Explosion-Proof Junction Box JWBX-30
This Explosion-Proof Junction Box is engineered to deliver maximum safety and industrial-grade reliability in hazardous environments where flammable gases, vapors, or dusts are present. Its robust Exd flameproof enclosure, certified to standards like Exd IIC T6 and ATEX, is designed to safely contain any internal ignition, effectively preventing it from reaching the surrounding atmosphere.
This explosion-proof junction box is engineered to safely house electrical connections in hazardous locations where flammable gases, vapors, or combustible dust are present.
By strictly adhering to international safety standards, it prevents electrical sparks or internal failures from igniting the surrounding explosive atmosphere.
Certified Safety and Physical Construction
Designed to contain internal explosions without rupturing or transferring heat to the outside environment, this junction box relies on advanced metallurgy and strict flameproof principles:
- Explosion-Proof Certification: Fully compliant with rigorous Exd IIC T6 and ATEX international safety standards for hazardous area operation.
- Flameproof Principle: Specifically engineered to safely contain any internal electrical explosions within the enclosure, preventing external ignition.
- Rugged Construction: Manufactured from highly durable, copper-free aluminum alloy or 316 stainless steel to ensure maximum mechanical strength and corrosion resistance.
- Superior Environmental Protection: Features a high IP66/IP67 rating, guaranteeing complete dust tightness and protection against heavy water jets or temporary immersion.
Applications and Specifications
This essential safety hardware is built to support critical infrastructure across multiple high-risk sectors:
- Wide Industry Use: An essential component for the Oil & Gas, Chemical processing, and Mining sectors.
- Available Models & Specifications:
- IIC T6, 300 × 300 × 150 mm, Aluminum Alloy
- IIC T6, 400 × 400 × 170 mm, Aluminum Alloy
- IIC T6, 300 × 300 × 150 mm, Carbon Steel (Powder Coated)
- IIC T6, 400 × 400 × 150 mm, Carbon Steel (Powder Coated)
| Explosion-Proof Mark | ExdIIBT6/DIPA20TA,T6 |
| Defend Grade | IP65 |
| Corrosion Grade | WF1 |
| Ambient Temperature | -40~+60℃ |
| Atmospheric Pressure | 80~110KPa |
| Relative Humidity | ≤95% |
| Lead Hole | 4-G3/4 |
| Total Weight | 4kg |
| Installation | Wall Mounted |
Designed to ensure secure transit and ready-to-use arrival, each junction box is packaged in a sturdy, industry-grade carton. Custom foam inserts provide shock-absorbent cushioning, while individual plastic wrapping offers an additional layer of protection against moisture and dust. Clear labeling, including handling instructions and product specifications, is displayed on the exterior for easy identification and inventory management.
This critical safety component is indispensable across various industries, including:
Oil & Gas: On drilling rigs, refineries, and pipeline stations.
Chemical & Pharmaceutical: In processing plants and storage areas.
Mining: Throughout underground tunnels and coal handling facilities.
Grain Silos & Food Processing: Where combustible dust is a risk.

Joiwo is more than a manufacturer, we are a dedicated telecommunications solutions integrator. We provide not only terminal equipment but also complete, end-to-end communication systems customized to each client’s requirements. Our integrated offerings include:
- Core Communication Systems: IP PBX and IP servers
- Management & Monitoring: Telephone self-diagnostic platforms and unified network management
- Specialized Systems: PAGA (Public Address & General Alarm) and EVCS (Emergency Voice Communication Systems)
- Customization Support: Tailored OEM solutions and functional customization
At Joiwo, we deliver seamlessly integrated communication infrastructures — designed, built, and supported to perform reliably in demanding environments.



