Selector Switch Cover Assembly, Constructional Feature Explosionproof, Dust Ignitionproof, Operation Type Maintained, Contact Configuration 4NO-4NC, Number of Selector Switches 1, Number of Circuits 4, Number of Positions 2, Operator Type Front Operated Knob, Material Zinc Electroplated Chromate Epoxy Powder Coated Malleable Iron, Enclosure Class I Div 1 Group C D and Div 2 Group B C D, Class II Div 1 and 2 Group E F G, Class III, NEMA 3/7CD/9EFG,, Used On Selector Switch, Approval UL 508/698/1203