Appleton CESD Series Receptacle With Mounting Box, Number Of Poles: 4, Number Of Wires: 3, Amperage Rating: 30 AMP, Voltage Rating: 125 - 250 VAC, Phase: 3 PH, Material: Copperfree (4/10 Of 1 PCT Maximum) Aluminum Receptacle And Cover, Malleable Iron Mounting Box, Mounting: Surface Mount With 3/4 IN Feed-Thru Hub, Connection: Pressure Wire Terminal, Motor Horsepower: 3 HP At 125 - 250 VAC, Finish: Ceramic Burnished Receptacle And Triple-Coat (Zinc Electroplate, Chromate And Epoxy Powder Coat) Mounting Box, Dimensions: 5.13 IN Width X 8.69 IN Height X 6-3/4 IN Depth, Standard: Class I, Division 1 And 2, Groups D, UL 1010 (UL 1203), UL 894, UL 1682, UL 1686, UL Listed: E10784, CSA Standard: C22. No 30, C22.2 No. 159, C22.2 No 182.1, For CPH Mating Plugs