Locking Connector Body, NEMA Configuration L8-20R, Current Rating 20 Amps, Voltage Rating 480 Volts, Power Rating 5 HP, Number of Poles 2, Number of Wires 3, Color Black/White, Nylon Restrictions Note: See page 618 for NEMA configurations. NEMA Twist-Lock Devices Premium-quality industrial wiring devices feature a powerful cord grip, 1-pc. dust shield, tough nylon housing, visible identification, and roomy wiring chamber.