How to wire motor plug

[jinsingh]

Im really really surprised and very pleased with all the time and help you have all given me. I really appreciate all your replies.

This may be a stupid question, but if we assume the cable could be wired to an American 4 Pin plug, could it be wired the same way on a UK plug but ignoring the green (ground)??

@Megawatt @Spoon @westward10 @James the Spark1976 @Strima

 

[Megawatt]

Im really really surprised and very pleased with all the time and help you have all given me. I really appreciate all your replies.

This may be a stupid question, but if we assume the cable could be wired to an American 4 Pin plug, could it be wired the same way on a UK plug but ignoring the green (ground)??

@Megawatt @Spoon @westward10 @James the Spark1976 @Strima

Yes the 4th wire as y’all know is just an equipment ground the 3 prong is the same as my stove. It’s 220vac single phase and the neutral is mainly for the clock and timer. I’m trying to research it for gingsing

 

[Spoon]

May also be worth it to try and find out what frequency this has been manufactured for. 50Hz, 60Hz or both?

 

[Megawatt]

Yes the 4th wire as y’all know is just an equipment ground the 3 prong is the same as my stove. It’s 220vac single phase and the neutral is mainly for the clock and timer. I’m trying to research it for gingsing

It also could be 220vac with no neutral the 3rd wire being the ground

 

[Megawatt]

It also could be 220vac with no neutral the 3rd wire being the ground

My experience with 50hz really has no effect with the exception of clocks and timers

 

[Spoon]

My experience with 50hz really has no effect with the exception of clocks and timers

I was thinking more the affect on the motor.
It may not be an issue, just run faster or slower..

 

[Megawatt]

I was thinking more the affect on the motor.
It may not be an issue, just run faster or slower..

Spoon I’ve never checked the motors with a RPM gage

 

[Megawatt]

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.

Jinsingh do you have a brand name and model number

 

[jinsingh]

Jinsingh do you have a brand name and model number

Hi Megawatt

I only have the image and details from the advert. It was purchased via Aliexpress which is a Chinese wholesale website.

 

[westward10]

If possible can you remove the motor terminal cover and show the connections within.

 

[Spoon]

Hi Megawatt

I only have the image and details from the advert. It was purchased via Aliexpress which is a Chinese wholesale website.

Where did you get the pic of the 4 wires? (Your original pic). That doesn't look like it's from an advert.

 

[GeorgeCooke]

It looks like a US dual phase lead, (what they call 3 wire) though the yellow wire should be white and should not be connected anyway.

 

[Megawatt]

Hi Megawatt

I only have the image and details from the advert. It was purchased via Aliexpress which is a Chinese wholesale website.

Thanks jingsing I’ll see what I can come with and advise you

 

[jinsingh]

If possible can you remove the motor terminal cover and show the connections within.

Hi will try and open motor and take some photos

 

[jinsingh]

Where did you get the pic of the 4 wires? (Your original pic). That doesn't look like it's from an advert.

Sorry I searched that from the Internet

 

[Lucien Nunes]

This may be a stupid question, but if we assume the cable could be wired to an American 4 Pin plug, could it be wired the same way on a UK plug but ignoring the green (ground)??

No, we don't use that type of power in the UK, it's specifically N. American. I think the references to US power configs here are misleading, there's no reason to think your machine is wired that way. The Chinese 3-phase colours are red/yellow/green which matches your cable (although I think neutral is more often blue now). I suspect one of two things:

a) they sent you a 3-phase machine instead of the single-phase one you ordered.

b) they converted it to single-phase but left the 3-phase mains cable attached.

Either way, they shouldn't sell equipment in the UK with that cable.

We need to see:
1) Motor rating plate
2) Inside motor terminal box
3) Where the cable terminates inside.

 

[jinsingh]

Hi everyone

I am really grateful for all your time and help. Please find attached photos of the motor, wiring, and back of the machine.

Hope it make sense to you guys.

 

[westward10]

I assume the flex terminates elsewhere.

 

[Megawatt]

I assume the flex terminates elsewhere.

It’s not 3 phase or the third pole has no jumper and the yellow makes since it has a capacitor in it

 

[westward10]

Agreed the capacitors weren't clear from the first pic. Cap start and run.