Thanks John, sounds as if it would be cheaper to get a new duel consumer unit then,
Regards
Mini1961
duel rcd units are only 100 to buy, would it not be cheaper
Cheaper, maybe ..... better, no chance.
No, that part is covered by the RCD part of the RCBO. It may also be covered by the mcb part of the RCBO, but even if it was, the RCD part of the RCBO would disconnect in 40ms (assuming a fault and not leakage), whereas the mcb side would disconnect in 100ms. The RCD side can not cover line-neutral fault currents i.e. short circuit.Should that not be line to cpc impedance, Zs?
Can this be updated to the 17th edition i,e, duel rcd,
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