I have a 240V four-wire cord that I want to put a three-wire plug outlet on. What two wires do I twist together? - Quora
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UL Listed NEMA 6-20R Female Electrical Outlet Drop Cord Extension Cord Ends Replacement 20 Amp 220 240 250 Volt 2 Pole 3 Wire Grounding Commercial Grade Receptacles Connector 2-Pack - Amazon.com
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