Wiring Device-Kellems Connector Body, Female Heavy Duty Standard Sized Straight Cord Mount, 125/250 VAC, 50 A, 3 Pole, 3 Wires, 10-50R NEMA Rating, Commercial/Industrial Grade, 0.625 to 1.218 in Diameter Cord, -40 to 75 deg C, Screw Terminal, Composite, Black, 5.75 x 2.88 x 2.88 in