Earthing Setup: South Africa
Hi, I have a 8KVA SunSynk with a new DB board.
What is the correct way to wire the earth cables?

Does the Grid supply earth cable go to the Earth plate (Red Arrow)? The earth cable from the battery also go the the Earth plate? I assume all earth cables need to be connected together.
Is the left hand side input of the Grid input used in South Africa? Is anything connected to it or to the Grid-N (Blue Arrow) screw connector? Why is it called Grid-N and not maybe Grid-Earth?
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Thank you. Yes, I connected all the earths together and the system is working properly.