Technical Data
1.Explosion-proof Type
- Standards Implemented:IEC 60079 series, EN 60079 series, GB/T 3836 series
- Applicable Hazardous Areas:Gas Zone 1/2; Dust Zone 21/22
- Ex Marking: Gas protection: Ex db eb II C Gb
2.Product Parameters
- Explosion-proof Mark: Ex db eb II C Gb
- Application Zone: Zone 1 & Zone 2
- Ambient Temperature: -40℃ ~ +60℃
- Operating Temperature: -40℃ ~ +75℃
- Compliance Standards: Ex, GB/T3836.1
- Module Poles: 2, 3, 4, 6 poles
- Models & Rated Current: CH0808-25A: 25A CH0808-40A: 40A CH0808-80A: 80A
- Rated Insulation Voltage Ui: 800V
- Rated Impulse Withstand Voltage Uimp: 6kV
- Rated Short-time Withstand Current Icw: 3kA (25A, 40A); 10kA (80A)
- Rated Short-circuit Making Capacity Icm: 4kA (25A, 40A); 17kA (80A)
- Fuse Short-circuit Protection: 20kA 500V/35A (25A) 20kA 500V/63A (40A) 50kA 500V/160A (80A)
- Fuse Protection Characteristic: gG (Compliant with IEC/EN60269-1)
- Terminal Wire Cross-section: 25A: 2×1.5~4mm² 40A: 2×10mm² 80A: 2×16~25mm²
- Housing Material: Unsaturated Polyester Resin
3.Product Classification & Origin
HS Code: 8536500000
Country of Origin: China
4.Applicable Industries
- Applicable Industries Suitable for petroleum, chemical hazardous sites, for Zone1/2 gas and Zone21/22 dust areas.
- Practicality Modular multi-pole contacts, self-locking & self-reset, multi-current ratings. Matched with handle & increased-safety enclosure for various isolation control solutions.
- Safety Performance Flame-retardant unsaturated-resin housing, silver-alloy contacts, spring-energy-storage quick break. Stainless-steel terminal screws, Ex db eb II C Gb, IP66 handle, ensures power safety in hazardous zones.
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 in-depth 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 hazardous areas is CH0808 explosion-proof isolating switch suitable for?
A1: It is applicable for Zone1/2 gas hazardous areas and Zone21/22 dust hazardous areas, widely used in petroleum and chemical industries.
Q2: What are the practical features of this switch module?
A2: It adopts modular mult-pole contact design with self-locking and self-reset functions, and supports multiple current specifications for various isolation control solutions.
Q3: What safety performance does CH0808 have?
A3: It features flame-retardant housing, silver-alloy contacts, spring-energy-storage quick-break structure, stainless-steel terminal screws, Ex db eb II C Gb marking and IP66 handle for hazardous-zone safety.





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