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BS60947-3 Fused main switch, top or bottom feed?

Sparkingchip
Which way around should a Fuse Main Switch be wired, in at the top or the bottom?


Does it matter?


Andy Betteridge
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  • 0
    Chris Pearson:
    Sparkingchip:

    Fuse holder not isolated if fed from below?


    That will be the case one way or the other. I am surprised if the terminals are not marked.




    They are marked, I got one out of the back of my van and had a look at the instructions and the switch itself. This is one of those things I should know, as I have fitted a fair few over the years.


    When connected correctly, bottom in, the fuse holder is isolated unlike when the meter tails are taken into the top.


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  • 0
    Chris Pearson:
    Sparkingchip:

    Fuse holder not isolated if fed from below?


    That will be the case one way or the other. I am surprised if the terminals are not marked.




    They are marked, I got one out of the back of my van and had a look at the instructions and the switch itself. This is one of those things I should know, as I have fitted a fair few over the years.


    When connected correctly, bottom in, the fuse holder is isolated unlike when the meter tails are taken into the top.


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