Explosion Proof Lighting Switch CH0850

Technical Data

1.Explosion-proof Type

• Standards Implemented: GB 3836 (Electrical apparatus for explosive gas atmospheres), GB 12476 (Electrical apparatus for combustible dust atmospheres)；IEC 60079 and IEC 61241 series of explosion-proof standards
• Applicable Hazardous Areas: Zone 1, Zone 2 for IIA~IIC explosive gas atmospheres; Zone 21, Zone 22 combustible dust locations.
• Ex Marking: Gas protection: Ex db eb ⅡC T6 Gb (gas), Ex tb ⅢC T80℃ Db (dust). Compliant with GB3836, GB12476 Chinese national standards and IEC60079, IEC61241 international explosion-proof standards. IP66 protection grade, WF2 anti-corrosion grade. Operating temperature: -40℃ ~ +60℃ (gas environment), -40℃ ~ +75℃ (highly corrosive gas environment).

2. Product Parameters

Max Voltage	250V	Max Current	16A
Switch Combination	1NO1NC	IP Protection Grade	IP66
Head Type	Round Head	Material	Plastic
Mechanical Lifespan	100,000 Times	Terminal Type	Ring Terminal
Illumination Type	Full Light Type	LED Indicator Light	None
Application	Electric Heating	Smart Function	None
Structure	Electronic	Place of Origin	Zhejiang, China
Model No.	CH0850-51	Brand	mmffex
Product Name	IP66 Ex NEPSI & CNEX certified full plastic explosion proof button	Color	According to your requirement
Material	Plastic	Certification	Ex NEPSI & CNEX
Type	Electrical Equipment	Rated Voltage	250V
Electrical Life	100,000 Hours	Warranty	1 Year or depend on the products
Intended use	zone0, 1&2 or zone 20,21,22	Ex Mark	Ex II2Gd Exde IIC T6 ExtD A21 T80℃

Sales Unit	Single Unit	Single Package Dimension	20×10×10 cm
Single Product Gross Weight	1.5 KG	—	—

3.Product Classification & Origin

HS Code: 853650
Country of Origin: China

4.Applicable Industries

• Zone 1, Zone 2, IIA–IIC explosive gas atmospheres, and/or Zone 21, Zone 22 combustible dust locations;
• Ambient operating temperature: -40℃ ~ +60℃;
• Service temperature: -40℃ ~ +75℃;
• Suitable for heavily corrosive gas environments;
• Indoor and outdoor installation (IP66);
• Widely used in hazardous areas such as chemical plants, refineries, oil exploitation, offshore oil platforms, cruise ships and military industries.

5.Credibility

MMAIATEX explosion-proof controllers comply with stringent international standards and are undergoing ATEX and IECEx certification to meet application requirements for hazardous area projects worldwide. The CH0850 series explosion-proof lighting switches are engineered for harsh working conditions with an IP66 protection rating. The housing is impact-resistant and anti-static, delivering excellent resistance to water, dust and heavy corrosion. We provide customers with comprehensive technical selection support, complete after-sales warranty and global logistics services. Wherever your project is located, MMAIATEX supports smooth project progress and delivers safe and stable explosion-proof control solutions for Zone 1, Zone 2 explosive gas atmospheres and Zone 21, Zone 22 combustible dust hazardous locations.

6.FAQs

Q1: What hazardous areas are applicable for CH0850 explosion-proof lighting switch? What are its protection and anti-corrosion grades?

A1: It is suitable for Zone 1, Zone 2 ⅡA-ⅡC explosive gas atmospheres and Zone 21, Zone 22 combustible dust locations. It features IP66 protection grade and WF2 anti-corrosion grade, for indoor and outdoor installation, ideal for chemical, oil refining, offshore platform, marine and other heavily corrosive sites.

 

Q2: What are the features of CH0850 housing material? Is it easy to install?

A2: The housing is made of impact-resistant, anti-static alloy plastic with excellent resistance to extreme temperatures and chemicals. The cover and base adopt concave-convex fit with silicone rubber sealing, enabling installation without opening the cover. It offers ample internal wiring space, with optional plastic or metal cable glands.

 

Q3: What are the electrical parameters and available cable entry sizes of CH0850?

A3: Utilization category AC-15 / DC-13, rated voltage 240V, rated current 16A. Cable entries include M16×1.5, M20×1.5, M25×1.5. Top entry and bottom entry versions are available for ordering.