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Old 07-28-2006, 10:38 PM
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houlibar houlibar is offline
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Join Date: Jul 2005
Location: SoCal, most advanced third world country
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Question Help me Wire a Full KVA Adapter Plug

I need to make an adapter plug so I can run a plasma cutter off of an engine drive. The engine drive has the 240V 4 prong NEMA 14-50R receptacle and the plasma has the 3 prong NEMA 6-50R plug. I'm going to try and get the parts from the hardware store tomorrow. Do I just wire it POS, NEG, GRND and leave off the NEUTRAL? The ground is the half-round pin on the 4 prong outlet, correct? So the half-round pin on the 4 prong gets wired to the round pin on the 3 prong?
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