DIY Doctor

CONSUMER UNIT

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Postby DEAN WHITTINGTON » Mon Sep 28, 2009 3:30 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.
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Postby kbrownie » Mon Sep 28, 2009 6:36 pm

what are you doing with the neutrals?
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Postby sparx » Mon Sep 28, 2009 7:37 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.
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Postby DEAN WHITTINGTON » Wed Sep 30, 2009 7:55 am

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