CH8000-BH MCB Operating Module

Technical Data

1.Explosion-proof Type

• Standards Implemented: CENELEC, IEC, NEC
• Applicable Hazardous Areas: Zone 1, Zone 2 for explosive gas atmospheres; Zone 21, Zone 22 for combustibledust atmospheres
• Ex Marking: Ex db IIC Gb，Ex tb IIIC Db

2.Product Parameters

• Product Type: Flame-proof external operating-mechanism module for miniature circuit-breaker. It enables external operation of internal MCB inside flame-proof enclosure. Handles in aluminum alloy or engineering-plastic, multiple shaft lengths available. Must be used with Ex-d flame-proof enclosure.
• Certification / Explosion-proof Marking: Ex db IIC Gb, Ex tb IIIC Db. Suitable for Zone 1/2 explosive gas atmospheres, Zone 21/22 combustible-dust atmospheres.
• Material: Main body: aluminum alloy, stainless steel; handle optional: aluminum alloy / engineering plastic.
• Exposed Fasteners: Flame-proof thread M30×1.5, panel cut-out mounting. Adjustable lever-head height: 0-10mm.
• Electrical Rating-Rated Voltage: It is a purely mechanical operating mechanism, no built-in rated voltage.
• Electrical Rating-Rated Current: It is a purely mechanical operating mechanism, no built-in rated current.
• Protection-Ingress Protection: IP66
• Protection-Ambient Temperature: Ambient temperature −40℃～+60℃; operating temperature −40℃～+75℃
• Connection-Cable Cross-section: This is a pure-mechanical component without terminals; cable specification depends on matched flame-proof enclosure.
• Connection-Cable Entry: No cable entry on mechanism module; cable entry is arranged on supporting Ex-d flame-proof enclosure.
• Connection-Cable Gland: Supplied by the matched flame-proof enclosure.

3.Product Classification & Origin

HS Code:8538900000
Country of Origin: China

4.Applicable Industries

• Suitable for: Petrochemical, coal-chemical, pharmaceutical, coating, mining, oil-gas storage & transportation, sewage treatment and other industries with explosive gas and combustible-dust hazardous working conditions.
• Practicality: Two handle materials are optional: aluminum alloy and engineering plastic. The height of lever head is adjustable within 0-10 mm. It adopts M30×1.5 flame-proof thread for panel cut-out mounting with multiple shaft-length options. Installed inside flame-proof enclosure, it enables external on-off operation for internal miniature circuit breaker without opening the cabinet door, convenient for site maintenance and switching control.
• Safety Performance: Explosion-proof marking Ex db IIC Gb, Ex tb IIIC Db, applicable for Zone 1/2 gas and Zone 21/22 dust hazardous locations. Protection grade IP66, ambient operating temperature -40℃～+60℃. This mechanism module cannot be used alone in hazardous locations and must be fitted with Ex-d flame-proof enclosure….

5.Credibility

MMALATEX explosion-proof products comply with strict international standards and hold complete ATEX, IECEX and EAC certifications to ensure compliant operation in global markets. This series of explosion-proof products is engineered for extreme working conditions with IP65/IP66/IP67 protection ratings, delivering excellent resistance to water, dust and corrosion. We provide customers with indepth supporting services, including comprehensive technical support, complete warranty services and worldwide logistics support. Wherever your project is located, MMALATEX ensures smooth project delivery and provides safe and reliable solutions for hazardous areas.

6.FAQs

Q1: What is the explosion-proof marking of CH8000-BH miniature circuit-breaker operating mechanism module?

A1: Its explosion-proof marking is Ex db IIC Gb, Ex tb IIIC Db.

 

Q2: What is the adjustable height range of the lever head for this module?

A2: The adjustable lever head height range is 0-10mm.

 

Q3: What protection grade does CH8000-BH module reach?

A3: Its protection grade is IP66.