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Discuss How to wire motor plug in the Electrical Wiring, Theories and Regulations area at ElectriciansForums.net

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Hi everyone

I purchased a bench polisher which looks to have come from China. It says its 220v single phase and should work fine in the UK. The power cable has 4 wires in it so I'm confused how to wire a standard UK plug. I have attached a photo of the cable.

Any advice would be much appreciated.
 

Attachments

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Strima

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Arms
Esteemed
Looks like a forward and reverse switch is required. What do the manufacturers instructions say? Do you have a web link for this machine?
 

Spoon

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Mentor
Arms
Esteemed
Welcome to the forum mate.
The motor should have a information plate on it, with the spec of the motor. Take a pic and post it up. Post a pic of the motor as well. Are there any controls with the motor?
 
  • Thread Starter Thread Starter
  • #6
Welcome to the forum mate.
The motor should have a information plate on it, with the spec of the motor. Take a pic and post it up. Post a pic of the motor as well. Are there any controls with the motor?
Hi thanks for replying, ive attached images of the machine. The machine is a 220v machine and is supposed to be single phase. It didnt come with a plug, the power cable has 4 wires which is confusing me.
 

Strima

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Arms
Esteemed
That's a surface grinder not a polisher so you won't be getting many shiny things from that...

You need a motor reverse switch installing. Something like: Motor Reversing Switch single or 3 phase 25, 32 or 63amp 4 Pole Lathe car lift | eBay - https://www.ebay.co.uk/itm/Motor-Reversing-Switch-single-or-3-phase-25-32-or-63amp-4-Pole-Lathe-car-lift/331117252512?hash=item4d18204fa0:m:mwsgmUcdOA3BgKppYa0rovQ&var=540332832124

Ideally you need someone experienced with motor controls to install this for you.
 
  • Thread Starter Thread Starter
  • #10
That's a surface grinder not a polisher so you won't be getting many shiny things from that...

Ideally you need someone experienced with motor controls to install this for you.
H Strima thanks again for replying, I was wondering does it really need a motor reverse switch as it has a FORWARD/REVERSE switch already at the front of the machine.
 

Spoon

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Mentor
Arms
Esteemed
1565988548724.png

1565988601923.png

It seems to state the motor needs 380V. You will only get this if the machine has something like an inverter in it.

Can you take a pic of the plate on the motor.
1565988759738.png

This might give us more info.
 

Spoon

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Mentor
Arms
Esteemed
Take some pics of what you actually have rather then from a brochure.
 
Just wondering if that motor is three phase, 380v in star and 220v in delta. Your motor maybe pre wired for 220v delta, possibly.
 
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