AWG Grounding wire size

[cmarazzi (Carlo Marazzi)]

I can’t find in the manual of the Quattro 120V 10K what is the recommended wire size for the grounding wires.

I am also assuming that in a fixed installation with AC-IN1 has a Generator, AC-IN2 has the GRID, and the AC-OUT-1 has the house load that:

1. PE-IN1 and should come from the same ground at the Generator, which is the same as the PE-IN-2.
2. That PE-OUT should be connected to a separate ground bar?
3. Chassis ground is not needed if PE-IN-1 and PE-IN-2 are wired?

Please someone confirm the size of the wires and to where they should be connected.

[lxonline (LX)]

The earth connections are all common. You can buzz it out with continuity on a meter to check.

Usual rule of thumb we use is the same size as live conductor so it can carry the whole fault current back.
But local regulations also come into play here, so those are followed otherwise.

Couple of good sections to read in wiring unlimited.

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