Universal Compatibility: 50 ft welder cord fits most 30Amp 3 prong welders on the market; The 10 gauge welding power cord is rated 250Volt, 7500Watts, NEMA 6-50p to NEMA 6-50r, ETL Listed. Durable and Flexible: Outdoor black welding cord remains flexible and convenient to use at -40°C, suitable for indoor and outdoor; Pure copper wiring tested for continuity and conductivity ensuring maximum performance and reliability Always fully uncoil the extension cord during use and do not pile it up.