Hi guys,
I've just bought a machine that works on three phase 220v. Can someone help me wire it to 220v single phase? I'm confused with the heating elements. How can I make them work on a single phase? Based in UK.

Attached electric diagram.

Thanks.

 

If three phase 220v is between phases I would wire the 3 heaters in parallel to the 220v single phase.

 

What is the wattage of each bank!?
You will need to feed from a supply capable of all three.
Max.

 

Hi casteels, hi Max,
Thank you for your replies.
First, want you to know I'm not an expert, but I'm trying to understand electricity.

The machine is rated 6.2 kW and it only has a small 0.2 kW motor controlled by the inverter. So each heating element should have 2 kW.

This parallel connection will be enough?

 

You will need a 30amp supply.
Max.

 

You will need a 30amp supply.
Max.

I have 2x 30 amp RCD in my workshop fuse box, so I'll use one for this machine.
Do you think the connection in the diagram attached is ok, or there's a better solution?

Thanks.

 

I would make use of the contactor and the fuses for the 3 elements.
Also if you can use the existing internal conductors.
IOW, parallel up, up to the contactor input.
Max.

 

I would make use of the contactor and the fuses for the 3 elements.
Also if you can use the existing internal conductors.
IOW, parallel up, up to the contactor input.
Max.

That's the best I can understand. Hope is right
I'll use L3 for heater N because is thicker and I think is better not to use the machine neutral wire.

Thank you for your time.

 

As long as the N is sized for the 30amps.
Max.

 

Hi guys,
It worked. The machine works great.
Thank you very much for your time.
Thanks Max. You are the best.