Art
I have a PT250EX,PT255EXT,MTS250S, i-Mig 250 and a PP70S all connected to 40A 240V circuit breaker switch and it has never popped but at know time is there two machines running at the same time. I would ask a electrician if it is OK, mine just said it should work if I don't push the machine to its maximum duty cycle, so far all is well.
Welcome to the forum Art.