ELCB or RCD for instant tankless shower water heaters? | on ElectriciansForums

Discuss ELCB or RCD for instant tankless shower water heaters? in the UK Electrical Forum area at ElectriciansForums.net

Libra4

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Some electric tankless shower water heaters have inbuilt ELCB. Are they better than Triton water heaters which don't have it ? and does Triton tankless water heaters have any inbuilt security? Or an external RCD is better ?
 
I would say an external RCD is better as it protects the cable as well, so insulation damage to the cable leading to a shock risk, or maybe fire risk, have a chance also of tripping the RCD.

For UK regulations these days all circuits to a shower/bathroom need to be RCD protected for that sort of reason.
 

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