Push Button Mushroom Head, Type Button, Used On ECS Series Control Station and Momentary Contact, Constructional Feature Dust Ignitionproof, Explosionproof, Enclosure Class I Div 1 and 2 Group B C D, Zone 1 and 2, Class II Div 1 and 2 Group E F G, Class III, NEMA 3R/7B/7C/7D/9E/9F/9G, Cap Color Green, With Weather Boot and Mushroom Head