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When did type A RCD's become a requirement for EV chargers

Alan B

I am just looking at a potential EV charger installation for a house that has supposedly been prewired for an E charger but it's protected by a type AC RCCB. Then to make things worse it's in an easy 9 consumer unit and the only type A RCCB they have is only rated at 63A, the ev charger is sharing the RCCB with two other 32A circuits plus 4 others. I don't have any space for extra devices and will need to put an extra consumer unit in.

I am wondering if the install ever complied with the regulations. Looking at regulation 722.531.2.101 it's in the first 18th edition but i don't know if ev charging was even in any of the 17th editions?

Also quite shocking that I can't get a 100A type A RCCB from Schneider for the easy 9. 

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  • 0

    Looking at it from a manufacturers point of view the market for 100 amp RCDs is very limited.

    Mainland Europe doesn’t have single phase domestic installations with 100 amp supplies and there’s not actually a huge number in the UK with the majority being fused at 60 amps.

    Until we were told we cannot allow diversity when rating RCDs nobody worried anyway.

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  • 0

    Looking at it from a manufacturers point of view the market for 100 amp RCDs is very limited.

    Mainland Europe doesn’t have single phase domestic installations with 100 amp supplies and there’s not actually a huge number in the UK with the majority being fused at 60 amps.

    Until we were told we cannot allow diversity when rating RCDs nobody worried anyway.

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  • 0 in reply to Sparkingchip

    I can see where you are coming from. Interesting that from what you believe most UK supplies are fused at 60A. It must vary a lot by area. In the last year I have pulled probably 60 fuses, something like 70% have been 100 amp and the rest 80A. Most of this has been in relation to EV charge points, so no flats and typically larger and newer houses which I am sure skews the numbers.

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