Appleton Electric offers an extensive catalogue of receptacles designed to connect an electrical device to a power supply. These receptacles feature lockout provision to provide equipment with a total lockout / tagout system for preventing accidental machine startups. They meet NEMA 3, 3R, 4 and 4X requirements with plug fully inserted or cover closed with wing nuts fully tightened. These receptacles are equipped with an interlocked circuit breaker to offer short circuit and thermal time delay overload protection and neoprene bushing to prevent the entry of water. They have brass contacts which exert constant pressure across the entire contact surface and provide superior electrical contact. Choose from a wide range of Appleton Electric receptacles, available in 20, 60 and 100 A designs on Raptor Supplies.