MMFFBX2.0 Composite Compartment SMC Flameproof Distribution Box

Technical Data

1.Explosion-proof Type

• Standards Implemented: GB/T3836.1、GB/T3836.2、GB/T3836.3、GB/T3836.31
• Applicable Hazardous Areas: Suitable for explosive gas atmospheres Zone 1, 2;Suitable for combustible dust atmospheres IIIA, IIIB, IIIC;Suitable for explosive gas atmospheres of Group IIA, IIB and IIC.
• Ex Marking: Gas protection: Ex db eb IIC T6/T4 Gb, Ex tb IIIC T80℃/T130℃ Db

2. Product Parameters

• Product Type: Explosion-proof & corrosion-proof power distribution composite enclosure
• Explosion-proof Marking / Certification: Ex db eb IIC T6/T4 Gb, Ex tb IIIC T80℃/T130℃ Db
• Applicable Standards: GB/T3836.1, GB/T3836.2, GB/T3836.3, GB/T3836.31
• Housing Material: Moulded from unsaturated polyester SMC composite
• Exposed Fasteners: 316 stainless steel; internal inserts: 304 stainless steel
• Electrical Specifications: Main & branch switches optional: ABB, Schneider, Changshu Switchgear and others. Equipped with circuit breakers, branch wiring devices, explosion-proof indicator lights and Weidmüller terminal blocks. Circuits can be freely combined.
• Rated Voltage: AC110V, 220V, 230V, 240V, 380V, 660V
• Rated Current: Customizable according to customer selection
• Ingress Protection Rating: IP66; Corrosion-resistance Grade: WF2
• Ambient Temperature: Suitable for temperature class T1-T4/T5/T6
• Installation: Wall-mounted or floor-standing; rain cover available for outdoor use; cable or steel conduit wiring optional
• Applicable Zones: Gas Zone 1, 2; Dust Zone IIIA, IIIB, IIIC; for Group IIA, IIB, IIC explosive gas atmospheres
• Typical Applications: Chemical industry, oil refining, oil & gas extraction, offshore platforms, oil tankers, military and other hazardous sites

3.Product Classification & Origin

HS Code: 8537109090
Country of Origin: China

4.Applicable Industries

• Suitable for explosive gas atmospheres Zone 1, 2;
• Suitable for combustible dust atmospheres IIIA, IIIB, IIIC;
• Suitable for explosive gas atmospheres of Group IIA, IIB, IIC;
• Suitable for sites requiring high protection level, damp-proof and anti-corrosion performance;
• Suitable for temperature classes T1-T4/T5/T6;
• Widely used in hazardous locations such as chemical industry, oil refining, oil exploitation, offshore oil platforms, oil tankers and military industry.

5. Credibility

• Certification: Equipped with complete explosion-proof qualifications and compliant with national explosion-proof standards, it reaches IP66 protection and WF2 corrosion-resistance for gas and dust hazardous areas.
• Reliability: Built with SMC enclosure, stainless-steel fasteners and well-known brand electrical components, it features solid structure for long-term stable operation under harsh and hazardous conditions.
• Support: It allows adjustments on switch configuration, installation forms and wiring modes, and provides special customization services according to actual project requirements.

6.FAQs

Q1: What explosion-proof and protection certifications does this explosion-proof power distribution unit have?

A1: It bears explosion-proof marking Ex db eb IIC T6/T4 Gb, Ex tb IIIC T80℃/T130℃ Db, complies with GB/T3836 series standards. It reaches IP66 protection grade and WF2 corrosion-resistance grade, suitable for gas and dust hazardous areas.

 

Q2: How does this product guarantee reliable operation under harsh conditions?

A2: The SMC unsaturated polyester resin enclosure is anti-static and corrosion-resistant. Hinges and fasteners adopt 316 stainless steel and internal inserts use 304 stainless steel. Equipped with components from ABB, Schneider, Changshu Switchgear and Weidmüller terminals, it runs stably long-term in harsh hazardous sites such as chemical plants and offshore platforms.

 

Q3: What customization and installation supports are available for this unit?

A3: Main-switch, branch-switch and circuit configuration can be customized. Wall-mounted and floor-standing installation are optional with rain cover for outdoor use, supporting both cable wiring and steel conduit wiring. Special design is available for project-specific site conditions.