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Extractor Fan Switch.

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I have just stumbled upon this. A fan isolator switch with integral fuse. Has anybody any experiences with these please. Any good?

https://www.ebay.co.uk/itm/254946038011?hash=item3b5bf7d0fb:g:kr8AAOSwPSxbVK~m


Z.
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    Some people use a three pole fan isolator switch and connect it to the permanent L, switched L and N. As B.S. 7671 defines a neutral conductor as contributing to the transmission of electrical energy it is a live conductor and has to be isolated if "mechanical maintenance " or electrical maintenance is being carried out. Others say that the N does not have to be disconnected from the appliance.


    Table 537.4 allows a switched fused connection unit which is double pole switched to be used as an isolator. It also allows a non switched fused connection unit to be used as an isolator, but that will only disconnect the L pole when the fuse is removed.


    Z.
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  • 0
    Some people use a three pole fan isolator switch and connect it to the permanent L, switched L and N. As B.S. 7671 defines a neutral conductor as contributing to the transmission of electrical energy it is a live conductor and has to be isolated if "mechanical maintenance " or electrical maintenance is being carried out. Others say that the N does not have to be disconnected from the appliance.


    Table 537.4 allows a switched fused connection unit which is double pole switched to be used as an isolator. It also allows a non switched fused connection unit to be used as an isolator, but that will only disconnect the L pole when the fuse is removed.


    Z.
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