Motor + NVR switch earthing

ziggyson

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

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.

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.

2011

+1

ziggyson

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

thanks again
ziggy