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  1. S

    Contactor wiring with Nest thermostat

    It's a bit rough and ready but you can see from the image I have a 230v call for heat going into A1, nothing into A2 (which is confusing me how the coil will work with only one side of it being connected), then perm live and neutral into 1,3, switched live and neutral coming out of 2,4 which...
  2. COMBi~2.PNG

    COMBi~2.PNG

    • steve1906
    • Media item
    • Comments: 0
    • Category: Professional Electrician
  3. S

    Contactor wiring with Nest thermostat

    Contactors are new to me and I'm treating it as a relay in principle but what you're saying suggests I just need to energise one side and that will work? So I'd have perm live and neutral one side, switched on the other, then say call for heat on A1 which would be the mains voltage call from the...
  4. S

    Contactor wiring with Nest thermostat

    Hello, I'm trying to get a contactor to work with a nest thermostat to activate an oil filled heater rather than a boiler. I wired permanent live and neutral to the two poles at the top of the connector (1+3), switched outputs to the bottom (2+4) then the common and demand lines from nest to...

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