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Wiring an inline fan timer
Posted: Wed Jan 25, 2023 11:14 pm
by 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?
Re: Wiring an inline fan timer
Posted: Wed Jan 25, 2023 11:56 pm
by Mr White
Use a 3 core and earth for all the connections, not twin and earth.
Re: Wiring an inline fan timer
Posted: Thu Jan 26, 2023 11:47 am
by 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.