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
Explosion Protection Type
- 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.
Product Parameters
- Product Type: BHD91.
- 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: Optional, DQM-II (Ex d) or DQM-III (Ex d) is recommended.
Product Classification & Origin
- HS code: 853650.
- Country of origin: China.
Applicable Industries
- Explosion-Proof Junction Boxes are engineered for hazardous environments including petrochemical, natural gas, coal, metallurgy, military, nuclear power, aerospace, and more.
- Performance: Delivers long-lasting, corrosion-resistant performance in harsh conditions including high temperatures, heavy dust, and corrosive gases.
- Safety Role: It is a critical link within modern industrial safety frameworks, functioning as an engineered safety system rather than just a basic enclosure.
Credibility
- Certifications: Warom Explosion-Proof Terminal Boxes meet stringent global requirements including ATEX, IECEx, and EAC certifications.
- Reliability: Features a T5-T6 temperature rating and IP66 protection.
- Service: Warom supports projects with a seamless, end-to-end service from initial design assessment to final certification.
FAQ
- Q1: What are the principles of explosion-proof junction boxes?
- A: Based on two main types: Flameproof (Ex d), which uses precision gaps to cool flames, and Increased Safety (Ex e), which prevents arcs/sparks via enhanced insulation.
- Q2: Are the terminal boxes need regular maintenance?
- A: Yes. Critical checks include inspecting flameproof surfaces, ensuring tight fasteners, and replacing damaged parts with original factory spare parts.
- Q3: Can internal wiring be connected carelessly after installing the ex-terminal boxes?
- A: Absolutely not! The box only provides “containment.” Internal electrical connections must comply with electrical standards.
- Q4: Is it fully waterproof/dustproof?
- A: Depends on its IP rating. Typical hazardous location junction boxes (such as IP66/67) resist powerful water jets or temporary immersion.
