Columbia Explosion-proof Distribution Boxes are flameproof enclosures designed for hazardous industrial environments, offering customizable configurations, stainless steel construction, and compliance with ATEX and IECEx standards.

Key Features and Specifications

• Enclosure Type: Flameproof (Ex d IIB+H2), suitable for feed distribution in control and distribution systems, including main circuit switch boxes, control boxes, terminal boxes, and motor starting boxes .
• Material: Stainless steel with specialized hinge structures to protect flameproof joints and extend service life .
• Customization: Boxes can be combined and installed freely to save space; special requirements can be accommodated, including the number of cover components and side holes to meet power dissipation and mechanical strength needs .
• Electrical Components: Can house ammeters, voltmeters, power meters, tachometers, temperature controllers, MCCBs, MCBs, AC contactors, thermal relays, PLCs, soft starters, frequency converters, surge protectors, and other industrial control devices .
• Control Capabilities: Supports motor start, stop, corotation, inversion, and comprehensive motor protection; can be equipped for two-site or multi-site control .
• Entry Options: Standard M ☐ x 1.5 plug, with NPT plug available on request .
• Certifications: Conforms to ATEX and IECEx standards for Zone 1 and Zone 2 hazardous areas, ensuring safe operation in explosive atmospheres .

Applications

• Industries: Chemical and petrochemical plants, offshore platforms, refineries, and other environments with potentially explosive gases or combustible dust .
• Functions: Power distribution, monitoring, motor control, and protection of electrical circuits in hazardous locations .

Manufacturers and Availability

• Columbia explosion-proof distribution boxes are produced by specialized manufacturers with experience in ATEX and IECEx certified enclosures . Companies like WAROM Group provide the HRMD92 series, while other suppliers offer a range of explosion-proof junction boxes and enclosures suitable for industrial applications .

Summary

Columbia Explosion-proof Distribution Boxes are robust, customizable, and certified solutions for industrial power distribution and control in hazardous environments. They combine stainless steel construction, flameproof design, and versatile electrical component integration, making them suitable for a wide range of industrial applications while ensuring compliance with international safety standards .