Explosionproof Tumbler Switch Control Station, Type Feed Through, Constructional Feature Explosionproof, Dust-Ignitionproof, Voltage Rating 120 to 277 VAC, Current Rating 20 Ampere, Contact Configuration 3-Way, Operator Type Front Operated Lever, Box Type Single Gang, Hub Size 1 Inch, Enclosure Material Zinc Electroplate Chromate Epoxy Powder Coated Malleable Iron, Actuator Material Nylon 6/6, Enclosure Class I Div 1 Group C D, Class I Div 2 Group B C D, Class II Div 1 and 2 Group E F G, Class III, NEMA 3/7CD/9EFG, Approval UL 894/1203, Overall Size 3.72 Inch W x 5.31 Inch D x 7.03 Inch H