Shouldn't be hard to find, I hear you say....
Briefly, I need a metal CU with 4 ways (i.e. RCD plus 2 MCBs), and with
2 20mm KOs on the bottom.So far I've managed to buy
I've got 2 SWA cables which used to attach to my old fusebox - one for garage, one for shed. I replaced the fusebox with a plastic CU - carefully chosen to fit the space available - but with no space to get the SWA cables in. Also, the SWA is 2 core, and I couldn't figure out how to attach an earth wire to the banjo tags.
So the plan is: Run 6mm from main CU to the metal one on a 32A MCB, non-RCD side. (Yes, I could use 4mm, but I have loads of 6mm) Put 2*20AMCBs in the metal CU, plus an RCD. 2.5mm SWA will carry 20A. In the garage, load is a 15A circuit for sockets, and a 15A circuit for lights - yes, they wired the lights circuit in 2.5mm. So max load of
16A. Therefore 2.5mm SWA is OK. Shed is identical to garage, neither have any need for bonding (so SWA armour as cpc is okay). Neither cable run is >5m, so no problems with voltage drop.Ben