Bathroom fan - switched FCU or 'Fan Isolating Switch'?

[nick99]

I have a new VentAxia 100 fan (non-timed) to install in a loo. My Collins book says it should be off an FCU. I intend to give the fan its own switch outside the door, which is supported by the wiring diagram with the fan.

My question; when I went to get the switched FCU to install between the fan and the switch I noticed a '3 pole Fan Isolating Switch'. The fan requires no earth. I vaguely remember seeing one of these fan switches in a friends new flat. What is the advantage over a FCU?

 

[fattony]

Fireman will probably say a 'secret key switch'. No offence fireman

 

[Adam_151]

I have a new VentAxia 100 fan (non-timed) to install in a loo. My Collins book says it should be off an FCU. I intend to give the fan its own switch outside the door, which is supported by the wiring diagram with the fan.

My question; when I went to get the switched FCU to install between the fan and the switch I noticed a '3 pole Fan Isolating Switch'. The fan requires no earth. I vaguely remember seeing one of these fan switches in a friends new flat. What is the advantage over a FCU?

If its not a timed fan, then you'll only have two conductors to isolate (so you don't *need* the triple pole fan isolator), does your fan say you need to fuse dwn to say 3A, if so, use switched FCU, if not feel free to jus use a DP switch (or even 3 polefan isolator if you wish because its got the correct legends on it)

 

[Lectrician]

I dont see a TP isolator as a functional switch - they are too clumbsy and clunky.

As its only a Loo - how about putting the switch soewhere more appropriate.......like adjacent the fan......use an FCU.

 

[nick99]

does your fan say you need to fuse dwn to say 3A, if so, use switched FCU, if not feel free to jus use a DP switch (or even 3 polefan isolator if you wish because its got the correct legends on it)

It says "wiring should be via a double pole isolating switch...the fuse rating should be 1amp (UK)."

So I guess a switched FCU is the way to go. To me adding the FCU (with the fuse) into the equation *seems* safer than simply one of those big switches. Or am I just being dumb?