noel said:
Help Somebody,
I wish to install an isolator switch for my bathroom extractor fan. Should it be a double pole switch, 3 pole switch,
That depends on whether your fan has just a switched live and neutral supply, or a permanent live as well. Does it run on for a while after it's switched off?
How much do you know about fan circuits and electrical wiring in general?
10 amps,20 amps etc,etc pls help
Nothing like that - does the fan not have any info on it to say what rating it is?
Just get a 3-pole fan isolation switch.