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All I wished to know is whether or not anyone knows where I can find a suitable plug in MCB. Personal (and they are personal) opinions do not matter to me and I do not wish to know anything else as I am quite aware of the risks. Just as a note, my CU is RCD protected and rated at 100 Amps...

Most important, the cable that you use must be rated (equal to or) greater than the fuse so that the fuse will trip safely without overloading the cable, (6 mm2 to be safe with a 32 Amp MCB), you can get 32 Amp plug-in Wylex MCB's as a sound replacment to re-wireable fuses.

I would just like to say to unphased_spark and ban-all-sheds that I posted this topic for people who haven't been labotomized to help me out! If you haven't got anything constructive to say, don't bother saying anything at all please and don't try to suggest that I need a new consumer unit. I...

I'm sorry Plugwash, but this is poo poo, even B-type MCB's take more than 3 times there rated current to blow, this is probably 150 amp+ in a shower unit, I think 150 amps would definatley hurt most of us. I do however find it hard to believe the guy didn't have a pre-consumer unit RCD...

does anyone know where I can get a >40 Amp PLUG-IN B-type MCB (for a shower), it must be plug-in type as i can't be arsed replacing my whole consumer unit Cheers Lads and Lasses. :lol: :lol:

paspatout, I have had this problem myself, it might be the vacuum sensor which detects whether the drum is full/empty (just a suggestion).