Looking for RCBO's

kogsawelly

Hi Guys
Looking for some RCBO's for a Wylex NHRS6604 consumer unit.
They all seem to be £20.00 plus!
Does anyone know of a good value supplier?
thanks

weekendwarrior

£20 is very cheap for an RCBO, unless you mean a MCB?

kogsawelly

Thanks for the reply weekendwarrior.
I do mean RCBO's
MCB, i can get for around £6.00 each
I'm having an extension built and need these fitted in place of
some of the MCB's in my consumer unit for building regs approval to part P.
I think this is going to work out rather expensive!
thanks

Incisor

kogsawelly wrote: »

Thanks for the reply weekendwarrior.
I do mean RCBO's
MCB, i can get for around £6.00 each
I'm having an extension built and need these fitted in place of
some of the MCB's in my consumer unit for building regs approval to part P.
I think this is going to work out rather expensive!
thanks

I'm really out of date with wiring practice, but you might want to check this out. You definitely want overcurrent protection on individual circuits, hence MCB's, however for Residual Current protection on all circuits, 1 RCBO may be sufficient for the whole consumer unit, provided it is wired to protect all circuits.

kogsawelly

Hi Incisor
I understand the new 17th Edition regs now require all the circuits to have RCD protection.
I have a split load consumer unit, where i can get away with some circuits covered by 1 RCD and individual MCB's.
However to reduce the chance of nuisance tripping, the other circuits will need seperate RCD/MCB protection. This is why i need the RCBO's.
Thanks

Incisor

kogsawelly wrote: »

Hi Incisor
I understand the new 17th Edition regs now require all the circuits to have RCD protection.
I have a split load consumer unit, where i can get away with some circuits covered by 1 RCD and individual MCB's.
However to reduce the chance of nuisance tripping, the other circuits will need seperate RCD/MCB protection. This is why i need the RCBO's.
Thanks

It won't reduce the risk, just the extent of affected circuits. I would just cut an RCD into the feed of the whole consumer unit and be done with it.

kogsawelly

Hi Incisor
Yeah, i wish i could just use 1 RCD for all the circuits.
Although i don't fancy the lights tripping, when i'm in the shower!
Anyway, the Building control chap from the council won't see it like this when they do a final site inspection.
If i want that completion certificate then i need to follow the rules!
thanks.

weekendwarrior

The 17th edition rules do not come into effect until July and the regs are not retrospective.

The last time I looked at an RCBO it was £45 for my particular consumer unit.

ukwoody

£23 + vat from TLC Direct.

woody

baldelectrician

You can get split RCD consumer units (rcd each side) plus a main switch.

The 17th came out in January.
This is the transition period - you can work to either 16th or 17th, but not both, until July 1st. From Jult 1st NEW work must be designed to 17th

Work designed previously to 16th will be about for a while yet

In domestic situations I would suggest people work to 17th from now, as the cost isn't that bad