The distribution box (explosion-proof) is an aluminum alloy housing, electrostatic spraying, in accordance with the explosion-proof provisions of GB3836. 2-2000, for the distribution of electric heating products in Class II Zone 1 and Zone 2 explosion-proof places, with overload. ·Flameproof enclosure (Ex db), 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: 304 stainless steel, 316L stainless steel and Q235. ·Equipped. For decades, the only explosion protection technology available in North America was the cast metal enclosure systems designed for Class I, Division 1 environments, also known as NEMA 7 explosionproof enclosures. Today, more than 3/4 of hazardous location installations are done in Class I, Division. These systems are widely used in chemical processing facilities, oil refineries, offshore platforms, oil tankers, and military-grade hazardous zones, where standard electrical enclosures would introduce unacceptable ignition risks. By isolating internal electrical faults and preventing them from. These are available in a range of materials including Stainless Steel, GRP & Sheet Steel from IP42 (Indoor) to IP 66 (Outdoor) Applications.