Check the listing for details. 50A 250V NEMA 14-50P to 50A 250V NEMA 10-50R Welder Adapter by AC WORKS®. Color: Orange, Condition: New. Listed at 29.97 USD. Looking for a durable and compact welder adapter? Look no further than the AC WORKS® brand WD14501050 adapter! This adapter features a NEMA 14-50P 50 Amp, 250 Volt, 4-prong male plug and a NEMA 10-50R 50 Amp, 250 Volt, 3-prong outlet female connector, making it perfect for adapting your welder connections. Made with heavy-duty materials, and featuring nickel-plated plugs and terminals to prevent rusting, this adapter is built to last. The adapter has a maximum operational power of 12500W. Plus, it comes backed by a 5-year limited warranty. If you would like a copy of the warranty information, simply send us a message, and we will be happy to supply it to you. We love hearing about the different ways our adapters and cords are being used, so please consider leaving a review and letting us know what equipment or appliance you powered with our product. Thank you for choosing AC Connectors! NEMA Configuration Sketch Common Name Amperage Rating Voltage Rating Male Plug NEMA 14-50P 4-Prong Range Plug 50 Amps 125/250 Volts Female Connector NEMA 10-50R Old Style Welder Connector 50 Amps 250 Volts Works With This Outlet Works With This Plug