Quote Originally Posted by performance View Post
IF the correct plug is used, then it will be obvious, since the 6-50 is the only standard plug for single phase 220V welders and cutting equipment. The camper won't plug in.
This may have been the case previously, but a 'standard' is not a rule, & with the emergence of multi-voltage welders/cutters this 'standard' is disappearing.
The Miller Dynasty 200DX's we have on the job are voltage sensing from 110v to 220v & as so are equipped with a neutral (4 wires out of the machine). We wire the machine with a 30amp 4 pronged plug & then run adapters for the 220v-30amp/110v-20amp outlets we may encounter when moving from area to area.