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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

Parents
  • 0

    No fans actually require a 3A fuse. Fuses etc. are to protect the cable.

    If you actually want a fan where the manufacturer does not wrongly tell you you need a fuse, then buy one in Europe.

Reply
  • 0

    No fans actually require a 3A fuse. Fuses etc. are to protect the cable.

    If you actually want a fan where the manufacturer does not wrongly tell you you need a fuse, then buy one in Europe.

Children
  • 0 in reply to geoffsd

    Indeed, a B6 mcb will pop a lot sooner than a 3A fuse will.

  • 0 in reply to whjohnson

    Fuses etc. are to protect the cable.

    So what protects the internals of the appliance? What's to stop the manufacturer specifying that the installer provide something on the supply side instead of having an extra protective device internally? (as seems to be the case here, and appears to be permitted by the equipment standards)

    Indeed, a B6 mcb will pop a lot sooner than a 3A fuse will.

    Not if the fault current is limited (e.g. due to a short between turns of a motor winding) - at 5A or 6A for example the 3A fuse will go far sooner.

      - Andy.

  • 0 in reply to AJJewsbury
    AJJewsbury said:
    So what protects the internals of the appliance?

    A device fitted internally by the manufacturer as they do when necessary.

    AJJewsbury said:
    What's to stop the manufacturer specifying that the installer provide something on the supply side instead of having an extra protective device internally?

    Why should that be considered acceptable?

    Are you suggesting that, for example, fan manufacturers make their products less safe for the UK than they do for places where such fuses are not available and the item would be on a 16A circuit?

  • 0 in reply to geoffsd

    Are you suggesting that, for example, fan manufacturers make their products less safe for the UK than they do for places where such fuses are not available and the item would be on a 16A circuit?

    I'm not sure they do go on 16A circuits on the continent - the French diagrams I've seen always put them on a separate C2 MCB.

       - Andy.

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