3phase breaker to single phase breaker

[Johnhau]

Is there a simple way to install single phase breaker in a 3 phase box so I can run my welder off the cabinet which is 3 phase ?

 

[donkey]

hey John. am guessing au means your aussie. being aussie means you are limited to what you can do as per our legal system requires a qualified electrician to do work on all mains. I can't think of any way to do this project without the use of items like this http://www.phasechanger.com/
best of luck though