HEAVY DUTY / MADE IN USA- Featuring an L5-30P Plug to an L14-30R Connector. Rated for 30 Amps and 125/250V. All custom built Iron Box Power cords are built in Raleigh, NC. HIGHEST QUALITY COMPONENTS – this custom plug adapter allows you to convert a NEMA L5-30 receptacle to a 30amp L14-30P rated for 30A 125/250V powering your essential items. EMERGENCY READY – Equipped with superior weather-proofing, you can count on reliable 30 amp power flow, especially in those ”extreme” situations. Compatible with any device equipped with an L5-30 receptacle. INDOOR AND OUTDOOR – Made for various uses both indoor and outdoor these cords are built on heavy duty 10/4 SOOW wire capable of being buried directly in the ground. THE WORLDS LEADING POWER CORD SUPPLIER - Iron Box manufactures UL listed power cords with only the best components and wire. Power cable for use in 3500W generators that feature an L5-30 style receptacle. Rated for 30 Amps, and 125/250V. Very flexible outdoor rated rubber power cable. UL File # E364972