Scenario is intake in a store room: the other part of the building, which forms the front boundary of the plot, is the garage.
25 mm2 SWA supplies the house, which is at the back of the plot, and the intention is to protect it with an 80 A switch fuse in the hope that it will provide a measure of discrimination should a fault occur in the house (max 32 A MCB). Clearly there is plenty of choice here.
One option for supplying the garage is to put its CU adjacent to the intake and connect the tails to it (via Henley blocks) but Sir would prefer to have it in the garage itself. The distance back to the intake is unlikely to be less than 3 m, which rules out the possibility of putting the tails through the internal wall.
So if the CU is to be in a separate room, it seems that a second switch fuse is required. It would be so much neater if there could be one device with one switch and two (or more) fuses. I cannot find one, but does such a beast exist please?
