Hi I have a 220 volt welder that has a 3 prong "dryer" plug, I need to wire it to a 4 prong locking NEMA plug that goes into a generator. What I got so far was the 2 prongs go to the 2 120 volt outputs. It does not matter which goes to which even though the dryer plug's prongs are a different size?
Also, the pin of the dryer plug is that supposed to be connected to the Neutral or the Ground of the 4 prong locker?
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is a pic of the connectors.