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3. Explosion-Proof Power Maintenance Box
The explosion-proof power maintenance box features a cast aluminum alloy enclosure with a surface treated by high-voltage electrostatic powder coating for superior corrosion resistance. All exposed fasteners are made from stainless steel. The main chamber is equipped with molded case circuit breakers. Designed with a compound structure combining flameproof (Ex d) and increased safety (Ex e) protection methods, the unit offers reliable overload and short-circuit protection. Custom configurations are available upon request.
More Details
Model & Specifications
- Explosion-Proof Markings: Exde IIA T4, Exde IIB T4, Exde IIC T4
- Protection Grade: IP55, IP65
- Rated Voltage: 380V
- Maximum Branch Circuit Current: 100A
- Cable Entry/Exit Options: Top in/top out, bottom in/bottom out (customizable)
- Wiring Method: Steel conduit or cable
- Standards Complied: GB3836-2000, IEC60079
Application Scope
- Hazardous Zones: Zone 1 & Zone 2
- Explosive Gas Atmospheres: IIA, IIB, IIC
- Temperature Class: T4 and below
- Combustible Dust Environments: Zone 20, Zone 21
- Applicable Industries: Petroleum exploration, textiles, chemicals, storage, printing & dyeing, defense, pharmaceuticals, and other explosion-prone industries
