Kitchen Fan isolator?

alex kane · Nov 30, 2016

Hello all

I am currently re wiring a flat which has a damp problem in the kitchen at the rear. I will be installing a 6" extractor fan with a pull cord on it to help reduce the damp. The fan will be supplied from the lighting circuit. I am aware that you need a 3 pole isolator when it comes to bathroom fans (even though I've never read the reg myself). Will I need an isolator for the kitchen fan as well?

Wes1000 · Nov 30, 2016

Can you not just use a double pole pull cord or does it have an over run needing line and switched line? In fact you could put a 3 pole pull switch in if that was the case but I think they are chunky square things

Richard Burns · Nov 30, 2016

If there is no timer overrun then you would only need a DP isolator and even that could be single pole in a kitchen, just use a DPSFCU or DP switch.

buzzlightyear · Nov 30, 2016

would it be better to run the fan off a non switch /spur to the fan form the lighting circuit .
having a pull cord on the fan, has the fan got auto shut off on the fan.

alex kane · Nov 30, 2016

When I say it will have a pull cord I mean it one which will be attached to the fan. This won't isolate the fan for maintenance/ if there's a fault. I think a Switched fused spur above the countertop would be the best option. That would also remove an ugly pull cord!

buzzlightyear · Nov 30, 2016

by having a non switched or switch f/spur next to the fan for maintenance their will be a fuse for that by taking it out, weather it is near the counter top or not .

mydigitalhome · Nov 30, 2016

Suggest read the manf. Instructions normally fans without timer are down rated to 1A or 3A and proper isolation is required. Refer to Guidance Notes and BS7671