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Shower circuit design.

Sparkingchip

Why would an electrician install a 10 mm twin and earth circuit protected by a B32 MCB for a 8.5 kW shower?

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    Surely the breaker is protecting the cable, not the load. By that logic it should have a 37A breaker then to protect the shower? If the cable is big enough to take 45A then it could have a 5w LED lamp on the end and still be ok

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    Surely the breaker is protecting the cable, not the load. By that logic it should have a 37A breaker then to protect the shower? If the cable is big enough to take 45A then it could have a 5w LED lamp on the end and still be ok

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