2
Grounding connection type
Type of enclosure grounding
Conductor cross-
section
mm²
Connection of an individual conductor under the
external grounding bracket.
… 10
Connection is made using a DIN cable lug
under the external grounding bracket. DIN 46
234
… 25
Internal ground terminal
When making connections, ensure the following:
●
Ensure that the connecting surface is bare and is protected against corrosion using a
suitable substance, e.g. acid-free Vaseline.
●
Arrange the flat washer and spring washer under the bolt head.
●
Locate the cable lug under the clamping bracket.
●
Use the terminals designated for the grounding conductor in the terminal box.
●
Observe the tightening torque (Page 162) for the locking screw.
External ground terminal
When making connections, ensure the following:
●
Ensure that the connecting surface is bare and is protected against corrosion using a
suitable substance, e.g. acid-free Vaseline.
●
Position the cable lug between the contact bracket and the grounding bracket; do not
remove the contact bracket pressed into the enclosure!
●
Arrange the flat washer and spring washer under the bolt head.
●
Use the marked connection location for the grounding conductor on the stator housing.
●
Observe the tightening torque (Page 162) for the locking screw.