Locking Connector Connection Orientation Straight Current Rating 30 A Housing Color Black White Housing Material Nylon IP Rating IP20 NEMA Receptacle Configuration L22-30R Number of Poles 4 Number of Wires 5 Phase Three Resistance Properties Chemical Resistant Impact Resistant Shrouded No Voltage Rating 277/480V AC Wire Connection Type Screw Terminals Wiring Style Standard Cap Type No Cap or Cover Contact Material Brass For Maximum Cable Diameter 1.15 in