RCD wiring

Johan · 2005-04-16T15:09:49+00:00

My recent question about problems with my boiler got very knowledgeable replies (problem now sorted). So now I have another question (google doesn't get me a clear answer):I have bought a Wylex 63A 30mA RCD fom Screwfix (wylex shower unit, product code 90026) to use for my new electric shower. It is not clear to me how to wire this thing. It sits in its own box, and I imagined I would put it close to the consumer unit, in the 10mm cable coming from the CU and going to the shower.The RCD has 4 connectors, one marked L at the top left hand side, the others unmarked. The enclosed leaflet says 'The incoming cables to the RCD may be taken either to the top or the bottom set of terminals, dependent entirely on the ease of wiring the device'.That could be read to mean that only 2 out of 4 terminals are used (that must surely be wrong). As it has 4 terminals, I guess the live in and out go to the one marked 'L' and the one below that, the neutrals go to the other 2. What happens to the earth? Do I connect that using a connector block?Hope all this makes sense,Johan

Apr 16, 2005 20 Replies

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bigcat 21 years ago

ok, have it your way.

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RCD wiring

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