Class I, Division 1 Enclosures (class 1, division 1) and Class II, Division 1 Enclosures (class 2, division 1 )

Explosion-proof (also spelled explosionproof) and flameproof enclosures are solidly constructed junction boxes for use in hazardous area locations. These enclosures house varying electrical components such as: terminal blocks, switches, transformers, relays and other arching & sparking devices. These boxes are engineered to contain an internal explosion from gases, vapors, dusts and fibers to maintain a safe surrounding atmosphere. They are corrosion resistant and maintain a high tolerance to extreme temperatures. These flameproof enclosures are the ideal solution for hazardous locations (class I, Division 1  and Class II Division 1). Being explosion-proof, they will contain any internal explosions from spreading to the external environment, thus preventing injuries and the damaging of property.

Hazardous area explosion-proof and flameproof enclosures are classified into different protection ratings, depending on the location and the level of protection they offer. These ratings are based on the National Electrical Manufacturers Association (NEMA) standards, and also the International standard EN 60529 for Ingress Protection (IP) which indicate the level of protection against electrical hazards like corrosion, dust, rain, splashing & hose-directed water and ice formation.

Ex Industries offers a wide selection of sizes of hazardous area enclosures: explosion-proof enclosures and flameproof Exd housings, in both cast aluminum and stainless steel materials.