Started with three employees, and has now evolved into a global powerhouse. Employing many people headquartered in Raleigh, NC. Ironbox has transformed from a single cord company to now offering adiverse range of power solutions designed to resolve complicated power needs.

The IronBox Electrics NEMA L14-20 Extension Power Cord provides 20 Amp, 125/250V power for both indoor and outdoor use. Perfect for emergencies or generators, it's made in the USA with durable, weather-proof components and built to handle tough conditions with ease.

Connector TypeExtension Power CordVolts and Ampere20 Amps, 125/250 VoltsLength10 - 100 FeetConnector GenderMale-to-FemaleUnique FeatureHeavy Duty, UL-ListedUsesPowering Generators, Outdoor Equipment, and Emergency Setups 1NEMA L14-20 Power Cord2Heavy Duty 12/4 SJOOW 3Indoor & Outdoor Use4Twist Lock Mechanism5Perfect for Data Centers

Built with rugged materials, this power cord can handle tough conditions and heavy-duty usage.

Designed for maximum power delivery, this cord supports 20 Amps at 125/250V for reliable performance.

Featuring a twist-lock mechanism, this cord ensures a secure, stable connection, preventing accidental disconnections during use.

Each cord is rigorously tested to meet strict standards for safety, ensuring dependable performance.

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How did we get our start?

Heavy Duty Design

Rated for 20 Amps and 125/250V

Twist Lock Mechanism

Quality Tested

Extension Power Cord