Rated voltage (V): 220, 230, 240, 380, 415;

Rated current (A): 20, 40;

Thread of the inlet: G1/2~G2 / M20~M63 * 1.5 / NPT1/2~2;

Protection level: IP54, IP66;

Product Detail | Technical Information | Packaging | More

Product Detail

Shanghai Metal Corporation is a leading Explosion‑Proof Junction Box manufacturer and supplier.

Explosion‑proof junction box is a sealed electrical connection enclosure for wiring junction in hazardous locations. It accommodates cable connection and branch wiring for electrical circuits. This product is deployed in sites containing flammable gas, vapor or combustible dust, such as oil rigs, mining sites, chemical factories and petrochemical facilities. Its flame‑proof housing contains internal electric arcs and sparks inside the enclosure, avoiding ignition of surrounding explosive atmospheres. It isolates internal wiring from outside dust and liquid ingress, preventing short‑circuit risks caused by moisture and particle pollution, so wiring circuits keep continuous and secure under harsh outdoor and corrosive industrial conditions.

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It is assembled by flame‑proof outer enclosure and internal wiring cavity; The outer shell isolates internal electric arcs from external hazardous atmosphere, while inner wiring compartment provides safe space for wire connection and terminal fixing; Multi‑passage structural layout realizes different wiring branching modes; Gap clearance of mating surfaces strictly restricts flame propagation outward; structural clearance differences match diverse hazardous‑area division requirements; Sealing auxiliary components suppress dust and moisture ingress, improving long‑term stability under fluctuating ambient temperature.

1. Flame‑proof Housing Structure Die‑cast aluminum alloy shell traps arcs and sparks, avoiding ignition of flammable materials and explosion hazards.

2. Multiple Thread Specifications Compatible with Metric, G, NPT threads. Fits global wiring standards with no extra adapters.

3. High‑grade Ingress Protection IP54 / IP66 dust‑proof and water‑proof design prevents moisture‑dust short‑circuits and wiring faults.

4. Multi‑port Optional Layout Optional port configurations for cable branching to suit various field junction layouts.

1. Petroleum & Off‑shore Facilities Oil rig and petrochemical‑site wiring junctions. Flame‑proof shell isolates sparks. Recommended: IP66, NPT thread.

2. Mining Industry Sites Underground & surface mine power distribution. Dust and impact resistant. Preferred: IP54 / IP66 multi‑port types.

3. Chemical & Pharmaceutical Plants Workshops with flammable‑gas environments. Blocks ingress of hazardous gas. Suggested: G‑thread 3‑way / 4‑way.

4. Outdoor Hazardous Industrial Zones Outdoor hazardous‑zone power wiring. Rain‑dust resistant sealed structure. Die‑cast aluminum IP66 enclosure for long‑term outdoor use.

Technical information of Explosion-proof Junction Box:

Code Explanation Table
Code	Shape	Name
A	One-way flat	One-way hanging
B	Straight two-way flat	Straight two-way hanging
C	Three-way flat	Three-way hanging
D	Four-way flat	Four-way hanging
E	Right-angle two-way flat	Right-angle two-way hanging
F	One-way flat	One-way hanging
G	Straight two-way flat	Straight two-way hanging
H	Three-way flat	Three-way hanging
I	Four-way flat	Four-way hanging
J	Right-angle two-way flat	Right-angle two-way hanging

Packaging of Explosion-proof Junction Box:

Standard Packaging

Each explosion‑proof junction box is wrapped with protective bubble film to prevent surface scratch. Units are packed into individual inner cartons, then consolidated into export cartons. Cartons are strapped onto fumigated wooden pallets and covered by waterproof PE film for ocean shipment.

Shipping

We provide FCL and LCL sea freight according to total order quantity. Air freight and courier service are available for small‑batch spare‑part orders. Available trade terms include EXW, FOB, CIF. Other terms may be available upon request. Shipping cost is calculated based on gross weight, volume, destination and selected delivery method.

Lead Time

Samples: 10‑15 working days

Standard models: 15‑20 working days

Custom non‑standard modifications: 25‑35 working days

Q1: What information do you need for a quotation of explosion‑proof junction boxes?

A: Please provide required rated voltage, rated current, protection level, inlet thread standard and quantity of ports, order quantity, destination port and preferred trade terms. If you need custom‑made size, special surface treatment or certification requirements, also share those details for accurate quotation.

Q2: What is the MOQ and production lead time?

A: Standard explosion‑proof junction boxes accept small‑batch orders. Custom modified products usually require moderate batch quantity. Standard items take 15‑20 working days; customized versions take 25‑35 working days.

Q3: What test documents can you supply?

A: We can offer dimensional inspection reports and factory test certificates according to requirements.

Q4: How do I choose between IP54 and IP66 protection grade?

A: IP54 applies for indoor or sheltered hazardous locations against dust and splashing water; IP66 suits outdoor open‑air sites exposed to heavy rain and water jet washing.

Q5: What installation points should be noticed?

A: Ensure all thread joints are well sealed; do not damage shell flame‑proof mating surface during installation. Damaged flame‑proof surface will lose explosion‑proof function and bring safety hazard.

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Explosion-proof Junction Box

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