RCCB fitting ( newbie post)

I have been an electrician for 35 plus years, I have never heard of this term RCCB. You aint from the US are you.... ?

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The message source indicates that it was posted from the U.K.

Regards, Sean

Why assume that he is from the US? There is life outside the US you know!

RCCB = Residual Current Circuit Breaker

Fads

That's about the measure of it, but in the majority of cases the neutral "comes out" of a neutral block in the consumer unit, not the MCB.

Although you can get SPSN (Single Pole Switched Neutral) consumer units. In this instance the neutral would be connected in the MCB, these SPSN consumer units are rare in the UK and are mainly installed in local authority dwellings.

Some manufacturers use electronics in the RCCB, these types can have a small flying lead usually coloured white that should be connected to earth.

You could always use a RCBO which is a combined MCB/RCCB in one unit.

If in doubt get an NICEIC approved contractor to do the work.

Hope that helps

Fads

Thanks, the neutral does indeed come out of a neutral block on the consumer unit.

I said he was not from the US. I was trying to learn something. Thanks

I would suggest getting a 80 amp 30ma rcd and fit it to the supply side of your fuseboard then all the circuits would be protected by the rcd (only try this if you can isolate the supply first via a double pole switch ) Addie from Cornwall

Protecting your whole installation with a single 30mA RCD is contrary to the Wiring Regs (but sadly all too common).

US = GFCI UK = RCD (Residual current device)

betcha .. RCCB is Residual current circuit breaker

Den A Brit in Calif