What type of explosion-proof distribution box does the unit use

The unit uses an Ex-d (flameproof) explosion-proof distribution box, typically made of copper-free aluminum alloy or stainless steel, certified for ATEX and IECEx hazardous zones.

Key Features

Protection Method: The distribution box employs Ex-d flameproof construction, designed to contain any internal explosion and prevent ignition of surrounding flammable gases or dust. The enclosure features precision-machined flame paths that safely release internal pressure while cooling combustion gases below ignition temperature . Material Construction: Common materials include copper-free aluminum alloy for corrosion resistance and lightweight installation, or stainless steel for harsh and corrosive environments. These materials provide durability, thermal conductivity for heat dissipation, and long service life in extreme conditions . Certifications and Standards: These boxes are certified under ATEX and IECEx, suitable for Zone 1, 2, 21, and 22 hazardous areas. They comply with international safety standards for explosive atmospheres, ensuring safe operation in petrochemical, oil and gas, mining, and chemical processing facilities . Ingress Protection and Temperature Range: Typical enclosures have IP66 rating, offering complete protection against dust and powerful water jets, and operate reliably across -60°C to +60°C, making them suitable for both indoor and outdoor installations . Applications: Ex-d distribution boxes are used for power distribution and circuit protection, integrating breakers or fuses, and are widely deployed in petroleum, chemical, mining, pharmaceutical, and new energy sectors where flammable gases or combustible dust are present . Customization: These units can be customized with terminals, cable glands, and optional tempered glass windows, depending on the zone classification, gas group, and specific operational requirements . In summary, the unit's explosion-proof distribution box is an Ex-d flameproof enclosure, constructed from robust, corrosion-resistant materials, certified for hazardous zones, and designed to safely contain internal explosions while protecting surrounding environments.