50A Extension Cable: Current: 50AMP, Voltage: 110V, Power: 12500W. This 50A power cord is pure copper wires. It has 6/3+ 8/1 (3 wires at 6 AWG, 1 wire at 8 AWG) cable, which is heavy-duty. Note: For indoor use only. 25FT Power Cord: The 25FT length generator cord is suitable for long-distance operation. Possessing the capacity of STW, this 50 amp generator cord can be used indoors and outdoors in all weather and seasons. Sturdy & Reliable Cable: Our cable is rated STW (service grade, thermoplastic, and outdoor rated) to resist wetness and sunlight. Utilize cord in temperatures ranging from -40 °F to 140 °F, so it is flexible enough to be managed. Portable Grip & Strap: The ergonomic grip makes it easier for you to plug and unplug. The plastic strap makes the cord neat when not in use. This generator wire is perfect for emergency generator connection to help power the entire home, office, shop, etc