Rated NEMA 4/7/9 for UL and cUL Classified hazardous areas, are constructed from cast aluminum and is available in sizes ranging from 06" x 08” x 04” to 32” x 36” x 12”. • 64 standard sizes available • One-piece NEMA 4 water tight gasket • Premium, high strength steel cover bolts. 1147/. 1600/. 3500/. 4500/. - Robust carbon steel/stainless steel construction for durability and corrosion resistance. - High protection grade up to IP66, suitable for outdoor and. Flameproof enclosure (Ex d IIB+H2), which can be used as feed distribution equipment in control and distribution system (such as distribution box, switch box of main circuit, control box, terminal box or motor starting box etc. ) ·Enclosure: stainless steel. Equipped with specialized hinge. There are many specifications and models of Distribution box. Low-voltage fixed switchgear GGD series: Mainly used in power industries such as substations and power plants, with high breaking. 1, explosive gas mixture Hazardous locations: Zone 1, Zone 2, Zone 20, Zone 21, Zone 22; 2, explosive gas mixture: Ⅱ A, Ⅱ B, Ⅱ C level 3, the temperature group: T4 T6 1, high-quality carbon steel or stainless steel welding 2, built-in molded case circuit breakers, miniature circuit breakers and so. Explosion-proof distribution boxes are designed to safely control and distribute electrical power in hazardous environments, preventing ignition risks. Shenhai Explosion-proof Technology Co.