Watertight Locking Connector, Connection Orientation Straight, Current Rating 20 A, Housing Color Yellow, Housing Material Santoprene TPV, IP Rating IP66, IP67, IP69K, NEMA Receptacle Configuration L16-20R, Number of Poles 3, Number of Wires 4, Phase Three, Polarized Yes, Resistance Properties Watertight, Shrouded Yes, Voltage Rating 480V AC, Wire Connection Type Screw Terminals, Wiring Style Standard, Cap Type Press-On Cap, Contact Material Nickel-Plated Brass, Face Diameter 2.5 in