MMFFBX2.0 Single 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: explosive gas atmosphere Zone 1, Zone 2;ombustible dust atmosphere IIIA, IIIB, IIIC zones;IIA, IIB, IIC explosive gas atmospheres
• Ex Marking: Gas protection: Ex db IIC T6/T4 Gb, Ex tb IIIC T80℃/T130℃ Db

2. Product Parameters

Explosion-proof Marking	Gas Explosion-proof Marking	Ex dbIIC T6/T4 Gb
	Dust Explosion-proof Marking	Ex tb IC T80℃/T130℃ Db
Standards		GB/T3836.1.GB/T38362.GB/T3836.3.GB/T3836.31
Rated Voltage		AC110.220,230,240,380,660
Rated Current	Main Creuit Raled Current	s50	63sles80	100sles250
	Branch CiIreut Rated Curenst	≤50	≤63	≤200
Main Switch Configuration		AB8.Scheeide.Changshu 5witch,ete,selectable and customizable accordng o oastomer requrements
Entry Thread		NPT1/2~NPT4
		M20*1.5~M1151.5
Protection Grade		IP66
Corrosion Reslstance		WF2
Cable Outer Diameter		φ7-φ54
Ambient Temperature		-55℃-60℃

3.Product Classification & Origin

HS Code: 8537109090
Country of Origin: China

4.Applicable Industries

• Suitable for explosive gas environments Zone 1 and Zone 2;
• Suitable for combustible dust environments Zone IIIA, IIIB, and IIIC;
• Suitable for Class IIA, IIB, and IIC explosive gas environments;
• Suitable for locations with high protection level requirements, damp conditions, and high anti-corrosion requirements;
• Suitable for temperature groups T1\T4\T5\T6;
• Widely used in hazardous locations such as the chemical industry, oil refineries, petroleum extraction, offshore oil platforms, oil tankers, and military industries

5. Credibility

• Certification：The product is equipped with compliance marks for gas and dust explosion-proof applications, strictly complies with national explosion-proof series standards, and achieves IP66 protection grade and WF2 corrosion-resistance grade, meeting compliance requirements for operation in high-risk hazardous locations.
• Reliability：Adopting SMC corrosion-resistant enclosure together with stainless-steel fasteners, fitted with mainstream-brand electrical components, it adapts to harsh working conditions over a wide temperature range. Its modular structure ensures sturdiness and durability for long-term stable operation in various high-risk corrosive environments.
• Support：Custom-design services including selection of switch components, inlet & outlet wiring configuration and outdoor mounting accessories are available to satisfy personalized requirements of different site working conditions.

6.FAQs

Q1: What hazardous areas is the MAMBZZ explosion-proof anti-corrosion distribution device suitable for?

A1: It applies to Zone 1, Zone 2 for explosive gas atmospheres, IIIA / IIIB / IIIC for combustible dust atmospheres, temperature groups T1\T4\T5\T6, widely used in chemical, oil refinery, petroleum extraction, offshore platforms and other hazardous sites.

 

Q2: What is the explosion-proof marking and applicable standard for MAMBZZ unit?

A2: Explosion-proof marking: Ex db IIC T6/T4 Gb, Ex tb IIIC T80℃/T130℃ Db. It complies with national standards GB/T3836.1, GB/T3836.2, GB/T3836.3, GB/T3836.31.

 

Q3: What rated voltages and mounting options are available for MAMBZZ?

A3: Rated voltage: AC110,220,230,240,380,660V. Wall-mount or floor-standing installation; rain cover is optional for outdoor application.