Finnish Explosion-proof Distribution Box Sizes and Models

Explosion-proof distribution boxes in Finland are available in multiple certified models, including HRMD92, Terbox, Tribex, and DVT series, with sizes and materials customizable for hazardous zones 1, 2, 21, and 22.

Key Models and Series

1. HRMD92 Series

• Flameproof enclosure (Ex d IIB+H2) suitable for feed distribution, control, and terminal boxes .
• Material: Stainless steel with specialized hinge structure for durability.
• Features: Can house meters, switches, MCCBs, MCBs, PLCs, soft starters, frequency converters, and other industrial components.
• Customization: Boxes can be combined freely to save space; entry holes and plugs (M ☐ x 1.5 or NPT) are configurable.
• Recommended types: DQM-II (Ex d) or DQM-III (Ex d) for hazardous areas. 2. Terbox Series (Atex Delvalle)
• Stainless steel (AISI 304L/316L) terminal and junction boxes .
• IP66 rating, suitable for zones 1, 2 (gas) and 21, 22 (dust).
• Pre-assembled options available for rapid delivery.
• Customizable dimensions and accessories, including Exe and Exi options. 3. Tribex Series
• Large stand-alone ATEX enclosures made of stainless steel 304L/316L .
• Designed for high-capacity installations in hazardous environments.
• Waterproof and robust for industrial applications. 4. DVT Series
• GRP (glass-reinforced polyester) control boxes .
• Flexible and configurable in size, terminals, operators, and cable glands.
• Suitable for local control stations and motor starter applications.

Sizes and Customization

• HRMD92: Modular design allows combination of multiple boxes; entry hole sizes are processed per actual requirements .
• Terbox and Tribex: Available in a wide range of sizes, from compact wall-mounted units to large XXL enclosures .
• DVT Series: Fully configurable dimensions to suit specific control station layouts .
• Custom options include material selection (stainless steel, aluminium, GRP), IP ratings, and internal component layout.

Certifications and Compliance

• ATEX 2014/34/UE, IECEx, and UL Nema 4x certifications for hazardous areas .
• Suitable for zones 1 and 2 (gas), zones 21 and 22 (dust).
• Flameproof (Ex d) and increased safety (Ex e) options available.
• Designed to withstand extreme temperatures and outdoor conditions.

Applications

• Industrial electrical distribution, motor control, and automation systems.
• Oil and gas, petrochemical, and other hazardous environments.
• Can house a wide range of electrical and electronic components, including meters, relays, PLCs, and UPS systems. Finnish suppliers typically offer these models with customizable sizes and configurations to meet local safety standards and installation requirements, ensuring both compliance and operational efficiency in hazardous areas.