The 50A 125/250V CS6364 4-Prong Locking Female Connector Assembly by AC WORKS® is a heavy-duty electrical plug designed for use in both indoor and outdoor environments. It features a locking design for secure connection, chemical resistance, weather resistance, and impact resistance. The plug is UL certified and has a maximum compatible appliance wattage of 12500W. With a 1-year manufacturer warranty, this electrical plug is suitable for various applications requiring a 50A input current and 125/250V voltage rating.