Heatecx Limited
This series of explosion-proof power junction boxes is specifically designed for flammable and explosive hazardous environments, providing safe and reliable solutions for cable entry, branching, connection, and sealing. The housing is sturdy, and the sealing is excellent, making it suitable for Zone 1 and Zone 2 hazardous locations, ensuring the intrinsic safety of the power distribution system.
This product is a flameproof type (or increased safety type, composite type) electrical connection device, mainly used for cable transition, distribution, and equipment power connection in explosive gas or dust atmospheres. Its housing is typically made of high-strength aluminum alloy, stainless steel, or engineering plastic, combined with precise flameproof joint surfaces and multi-layer sealing structures. It can effectively prevent internal arcs, sparks, or high temperatures from igniting external explosive mixtures. The product complies with national and international explosion-proof standards and is a key component for electrical installations in hazardous areas of industries such as petroleum, chemical, natural gas, and pharmaceuticals.
Applicable in explosive gas atmospheres Zone 1, Zone 2 and explosive dust atmospheres Zone 21, Zone 22 (specific applicability must be determined based on the explosion-proof marking).
Industries: Petroleum extraction and refining, chemical industry, natural gas processing and transportation, pharmaceuticals, grain and oil processing, coal mining, ports, etc.
Uses: Power cable connection and branching for explosion-proof equipment such as field instruments, lighting fixtures, motors, and valves; inlet/outlet connection for explosion-proof distribution boxes; transition and sealing of cable conduit systems.
High-Level Explosion-Proof Safety: Complies with standards such as GB3836, IECEx, ATEX, etc. Explosion-proof markings like Ex d IIC T6 Gb provide reliable explosion protection.
Excellent Environmental Tolerance: High protection rating (typically IP65/IP66/IP67), dustproof, waterproof, and corrosion-resistant, suitable for outdoor and harsh industrial environments.
Flexible Wiring Capability: Provides multi-specification cable entry device (gland) interfaces, supporting cables of different diameters, facilitating installation and maintenance.
Robust and Durable Structure: The housing is impact-resistant and UV-resistant (if applicable), with ample internal wiring space and standard terminals.
Easy Installation: Compact design, offers various installation methods such as wall-mounted and pole-mounted, making construction convenient.
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Item |
Specification/Description |
|---|---|
|
Explosion-Proof Marking |
Ex d IIC T6 Gb / Ex e IIC T6 Gb / Ex tD A21 IP66 T80°C, etc. (subject to actual certification) |
|
Protection Rating (IP) |
IP66 (typical) |
|
Housing Material |
Die-cast aluminum alloy, stainless steel 304/316, glass fiber reinforced polyester |
|
Surface Treatment |
Aluminum alloy: polyester powder coating; Stainless steel: passivation treatment |
|
Corrosion Resistance Level |
WF1, WF2 (select based on environment) |
|
Applicable Cable Outer Diameter Range |
Φmm - Φmm (e.g., 6mm - 22mm) |
|
Cable Entry Specification |
G1/2", M20, M25, M32, NPT 1/2", etc. (thread type and quantity optional) |
|
Internal Volume |
XXX cm³ (determines the number of terminals that can be accommodated) |
|
Ambient Temperature |
-20°C to +40°C (or wider range) |
|
Rated Parameters |
Voltage: up to 690V AC; Current: up to 200A (depends on internal components) |
Standard Optional Configurations:
Interface Type and Quantity: The thread specifications (G thread, M thread, NPT thread) and quantity (single-way, two-way, three-way, four-way) of the inlet/outlet ports can be specified.
Cable Sealing Method: Choose elastic sealing grommets or cable glands.
Internal Accessories: Terminal blocks, grounding terminals, DIN rail mounting strips, etc., can be optionally added.
Color: Standard is gray. Conspicuous colors like orange-red, blue, etc., can be provided.
Customization Services:
Non-Standard Sizes: Customize special external dimensions and internal volume according to customer drawings.
Special Materials: Customize materials with higher corrosion resistance grades, such as 316L stainless steel, Hastelloy alloy, etc.
Special Certifications: Apply for explosion-proof certifications specific to target countries or regions, marine certifications, etc., based on market demand.
Integrated Functions: Customize special models integrating overload protection, signal conversion modules, or indicator lights.
The specific applicable area of this product depends on its explosion-proof marking on the housing. For example, the marking "Ex d IIC T6 Gb" indicates it is of the flameproof type, applicable in Zone 1 and Zone 2 where explosive gas atmospheres of Groups IIA, IIB, IIC are present, with the equipment's maximum surface temperature not exceeding 85°C (T6). If used in dust atmospheres, the marking will be different. Before selection, verify that the product's explosion-proof marking matches the hazardous area classification on site.
