ups socket
i have added a ups socket to a installation through a earth neutral relay, but when the grid power gets switched off the rcd within the socket trips is this normal and does it have to be a rcd socket?
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Does the socket trip without anything plugged into it? It may be the RCD socket is designed to trip if there is an interruption to the supply. There will be a drop as the relay in the inverter switches over from the grid.