Wiring Device-Kellems Twist-Lock® Insulgrip® Connector, Female Grounding Standard Cord Mount, 250 VAC, 30 A, 2 hp, 2 Pole, 3 Wires, L6-30R NEMA Rating, 0.36 to 0.93 in Diameter Cord, -40 to 75 deg C, Pressure Screw Terminal, Nylon, Black/White, 2.26 x 2.26 x 3.86 in