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    phils928's Avatar
    phils928 Posts: 2, Reputation: 1
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    #1

    Mar 2, 2009, 03:36 PM
    What is a bipolar cut off device ?
    Hi to install my new smeg plate warmer the instructions say it is necessary to provide a bipolar cut off device in the power supply circuit where the opening of the contacts is more than 3mm. What is this device where can I get one in the UK and approx how much will it cost also the item says it should have a 10A fuse where do I get one of these? Many thanks Phil...
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #2

    Mar 2, 2009, 07:27 PM

    I wonder if they meant "Bi Metalic", like the round disc on water heaters, and used in thermostats, or these:
    Bimetallic Thermostat,Adjustable Bimetallic Thermostat,Bimetal Disc,Bimetal Disc Thermostat,India
    phils928's Avatar
    phils928 Posts: 2, Reputation: 1
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    #3

    Mar 3, 2009, 12:34 AM

    I am sceptical that it would require something so unusual as this would make installation quite difficult and am now wondering if they meant a RCD dual pole socket
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
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    #4

    Mar 3, 2009, 05:58 AM
    It sounds like a mechanical relay with an opening of more than 3 mm when the contacts are open. I'm thinking that "bipolar" means both legs of the circuit -- line and neutral.

    10 amp fuses and holders are available everywhere.
    Stratmando's Avatar
    Stratmando Posts: 11,188, Reputation: 508
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    #5

    Mar 3, 2009, 06:46 AM

    Found this:
    Smeg CT15NE2 Built In Black plate warmer
    I wonder now if it also means a 2 pole breaker. If so, they could have said a 10 Amp bipolar device? Good Luck
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