Full Technical Description: Natural Finished Copper Free Aluminum Material; 0.875 Inch min. Cable Outer Diameter; 1.375 Inch Max. Cable Outer Diameter; 3 Wire(S); 3 Phase(S); UL 1010, CSA C22.2 Approval; 120 to 240 VAC, 480 VAC Voltage Rating; Class I Div 1 and 2 Group C D Enclosure; 30 Ampere at 125 to 240 VAC, 7 Ampere at 480 VAC Current Rating; 3 HP at 125 to 240 VAC, 1 HP at 480 VAC Power Rating; 4 Pole(S); Ces/Cesd Mating Receptacle; ARKTITE[R] Brand; Application Corrossive, Damp, Hazardous, Wet Location; Constructional Feature Explosionproof; Size 6-7/16 Inch L X 2-3/8 Inch W; CPH Model