NEMA 15-50 Power Cords | 50 Amp Industrial Generator Cord | 4-Wire Welder Power Cable UL Listed

NEMA 15-50 Power Supply Cords 50 Amp 250V The NEMA 15-50 power cords are robust, industrial-grade electrical cable engineered for three-phase high-power applications, such as kilns, heavy machinery, generators, and commercial equipment. It features a 4-wire NEMA 15-50P straight-blade plug (three hot wires and a ground, no neutral) for secure connection to a matching NEMA 15-50R receptacle, delivering up to 12,500 watts at 250V AC in a 3-phase configuration. This setup is ideal for balanced three-phase power distribution, ensuring efficient operation in demanding environments. Available in lengths from 3FT to 100FT (custom options prevalent), it is UL-listed for safety and often uses flexible STW-jacketed cable for durability in industrial or outdoor settings. Technical Information Plug Type: NEMA 15-50P (4-wire: 3 Hot, Ground; 3-phase) Electrical Ratings:250 Volts AC (3-phase) 50 Amp Receptacle Required: NEMA 15-50R Safety Certification: UL Listed, cUL Colors: Black, Yellow, Custom color Operating Temperature: -40°F to 194°F (suitable for harsh conditions) Applicable Cables: 4 conductors: Black/Red Hots, White Neutral, Green Ground Cable Length Options: 6FT, 10FT, 25FT, 50FT (custom up to 100FT) LA009D 6/3 8/1 STW, SOW 45/250 XH211 6/3 8/1 ST, STW, STO, STOW, STOO, STOOW 50/250 Common Applications Three-phase kilns and ceramic ovens (e.g., Easy-Fire models). Industrial generators, welders, and plasma cutters in fabrication shops. Heavy motors, pumps, or compressors in manufacturing and HVAC systems. Commercial backup power extensions or temporary 3-phase setups on job sites. Benefits High-Efficiency Operation: Three-phase design minimizes power loss and heat buildup, enabling consistent performance for energy-intensive tasks like kiln firing or generator backups. Code-Compliant Reliability: UL and CSA listings ensure it meets stringent safety standards, facilitating inspections in commercial or industrial facilities. Versatile Longevity: Weatherproof materials extend cord life in variable conditions, reducing downtime and maintenance costs compared to standard cords. Scalable for Pros: Handles 50A loads without voltage drop over moderate distances, supporting scalable setups from small shops to large manufacturing lines. Eco and Safety Focus: RoHS/REACH compliance limits hazardous materials; grounding reduces shock risks in high-voltage 3-phase systems. Installation Notes Verify the receptacle is a NEMA 15-50R rated for 50A/250V 3-phase; incompatible with single-phase outlets. Connect wires: Three hots (black/red/blue) to X/Y/Z terminals, green to ground screw—use torque specs from equipment manual. Apply strain relief at both ends to secure against movement or vibration. De-energize the circuit at the breaker before installation; hire a qualified electrician for 3-phase wiring to ensure phase balance. Limit total length to avoid excessive voltage drop (e.g., under 100FT with 6 AWG); test for continuity post-install. NEMA 15-50 Power Cord Manufacturer CablesGo manufactures industrial-grade NEMA 15-50 power cords, engineered with a 50 Amp, 250V, 4-wire configuration to deliver robust three-phase power for demanding applications such as industrial kilns, heavy machinery, and three-phase generators. Produced in our certified 30,000 sqm Ningbo facility, each unit undergoes rigorous 100% in-house Hi-Pot and continuity testing to ensure full compliance with UL standards. We offer flexible customization of cord length and jacket color with a competitive 50-piece MOQ, supported by global operations that guarantee reliable 10-15 day lead times and cost-effective pricing.