Technical Data
1.Explosion-proof Type
- Standards Implemented: CENELEC, IEC, NEC
- Applicable Hazardous Areas:Zone 1, Zone 2 explosive gas atmospheres, Zone 21, Zone 22 combustible-dust atmospheres.
- Ex Marking: Ex e II Gb for ammeter, Ex e mb II Gb for voltmeter
2. Product Parameters
- Product Type: Explosion-proof ammeter and voltmeter measurement modules, Model 48 and Model 72; front DIN-rail mounting type and rear panel mounting type, matched with display windows, supporting direct measurement and transformer-connected measurement.
- Certification / Explosion-proof Marking: Ex e II Gb (ammeter), Ex e mb II Gb (voltmeter). Suitable for Zone 1/Zone 2 explosive gas atmospheres, Zone 21/Zone 22 combustible-dust atmospheres.
- Material: Housing material not specified in datasheet.
- Exposed Fasteners: Front DIN-rail installation, rear panel mounting, fit for CP-48 / CP-72 cut-out panels. Screw specifications are not given.
- Electrical Rating-Rated Voltage: Voltmeter ranges:0-25V,0-40V,0-150V,0-250V,0-500V,30V/50V/75V/100V/120V/150V/200V,250V/300V/400V/450V; frequency 50/60Hz, power consumption ≤0.45VA.
- Electrical Rating-Rated Current: Ammeter ranges:0-1A,0-1.5A,0-3A,0-5A,0-7.5A,10A,15A,20A,25A,30A,40A,50A,60A,75A,100A; DC milliammeter:0-20(40)mA,4-20(40)mA; overload factor:2 times,5 times.
- Protection-Ingress Protection: IP rating not stated on datasheet.
- Protection-Ambient Temperature: -40℃~+60℃.
- Connection-Cable Cross-section: No relevant data in datasheet.
- Connection-Cable Entry: No built-in cable entry; module must be installed inside explosionproof enclosure.
- Connection-Cable Gland: Cable glands supplied by external matched explosionproof enclosure.
3.Product Classification & Origin
HS Code:9030331000
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: Available in Model 48 and Model 72, supporting front DIN-rail mounting and rear panel mounting. It adopts direct-measurement and transformer-connected measurement modes, with wide ranges for AC/DC voltage, current and milliamp signals at accuracy class 1.5. Matching display windows are provided to satisfy various on-site electrical parameter monitoring requirements.
- Safety Performance: Explosion-proof marking Ex e II Gb for ammeter and Ex e mb II Gb for voltmeter, applicable to Zone 1/2 gas and Zone 21/22 dust hazardous locations. Operating ambient temperature ranges from -40℃ to +60℃. This module must be installed inside explosion-proof enclosure and cannot be used alone in explosive hazardous atmosphere.
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 are applicable for the CP-48/72 explosion-proof ammeter and voltmeter modules?
A1: It is applicable for Zone 1, Zone 2 gas hazardous areas and Zone 21, Zone 22 dust hazardous areas.
Q2: What is the explosion-proof marking for the CP-48/72 ammeter and voltmeter modules?
A2: The explosion-proof marking is Ex e ll Gb (for ammeter) and Ex e mb ll Gb (for voltmeter).
Q3: What is the operating ambient temperature range of CP-48/72 series modules?
A3: The applicable ambient temperature is -40℃ ~ +60℃.





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