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Motor + NVR switch earthing

  • 15-10-2012 02:34PM
    #1
    ziggyson
    Registered Users, Registered Users 2 Posts: 2 ✭


    I'd like to wire a motor via an NVR switch. The NVR switch has only live and neutral terminals, i.e. no earth, and the casing is plastic. Should the earth from the power plug be carried through the NVR somehow to the motor (2HP, single phase, ~9amp)?

    thanks for your help
    ziggy
    Tagged:


Comments

  • #2
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,687 Mod ✭✭✭✭2011


    ziggyson wrote: »
    I'd like to wire a motor via an NVR switch. The NVR switch has only live and neutral terminals, i.e. no earth, and the casing is plastic. Should the earth from the power plug be carried through the NVR somehow to the motor (2HP, single phase, ~9amp)?

    thanks for your help
    ziggy

    Yes. Unless the motor is double insulated it must have a CPC.


  • #3
    Bruthal
    Closed Accounts Posts: 13,370 ✭✭✭✭Bruthal


    ziggyson wrote: »
    I'd like to wire a motor via an NVR switch. The NVR switch has only live and neutral terminals, i.e. no earth, and the casing is plastic. Should the earth from the power plug be carried through the NVR somehow to the motor (2HP, single phase, ~9amp)?

    thanks for your help
    ziggy

    If there is no earth terminal in at the nvr terminals and the motor needs an earth, then put a single connector from a strip of connectors inside the nvr case, and connect the earth from the supply to the earth out to the motor with that connector.


  • #4
    2011
    Moderators, Home & Garden Moderators, Technology & Internet Moderators, Regional East Moderators Posts: 12,687 Mod ✭✭✭✭2011


    +1


  • #5
    ziggyson
    Registered Users, Registered Users 2 Posts: 2 ✭ziggyson


    Thanks very much for the quick responses, that makes sense.

    thanks again
    ziggy


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