DIY Doctor UK DIY Forums

Posted: **Mon Sep 28, 2009 4:30 pm**

I HAVE A DUAL RCD CONSUMER UNIT WITH 1 X 80A (30MA) AND 1 X 63A (30MA) RCD'S
I CAN PUT 2 X 40A SHOWER MCB'S PLUS A 32A MAINS CCT MCB ON THE 80A RCD BUT IF I TRANSFER ANY OF THEM TO THE 63A RCD THEY TRIP BOTH THE RCDS .
THE ONLY MCB'S I CAN USE ON THE 63A RCB ARE THE 6A LIGHT CTTS

WHAT AM I DOING WRONG.

Posted: **Mon Sep 28, 2009 7:36 pm**

what are you doing with the neutrals?

Posted: **Mon Sep 28, 2009 8:37 pm**

hi ,not transfering the neutrals to the correct half?
you have 2 neutral bars & whichever rcd you put a circuit L in the corresponding neutral MUST go on the same N side.

Posted: **Wed Sep 30, 2009 8:55 am**

THANKS FOR YOUR GREAT HELP AND QUICK REPLIES
PROBLEM FIXED IN TEN MINUETS
THANK AGAIN

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