TN-C-S grid configuration

Qualified person

If the neutral conductor has to be opened during backup operation, the automatic transfer switching device is ready for use without any additional configuration of the pre-installed cables.
If the neutral conductor needs to remain connected in backup operation, the automatic transfer switching device must be configured as described below.

Procedure:

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  1. Remove the cables at the INV N, LOAD N and GRID N connections of the automatic transfer switching device.
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  2. Use a previously removed cable to establish a connection between the LOAD N and GRID N connections of the automatic transfer switching device.
    Overview of the Connection Area
    Connecting the connections to the automatic transfer switching device