Some appliances can be configured to run from 1-Phase or 3-Phase supply. Looks like the motor inside the unit is 3 phase motor obviously but can be configured to run on single phase. Just follow the wiring diagram.

I'm just curious why the 3 phase wire colors are not standard

My bad. It is the color used in UK and EU. I thought it is white but more like gray.

This post has been edited by Zot: Oct 6 2023, 08:33 AM

Yes. Combine all Live wire together in this case according to diagram.

It is quite common for coffee maker. I read that one user did it that way. Two L wire will negate their phase and one of the wire will spin motor.

Look like the heater is 4.3kW. Just make sure you connect directly to 20A MCB, not the 13A socket there. I see you have your double pole switch already.

You cannot just connect just one of the L wire to run on single phase. It won't work that way. If the machine has no other alternative but must run on 3 phase, then you can buy a phase converter like this (just one example)

https://shopee.com.my/220-V-Single-phase-In...3b-cad01fb92ed5