1. Application Scenarios & Protection Grade
Q1: What hazardous areas can the BXM (D) explosion-proof distribution box be applied to?
A1: The product covers IIB and IIC explosion-proof grades, suitable for Zone 1, Zone 2, Zone 21 and Zone 22 flammable and explosive locations. It is widely used in refineries, chemical plants, pharmaceutical factories, dust processing plants and other industrial sites.
Q2: What is the enclosure protection grade? Can it work long-term in outdoor and humid environments?
A2: The protection grade reaches IP65 and IP66. Adopting a dual sealing structure of labyrinth seal and polyurethane foaming, it delivers outstanding waterproof and dustproof performance, enabling stable operation outdoors and in high-humidity, vapor-rich working conditions.
2. Explosion-Proof Standards & Structural Advantages
Q3: What are the explosion-proof marking and temperature class of this product?
A3: Explosion-proof marking: Ex db eb ib mb pxb IIC T4 Gb; Temperature class: T130/80℃Db, complying with explosion-proof specifications for most flammable gas environments.
Q4: What are the advantages of the round Exd flameproof cover?
A4: The circular flange flameproof surface bears force evenly with standard flameproof gaps. It can effectively block internal electric arcs and sparks from leaking out, fundamentally reducing explosion risks.
3. Enclosure Materials & Customization Services
Q5: What enclosure materials are available?
A5: Two mainstream enclosures are provided: integrally cast die-cast aluminum alloy and welded stainless steel. The stainless steel version is equipped with full stainless steel fasteners for superior rust and corrosion resistance.
Q6: Can internal electrical components be customized?
A6: Circuit breakers, measuring instruments, touch screens, inverters, PLC control systems and more can be installed as required. There are few restrictions on internal electrical components, and complete sets can be customized according to on-site power distribution demands.
Q7: What structural styles are optional for the box?
A7: Modular design allows customization of wall-mounted, desk-top and cabinet types. Split structures (upper-lower, left-right, front-rear) are available, and the purge cabinet and control cabinet can be installed separately.
4. Intelligent Functions of Purge & Pressurized Explosion-Proof Type
Q8: What intelligent functions does the purge & pressurized explosion-proof control cabinet have?
A8: Equipped with a PLC programmable controller and a color display supporting Chinese and English languages. It monitors internal pressure and flow in real time, allows customized purge delay and pressure alarm ranges, pops up text reminders for faults, and supports remote power supply and alarm signal output.
5. Corrosion Resistance & Wiring Installation
Q9: Is it suitable for workshops with acid and alkali corrosion or coastal salt spray environments?
A9: The enclosure surface is treated with high-voltage electrostatic plastic spraying. The stainless steel cabinet reaches WF2 heavy anti-corrosion grade, capable of long-term resistance to chemical corrosion and coastal salt spray erosion.
Q10: Can the specifications of cable entry ports be adjusted on demand?
A10: Multiple mounting positions for explosion-proof cable glands are reserved on the box. The diameter and quantity of cable entries can be customized. Matched with stainless steel cable glands, it facilitates on-site wiring construction.
6. Manufacturer Qualifications & Project Support
Q11: Who is the manufacturer? Are complete product qualifications available?
A11: Manufactured by Zhejiang Zonsen Explosion-Proof Electric Co., Ltd. All products are produced in strict accordance with national explosion-proof standards with complete sets of explosion-proof certificates. We accept non-standard complete set customization for various domestic and overseas engineering projects.