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Extractor fans that do not require a 3 amp fuse ?

aligarjon

Hi guys.  i am struggling to source a bathroom  extractor fan with a short spigot that doesn't require a 3 amp fuse. Most of them seem very long to what they used to be which is a right pain sometimes. I only have 90mm to play with for the spigot and the existing only has a 3 pole isolator but no fuse. It would be a nightmare to alter as all the wiring is at the light switch and there is no access from above to try and alter it.  I usually use Vortice as they don't require the fuse but can't find one with a short enough spigot. I seem to remember there was another brand that didn't but can't remember what it is if anyone knows ? The fan is for a shower room ceiling although it is out of zones due to height .

Cheers

Gary

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  • 0

    Would a combined 3 pole isolator with integral fuseholder be of any use to you - swap out the existing one?

    www.toolstation.com/.../p19707

  • 0 in reply to whjohnson

    Thanks for the reply. I have managed to find something suitable.  A Greenwood Unity CV2GIP smart timer with humidistat if anyone else in the same boat.   cheers

  • 0 in reply to whjohnson

    a combined 3 pole isolator with integral fuseholder

    Would such a device comply with BS 7671? I'm guessing the fuse is in just one of the L poles, leaving the other protected by the upstream lighting MCB. By BS 7671 definitions, the 3A fuse, being an overcurrent protective device, creates a new circuit, so we now have two distinct circuits but both sharing the same neutral - a contravention of 314.4. Granted most of the physical reasons for not borrowing a neutral probably don't apply in this particular circumstance, but I think it would still be tricky to be able to sign off as compliant.

      - Andy.

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  • 0 in reply to whjohnson

    a combined 3 pole isolator with integral fuseholder

    Would such a device comply with BS 7671? I'm guessing the fuse is in just one of the L poles, leaving the other protected by the upstream lighting MCB. By BS 7671 definitions, the 3A fuse, being an overcurrent protective device, creates a new circuit, so we now have two distinct circuits but both sharing the same neutral - a contravention of 314.4. Granted most of the physical reasons for not borrowing a neutral probably don't apply in this particular circumstance, but I think it would still be tricky to be able to sign off as compliant.

      - Andy.

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