Extractor Fan Switch.

geoffsd:

Then why would you need a three pole switch?

So that you may isolate the fan separately from the lighting. Oh, I nearly forgot: 'cos the manufacturer says so. I must say, though, that the fuse seems unnecessary.

geoffsd:

Then why would you need a three pole switch?

So that you may isolate the fan separately from the lighting. Oh, I nearly forgot: 'cos the manufacturer says so. I must say, though, that the fuse seems unnecessary.