Full Technical Description: Circuit Breaking, Compressor, Conveyor, Motor Generator Set, Polarized, Welder, Exposition, With Fastening Ring Type; Natural Copper-Free Aluminum Material; 0.6 Inch min. Cable Outer Diameter; 1.2 Inch Max. Cable Outer Diameter; 3 Wire(S); UL 1203/1682/1686, CSA C22.2, CE Approval; 600 Volt AC at 50 to 400 Hertz, 250 Volt DC Voltage Rating; 30 Amp Current Rating; 4 Pole(S); Corrosion Resistant, Dirt Tight, Dust Tight, Water Tight, Moisture Resistant, Weatherproof; 2, Shell, Extra Pole Grounding Style; ARKTITE[R] Brand; Overall Dimension 6-1/2 Inch Length X 2-15/16 Inch Width; Enclosure Rating NEMA 4; Includes Cable Grip, Neoprene Bushing; Application Chemical Plant, Heating and Cooling Unit, Lighting System, Manufacturing Plant, Meat Packing Plant, Process Industry; APJ Model