Recent content by jjgrant

Thanks Guys, I think the answer is replacing my 32amp MCB with a 30m/a RCDO 40amp single module. The cable is 6mm, so with this setup I can install a 8.5kw shower no problem and it will be safe. With the RCDO does it just click in the same slot on the CU as the MCB? and wires in the same?

The shower is currently wired to a wall switch before it gets to the CU unit, what your saying is the RCD unit sits between that switch and the CU unit? Just need to be clear about this. Would you normally mount the RCD next to the CU?

Cheers, the manufacturer does say use a 30ma RCD. The one I am looking at is the mira sprt 7.5kw. So I need to get a RCD installed, does this mean that the wiring going into the CU at the moment for the shower (which is on its own fuse) gets removed and wired in this seperate unit?

Thanks for all your comments, its a fairly old house but the hoiuse was re wired, there is only one consumer unit with a seperate 30 amp fuse for the existing shower that has failed. I am 99% sure the cable is 6mm as well. The shower I was thinking about installaing (7.5 kw) said you also need...

I currently have a very dated electric shower that has just died. I am looking to replace it. The current setup is wired with 6mm Cable back to a 30amp fuse at the consumer unit. There is also a power swich on the wall. I would like to replace it with a 7.5kw Shower, from my own research...