Watertight Locking Connector, Connection Orientation Straight, Current Rating 30 A, Housing Color Yellow, Housing Material Santoprene TPV, IP Rating IP67, NEMA Receptacle Configuration L22-30R, Number of Poles 4, Number of Wires 5, Phase Three, Polarized Yes, Resistance Properties Watertight, Shrouded Yes, Voltage Rating 277/480V AC, Wire Connection Type Screw Terminals, Wiring Style Standard, Cap Type Press-On Cap, Contact Material Nickel-Plated Brass, Face Diameter 2.75 in