Explosion-proof junction box / terminal box
The LD-FBJX is an increased safety (Ex e) explosion-proof junction box manufactured by LD Electric. It is specifically designed for use in hazardous explosive environments and is used for the connection and distribution of lighting, power, and control circuits.
Product Features
Material: Carbon steel or stainless steel, precision-formed by argon-shielded welding.
Surface Treatment: Coating (painting) or chemical surface treatment.
Cable Entry/Exit Method: Equipped with explosion-proof cable glands.
Cable Entry/Exit Configuration: The direction and specifications of cable entries/exits can be customized according to user requirements.
Product Advantages
01
Reliable Explosion-Proof Safety
Increased Safety Design (Ex e):
Engineered to prevent arcs, sparks, and hazardous temperatures under normal operation and single fault conditions, ensuring intrinsic risk control at the source.
Dual Certification for Gas and Dust:
Certified for both explosive gas and combustible dust environments, providing full coverage across hazardous areas.
Standards Compliance:
Strictly compliant with national standards and IEC standards, and certified through authoritative explosion-proof testing.
02
Strong Protection and Durability
IP66 Protection Rating:
Fully dust-tight and resistant to heavy rain and temporary water immersion, ensuring stable performance in outdoor and humid environments.
Optional Materials:
Available in aluminum alloy, 304 stainless steel, or 316 stainless steel. Supports WF1/WF2 anti-corrosion ratings, with excellent resistance to acids, alkalis, and salt spray.
Reliable Sealing Structure:
Combines silicone rubber sealing with a labyrinth structure, providing effective protection against water and dust ingress, excellent aging resistance, and long service life.
02
Excellent Electrical Performance
Wide Voltage and Current Range:
Rated up to ≤11 kV / 600 A, suitable for various industrial power distribution applications.
High-Quality Terminals:
Equipped with internationally recognized brand terminals, ensuring secure connections, reliable contact, and easy maintenance.
Compliant Clearance and Creepage Distances:
Designed in accordance with relevant standards, providing strong insulation performance and effectively eliminating short-circuit risks.
04
Convenient Installation and Operation
Modular Design:
Supports customization of circuit quantity, cable entries/exits, and mounting methods (wall-mounted or floor-mounted).
Flexible Cable Entry Threads:
Available in metric, BSP, or NPT threads, equipped with dedicated cable glands.
Easy Access and Organized Wiring:
Convenient cover opening and clear internal layout ensure high efficiency for on-site installation and maintenance.
05
High Customization and Versatility
Flexible Customization Options:
Supports customization of dimensions, circuit configurations, terminals, materials, and protection ratings to meet specific project requirements.
Broad Wiring Compatibility:
Compatible with both steel conduit and cable wiring systems, making it adaptable to various industrial installation schemes.
Multi-Functional Integration:
Can be equipped with additional components such as surge protection devices, instruments, and switches to meet diverse functional requirements.
06
Brand and Quality Assurance
Trusted Manufacturer:
LD Electric is a high-tech enterprise with over 20 patents and ISO management system certification.
Comprehensive Quality Control:
Full-process quality management ensures suitability for demanding environments such as offshore and chemical applications.
Proven Industry Experience:
Extensive experience in serving petrochemical projects, with a strong reputation for reliability and long-term operational stability.
Normal Operating Conditions
Hazardous Area Classification: Suitable for Zone 1 and Zone 2 explosive gas atmospheres of Group IIA to IIC, or Zone 20, Zone 21, and Zone 22 combustible dust environments.
Temperature Class: T1 to T6.
Installation Environment: Suitable for both indoor and outdoor use (IP66).
Applications: Widely used in hazardous locations such as chemical plants, refineries, oil and gas extraction sites, offshore oil platforms, oil tankers, and military industries for the connection and branching of lighting, power, and control circuits.
Ingredients & Materials
Material: Carbon steel or stainless steel, precision-formed by argon-shielded welding.
Surface Treatment: Coating (painting) or chemical surface treatment.
Related Parameters
|
Model |
Main Technical Parameters |
Ex Marking |
Ambient Temperature |
|
LD-FBJX-e-Ⅳ |
Maximum Voltage: 690V |
Ex eb ⅡC T4 Gb；Ex tb ⅢC T103°C Db |
-55°C≤Ta≤+40°C |
|
LD-FBJX-e-Ⅲ |
Maximum Voltage: 690V |
Ex eb ⅡC T5 Gb；Ex tb ⅢC T90°C Db |
-55°C≤Ta≤+40°C |
|
Ex eb ⅡC T4 Gb；Ex tb ⅢC T105°C Db |
-55°C≤Ta≤+55°C |
||
|
LD-FBJX-e-Ⅱ |
Maximum Voltage: 690V Maximum Current: 50A |
Ex eb ⅡC T6 Gb；Ex tb ⅢC T65°C Db |
-55°C≤Ta≤+40°C |
|
Ex eb ⅡC T5 Gb；Ex tb ⅢC T80°C Db |
-55°C≤Ta≤+55°C |
||
|
LD-FBJX-e-Ⅰ |
Maximum Voltage: 690V Maximum Current: 50A |
Ex eb ⅡC T6Gb；Ex tb ⅢC T68°C Db |
-55°C≤Ta≤+40°C |
|
Ex eb ⅡC T5 Gb；Ex tb ⅢC T83°C Db |
-55°C≤Ta≤+55°C |
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