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I opened my DB to recheck the size of my existing shower cable and I noticed that my 30 A downstairs ring-main breaker has three red 2.5mm cores connected into it. Also the insulation has started to become dicoloured on one of the cores and the terminal screw on the breaker is also discoloured...

Hello all, i've replaced the shower + cabling in my house and i'm looking to uprate my MCB accordingly. I have an old MK board with Sentry MCB's and I need a 40 or 45 amp MCB to replace the old 30 amp. The board is marked up as MK LN 5612 - 12 module. The breakers are rail mounted and the...

Hello all, just a quick question. I am planning to upgrade my shower to a 10.8 kw unit and upgrade my wiring to 10mm twin and earth. (usual run in a standard terraced house). I'll need to replace my old 30 amp MK mcb with an uprated unit but the only ones I can get from my local retailers...