The Pass & Seymour L1620R Turnlok Single Locking Receptacle is designed for reliable electrical performance. Key features include Turnlok® Locking Receptacle, Single, 480 VAC, 20 A, 5 hp, 2 Pole, 3 Wires, NEMA L16-20R, Industrial Grade, -40 to 75 deg C, Nylon, Black, 3.3 in Dia x 3.28 in H x 1.61 in W x 1.19 in D.