Pushbutton Cover Assembly, Constructional Feature Explosionproof, Dust Ignitionproof, Contact Rating 600 VAC 10 Ampere, Contact Configuration 2NO-2NC, Number of Pushbuttons 2, Number of Circuits 2, 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 Pushbutton Station, Approval UL 508/698/1203