BHD91 Series Explosion-proof Junction...
- ◆ Constructed with a high-strength copper-free aluminum alloy, this explosion-proof junction boxes features robustness, corrosion resistance and a high protection level (IP66).
- ◆ The flameproof junction box treated with anti-static coating and all fasteners are anti-loosening.
- ◆ Use flameproof junction enclosure and sealed structure to contain and isolate any potential electric sparks or high-temperature faults that may occur at cable connections within the enclosure.
- ◆The IP66 rating prevents internal component of the ex junction boxes aging and corrosion, which extends system life and lowers maintenance costs.
TECHNICAL DATA
Product Parameters
- Product Type: BHD91
- Standards: CENELEC, IEC, NEC
- Zones: Zone 1 and Zone 2; Zone 21 and Zone 22; Class I, Zone 1 and Zone 2; Class I, Division 1, Groups A, B, C, D
- Explosion Protection Ratings:
- IECEx (Gas and dust): Ex db IIC T6 Gb; Ex tb IIIC T80°C Db IP66
- ATEX (Gas and dust): II 2 G Ex db IIC T6 Gb; II 2 D Ex tb IIIC T80°C Db
- Material:
- Enclosure: Copper-free Aluminium Alloy, powder coated surface
- Exposed fastener: Stainless steel
- Enclosure Color: Window grey (RAL7040)
- Rated voltage: Max. 500V AC
- Rated current and Terminal data:
- Cross section 2.5mm² (Rated current: 24A, Terminal number: 12)
- Cross section 4mm² (Rated current: 32A, Terminal number: 10)
- Cross section 6mm² (Rated current: 41A, Terminal number: 8)
- Degree of protection: IP66
- Ambient temperature: -60°C ~ +60°C
- Internal & external earthing: M5/M5
- Cable entries: Standard M☐ x 1.5 plugs; NPT☐ plugs on request
- Cable glands: DQM-II (Ex d) or DQM-III (Ex d) is recommended.
- HS code: 853650
- Country of origin: China
Applicable Industries
Explosion-Proof Junction Boxes are specifically engineered for a wide range of industries and hazardous environments, including petrochemical, natural gas, coal, metallurgy, military, nuclear power, aerospace, firefighting, pharmaceuticals, textiles, grain & oil, municipal services, public security, shipping, ports, railways and so on. Engineered with a robust explosion-proof structure, it delivers long-lasting, corrosion-resistant performance and reliable operation in harsh conditions including high temperatures, heavy dust, and corrosive gases.
It’s a critical link within modern industrial safety frameworks.It is not only a basic enclosure, but also an engineered safety system. Flameproof Junction Boxes via physical isolation and energy control, delivers paramount security for electrical connections in explosion-prone environments, thereby proving indispensable for the protection of life and property.
Credibility
Warom Explosion-Proof Terminal Boxes are engineered for safety in hazardous environments. Certified to ATEX, IECEx, EAC and so on… they meet stringent global requirements. With a T5-T6 temperature rating and IP66 protection, they deliver reliable performance. Warom ex terminal boxes supports your projects with a seamless, end-to-end service — from initial design assessment to final certification, insuring adherence to worldwide occupational health and safety standards.
CTA
For more detailed information on our Ex Certified Junction Boxes, customized solutions, or to request a quote, please do not hesitate to contact us. We are committed to providing you with professional lighting solutions and comprehensive technical service support.
FAQ
Q1: What are the principle of explosion-proof junction boxes?
A1: Based on two main types:
Flameproof (Ex d): Most common. Uses precision gaps at joints to cool flames and reduce pressure during internal explosions.
Increased Safety (Ex e): Prevents arcs/sparks via enhanced insulation and electrical clearances during normal operation.
Q2: Are the terminal boxes need regular maintenance ?
A2: Yes. Critical checks include: Inspecting flameproof surfaces for damage; Ensuring tight fasteners and intact seals; Replacing damaged parts with certified components. Damaged parts must be replaced with original factory or certified spare parts. After maintenance, its original explosion-proof performance and protection grade must be restored.
Q3: Can internal wiring be connected carelessly after installing the ex terminal boxes?
A3: Absolutely not! The box only provides “containment.” The internal electrical connections must comply with electrical standards, and all other equipment in the circuit (such as installation switches) must also be explosion-proof.
Q4: Is it fully waterproof/dustproof?
A4: Depends on its IP rating. Typical hazardous location junction boxes (such as IP66/67) resist powerful water jets or temporary immersion for reliable protection.
