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I haven't wired a contactor before (this is a 2-pole Square D CCN225) and would appreciate any views and advice on the following: I have a 5.5KW heater that I'd like to control via a timer. I'm proposing to use a standard plug in timer to power the coil on the contactor (I'm assuming A1 is...

We're converting our garage which is about 50% underground (we're built into a slope). I noticed that there is moisture in the cavity (checking for insulation found droplets of water on the polystyrene beads). Buiding Regs have suggested a vapour barrier attached to inside wall then build a...

I'm having a new consumer unit wired in to replace a dated fused type. The current set up has a standalone RCD unit (rated 100mA) between the supply and the unit. The electrician is simply going to swap out the unit with a new split unit. This means that the circuits not RCD protected by the new...