Not sure where to post this but I've rented a shop so I can stay out if the weather while working and it has single phase and 3 phase only down fall is I don't have enough room to install a double post breaker to run my mig welder. The 3 phase doesn't power anythang anymore. I was told I could wire into a 3 phase breaker using 2 hots and a ground I was told the 3 phase isn't 480 but I'm no electrician.