Fuse Dilemma

[John Rumm]

Here is what you need with loop in wiring:

That can all be done from a ceiling rose with one additional terminal required:

[Fredxx]

I don't know of any British Standard or other requirement but it is common for a winding to have some internal thermal protection. It only takes a shorted turn or similar failure for the device to overheat and melt a housing, yet not draw sufficient current for a fuse to blow.

I'm therefore sceptical of the enhanced safety using a 3 Amp fuse in the OP's example as opposed to a 5 or 6 Amp MCB.

I am aware of the control circuitry for a fan with an internal timer, using discrete ICs and thyristor, but I still don't see the advantage.

[Chris Green]

They're not **that** difficult to find. I have a load of 2 amp ones which were a bit of a nuisance to be honest because they were the only ones I could find that fitted into the CU on my boat. I kept tripping them when I tried to run the vacuum cleaner or an electric heater on those circuits. I have since replaced them with more suitable ratings (it wasn't totally trivial because they were two pole breakers that disconnect both live and neutral).

[SH]

One coould in fact use a 3 terminal wago connector provided there was room in the ceiling rose..

Or alternatively, use a round dry lining box behind the exisiting rose for more room/

[Animal]

fusing the neutral would get round that :) (don't)