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Single Pole Isolation.

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Does anyone actually use single pole isolation main switches in single phase TN-S or TN-C-S installations, (or just line switching in  three phase installations) where main bonding is correctly installed?

Think of the cost saving? 461.2.

Z.

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    I think that you would be hard pressed to find a SP main switch, but perhaps you are thinking of older installations and EICRs? In any event, main switches are cheap as chips, so not much of a cost saving.

    We may need SPSN main switches, but we seem to be happy with SP switching for the circuits.

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    I think that you would be hard pressed to find a SP main switch, but perhaps you are thinking of older installations and EICRs? In any event, main switches are cheap as chips, so not much of a cost saving.

    We may need SPSN main switches, but we seem to be happy with SP switching for the circuits.

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