Wiring an inline fan timer Ask questions and find answers to many subjects relating to electrics and electrical work

[Gavski1]

Heres my wiring for my inline fan with timer - it's on a fused spur with a 3 pole isolator - I use a 3 core from fan to isolator and a 2 core from isolator to fuse. How do I deal with the Switched live between the isolator to the switch terminal? can I get a single core electric cable? - my other solution is to have the fuse before the junction box making the fan and light a fused circut - would that be ok?

[Mr White]

Use a 3 core and earth for all the connections, not twin and earth.

[ericmark]

The wires in most fans are thinner than the wire in even a 1 amp fuse, so a FCU only protects the cable, if supplied from the ring final it is required, but from lighting the whole lighting is normally supplied from a 6 amp supply as ceiling roses only rated at 6 amp, and the MCB/RCBO is faster acting than even a 1 amp fuse, so pointless having a FCU when supplied from lights.

Yes I know it often says protect to 3 amp, but this is really pointless when supplied from lighting. The 3 amp fuse will never blow unless your still using a fuse box, with 5 amp fuses.