October 5, 20251 yr Does anyone @ProDave @Onoff see anything wrong with this consumer unit. Ignore the odd wire exiting, just the fuses...
October 5, 20251 yr You have a space for a new MBC. My charger has a C80 but I imagine it depends on the charger spec.
October 5, 20251 yr Other than it's "old"? Are they Wylex NSB** breakers? If so they're obsolete. Looks like you have half the circuits on the main switch and half on the RCD. However...if a NSB range C40 RCBO would do for your EV charger I may have one here. I have a bnib old stock CU. Think I've a B32 RCBO too...again new... Is that SWA in a regular stuffing gland?
October 5, 20251 yr You could just slide the RCD over and that would get you front of house earth protection for every circuit. I thoroughly dislike split load boards.
October 5, 20251 yr 1 hour ago, Nickfromwales said: You could just slide the RCD over and that would get you front of house earth protection for every circuit. I thoroughly dislike split load boards. Or drop in some RCBOs to keep the lights on when the washing machine etc dies 😉
October 5, 20251 yr 1 hour ago, Onoff said: Or drop in some RCBOs to keep the lights on when the washing machine etc dies 😉 OP can change to 'all RCD' without spending any money on bits. RCBO CU is obvs the best possible solution, but then you need a new metalclad CU and a load of paperwork to go with it.
October 5, 20251 yr 3 hours ago, Nickfromwales said: You could just slide the RCD over and that would get you front of house earth protection for every circuit. I thoroughly dislike split load boards. Do that with that Type AC RCD and he won’t be fitting an EV charger to it though. You need Type A or ‘better’ RCD protection to fit an EV charger. It also needs to be double pole/switched neutral, which rules out the kind offer of the C40 RCBO above, which is only single pole, albeit Type A. Nothing necessarily wrong with that board. Swap out the RCD for a Type A and fit some Type A RCBO’s in place of the unprotected MCB’s and it’ll be fine. If you go to that extent though, you’re most of the way to a new board. If I was asked to fit an EV charger there on a budget I’d be fitting a 100A Type A RCD in place of the existing and an MCB for the charger. I can’t recall off the top of my head if the Wylex switched neutral RCBO’s fit that particular board - they keep changing them and they’re not always backwards compatible, it’s a bloody pain.
October 5, 20251 yr 1 minute ago, Mattg4321 said: Do that with that Type AC RCD and he won’t be fitting an EV charger to it though. You need Type A or ‘better’ RCD protection to fit an EV charger. It also needs to be double pole/switched neutral, which rules out the kind offer of the C40 RCBO above, which is only single pole, albeit Type A. Nothing necessarily wrong with that board. Swap out the RCD for a Type A and fit some Type A RCBO’s in place of the unprotected MCB’s and it’ll be fine. If you go to that extent though, you’re most of the way to a new board. If I was asked to fit an EV charger there on a budget I’d be fitting a 100A Type A RCD in place of the existing and an MCB for the charger. I can’t recall off the top of my head if the Wylex switched neutral RCBO’s fit that particular board - they keep changing them and they’re not always backwards compatible, it’s a bloody pain. Yea, at that point I'd just replace the CU, and enjoy a bit of future-proofing.
January 16Jan 16 Installed today. At the house I have a dedicated 60A switch fuse with a 100mA Type S RCD. After the incoming 100A fuse it's split via Henleys then to the house cu and the switch fuse. From the switch fuse a 16mm² SWA goes to the new garage consumer unit. For the EV point I have a 40A, C curve, 30mA, double pole, bidirectional, RCBO. The EV point is fed from there via a 10mm² SWA. Set up means the garage circuits are all on 30mA RCBOs.
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