How to wire motor plug

[jinsingh]

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.

 

[Strima]

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]

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?

 

[netblindpaul]

If this was bought in the UK, the law states it must come with a fitted plug.

 

[jinsingh]

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

Hello thank you so much for replying, please find attached images of the machine and some specs, please not its a 220v machine.

 

[jinsingh]

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.

 

[jinsingh]

I think the cable expects an American 4 pin plug??

 

[Strima]

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.

 

[GeorgeCooke]

Wrong voltage, no plug, reject it. Simples.

 

[jinsingh]

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.

 

[westward10]

Can you show the motor rating plate.

 

[Spoon]

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.


This might give us more info.

 

[Spoon]

Take some pics of what you actually have rather then from a brochure.

 

[jinsingh]

View attachment 51369

View attachment 51370

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.
View attachment 51371

This might give us more info.

Hi there I did pay for the 220v motor version. The problem is there is no plate or info anywhere on the machine.

 

[westward10]

Just wondering if that motor is three phase, 380v in star and 220v in delta. Your motor maybe pre wired for 220v delta, possibly.

 

[Spoon]

Looks like the only thing you can do is get inside the machine and see where the four wires wire to.

 

[James]

If you are still unsure, I am in brownhills on Monday and in the jewellery quarter on Tuesday and Wednesday
I will be able to either make it work or tell you what’s wrong with the specification.

 

[westward10]

The motor doesn't show a capacitor but could be split phase (single phase) but I suspect it is three phase and there is no reason for it to be reversible. The image of the machine does show a two position switch so maybe reverse capability is built into it.

 

[Megawatt]

Hi there I did pay for the 220v motor version. The problem is there is no plate or info anywhere on the machine.

Hi there I did pay for the 220v motor version. The problem is there is no plate or info anywhere on the machine.

Jingling these guys are good at what they do hang in there and they will get it ru

 

[Spoon]

Jingling these guys are good at what they do hang in there and they will get it ru

Did you have a power cut mate...