Hubbell Wiring HBL28W75BK

Wiring Device-Kellems Twist-Lock Locking Plug, 3-Phase Grounding Male, 250 VAC, 30 A, 3 Pole, 4 Wires, L15-30P NEMA Rating, NEMA 4/4X/6/6P/12 Enclosure, 3/8 to 1 in Diameter Cord, -40 to 60 deg C, Screw Terminal, Brass/Clear Polycarbonate/Thermoplastic Elastomer, Black, 2.77 x 2.77 x 3.94 in