Quote for work needed for EV charger

24 Nov 2007
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Near Lincoln
United Kingdom
I need an EV charger fitted and need some work done to make it viable. I have a detached garage with it's own consumer unit run from the house consumer unit as per the photo's. I've had a quote for the work which includes the following:
1. Move garage supply on to 40a mcb feed to the none RCD side of house fuse board.

2. Remove all mcbs from garage fuse board and replace with rcbos with 1 new 32a mcb for EV charger.

3. Certification for garage feed and garage fuse board with new rcbos.

I have priced the RCBO's myself and they are not that expensive unless I'm looking at the wrong ones but the quote is £374 + VAT, before I go getting more quotes I'm just wondering what the electricians on here would be quoting for that kind of work please?


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It doesn’t seem unreasonable for that work with its safety implications. Would it be better vfm to get a single quote for all the work?

A circuit for a 32A/7.5kW EV charger should really have a 40A MCB. manufacturers' instructions for many EV chargers specify this. It's not a good ideas to run an MCB at full specified current for long periods.
The cost seems entirely reasonable.
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It's not unusual for even professional electricians to refer to CU's as fuse boards, the older customer often understands the term better.

Just to confuse things there's a company called Fusebox that produces 18th edition consumer units.

An EV charger can have loss of PEN detection, 6 mA DC detection and a RCD type A built in, or it can required the protection external, so cost to fit a supply to an EV charging point will depend on charging point used, but figure quoted seems reasonable.
You are gonna need 4 or 5 rcbos, crabtree are around £25 or 30 each. So thats up to £150 in parts there straight away.
Within reason, you will get what you paid for.

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