EMH521 20200 Dust-Ignitionproof Feed-Through Explosionproof Raintight Instrument Housing, 5-3/4 in W x 5-11/16 in D x 5-3/4 in H, NEMA 3/12/7D/9E/9F/9G NEMA Rating, Copper-Free Aluminum

Crouse-Hinds series EMH explosionproof instrument housings are used to enclose 2-1/2″ or 3-1/2″ diameter round, flush rim-mounting meters, whose scale or dial would be visible in the 2-5/8″ diameter glass window. EMH instrument housings are certified for use in Class I, Division 1 and Class II, Division 1 areas. They are commonly used in oil refineries, chemical plants, paint and varnish manufacturing plants, coal processing locations, grain processing plants, and other industries with explosive gases or dusts.