50 Amp Welder Adapter Cord, NEMA 14-50P to NEMA 6-50R Extension Cord For Welder Generator
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The Portvoi 50 Amp Welder Adapter Cord makes it easy to power your welding machine from a standard RV or generator outlet. It converts a 4-prong NEMA 14-50P plug to a 3-prong NEMA 6-50R receptacle, perfect for welders and other 220/240V tools.
Made with heavy-duty 8 AWG copper wire and a durable STW jacket, this 1.5FT cord supports up to 250V and 12,500W. It’s ETL Listed for safety and reliability.
Compact and easy to use, the adapter features an ergonomic handle for safe plugging/unplugging and a bright color for visibility. Ideal for RV parks, generators, and job sites.
- 50 Amp Welder Power Adapter: Convert 50 Amp 4 Prong RV or generator outlet to 3-prong welder socket with this 1.5FT NEMA 14-50P to 6-50R adapter cord. Rated for 250V and up to 12,500 watts, this 250V power cord delivers reliable, high-output power to welding machines and other compatible equipment.
- Durable STW 8AWG Construction: Made with flame-retardant, weather-resistant STW 8 AWG 100% copper wires, the heavy-duty 3-wire construction ensures safe and efficient power transmission, minimizing heat buildup even under long working hours.
- ETL Listed & Safe: Tested and certified to meet ETL safety standards. The molded ends and strain relief connectors provide secure fits, reducing the risk of sparks, overheating, or accidental disconnection during operation.
- Compact & Ergonomic Design: At only 1.5 feet, the compact design is easy to store and ideal for direct plug-and-play. Features an ergonomic grip handle for safe and easy plugging/unplugging, even in tight spaces.
- Versatile Compatibility: Perfect for welders, EV chargers, and other 220/240V tools requiring a NEMA 6-50 input. Easily connects to RV parks, generators, or dryer outlets equipped with a NEMA 14-50 receptacle—no rewiring or outlet swap needed.
The Portvoi NEMA 14-50P to 6-50R Adapter Cord is a compact, heavy-duty solution for welders, EV users, and generator owners who need a secure and reliable power connection. This 1.5FT adapter converts a 4-prong 50 Amp RV/generator outlet (NEMA 14-50P) into a 3-prong welder socket (NEMA 6-50R), enabling safe power transfer for 220V/240V equipment. Built with rugged STW 8 AWG copper wire and a flame-retardant outer jacket, it supports up to 12,500 watts and is ETL Listed for assured safety. Whether you're on a job site, in the garage, or using a portable generator, this adapter delivers clean, dependable power in a compact form.
- Product Name
- NEMA 14-50P to NEMA 6-50R Welder Adapter Cord
- Input Plug Type
- NEMA 14-50P (4-prong, 125/250V, 50 Amp)
- Output Receptacle Type
- 1× NEMA 6-50R (3-prong, 250V, 50 Amp)
- Rated Current / Voltage
- 50 Amps / 250 Volts, up to 12,500 Watts
- Wire Gauge
- 100% pure copper, 8 AWG STW (heavy-duty)
- Length
- 1.5 Feet
- Material
- Flame-retardant, UV-resistant PVC jacket; molded plugs; copper wiring
- Application
- Welding machines, EV chargers, 240V equipment, generator power transfer
- Operating Environment
- Indoor / Outdoor (garage, RV park, worksite, generator area)
Returns Policy
You may return most new, unopened items within 90 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to US only.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that we provide free shipping in USA