How to save money on costly rcbo's

Discuss How to save money on costly rcbo's in the UK Electrical Forum area at ElectriciansForums.net

Bellendian said:
I'd wager the rings were put on b20's due to reference method 101, that basically means you'd need to do an rfc in 4mm if you used a 32a breaker. I'd also bet that they'll never trip on overload unless the boiler breaks and someone buys 10 fan heaters!
Personally I'd prefer to fit a Hager high integrity board rather than a cheapo rcbo board.
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