fuse mod which disconnects neutral

[spidersparks]

Evening guys, I got a job at the moment that requires a bit of scheming, I have some gas fired fan heaters that need to have a permanent supply for the fan inside them so they don't over heat etc, they then switch on from a control wire simple stuff, what I need to do is have a local isolator for each one but the the permanent live can not be turned off unless it's being serviced and this is in a public place where people fiddle with things! What I'm after doing is to put in a single mod plate in with a double poled isolator for switching just the control wire only and I'm sure I've seen these and this is what I need help with locating, a fuse carrier which when the carrier is removed it disconnects the neural as well as removing the fuse, now I'm hoping I haven't dreamed these up and making a plonker of my self but if someone has seen one and can point me in the right direction appreciation and plaudits shall be received
Many thanks in advance
David

 

[Marvo]

Can't you just install an isolator that can be locked in the 'on' position as well as off?

 

[guest119]

Rotary isolator for instance Marvo.
One with sufficient number of poles to kill the supply and control circuit?

boydy

 

[Richard Burns]

If you are trying to fit a mechanism in a single gang plate then you could fit a double pole key switch for maintenance (though they are not isolators afaik) and a single pole switch for the control wire. If you need something fused then use a triple gang single plate and add a fuse carrier.

 

[Amp David]

Click do an DP switch which has a lock on them