There needs to be a continuous thread on this. A lot of misunderstanding. This is a start. Seems to be confusion on cord sizing. Basically all 240V machines come cord and plug come 6-50. They need to be designed to be able to safely plug in to a common 50A welder circuit. The 240 only,,, not the dvi9 come 12 cord or better. The owners manuals are very confusing to someone not been schooled on it and the new imports even more so as they dont come with a guide, they seem to leave it to the installer to extrapolate the required wire size.