Double pole and triple pole

[frediaz]

What is the practical difference between double pole and triple pole switches?. My question relates to toilet and bathroom fans switching. I hear that you need a triple pole switch for fans like these but the instruction sheet of the fan I bought says it needs a double pole fused spur, is it the same as using a double pole fused switch? The contacts on my fan are: Neutral, Switched live and Permanent live.

This fan can be connected to either a pullcord or a light switch. Does anybody know if there are wiring diagrams for fans in this site?

Ta

 

[RF Lighting]

The Isolator is to isolate all live conductors to the fan.


If the fan does not have a timer over-run then a DP switch is fine as it will isolate both the live conductors (live and neutral)


If the fan does have a timer over run then you must use a TP isolator to isolate three live conductors (permanant live, switched live and neutral)


There are diagrams in the FAQ / wiki

 

[frediaz]

Is it the same case for fans connected to lights and separately?