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CM3LE (M3L) Earth Leakage MCCB Molded-Case-Circuit-Breaker 63A-800A with transparent case
JINGE CM3L transparent residual current molded case circuit breaker is an upgraded visual safety model based on the proven CM3 industrial MCCB platform. Combining high-sensitivity leakage detection, overload and short-circuit triple protection with a transparent visible housing, it delivers all-round circuit safety for modern industrial, commercial and public power distribution systems.
Compliant with IEC 60947-2 international standards, CM3L transparent version adapts to 50/60Hz, 400/415V AC industrial grids with a complete current range. The clear transparent cover enables direct observation of internal contact status, mechanical operation and tripping conditions, greatly simplifying daily inspection and fast fault diagnosis for engineering teams. It is an upgraded high-value leakage protection solution for high-standard projects and professional distribution matching.
Key Adventages
- Transparent visual housing design：Real-time observation of internal components, contact state and trip indication, solving hidden fault risks and improving maintenance efficiency.
- 3-in-1 integrated protection：Built-in leakage, overload and short-circuit protection to prevent electric shock injuries, insulation failure and electrical fire hazards.
- Fast & accurate leakage tripping：High-sensitivity residual current response, stable action in humid, dusty and harsh industrial environments.
- Inherited CM3 high-performance structure：Excellent short-circuit breaking capacity, optimized arc extinguishing system and long mechanical service life.
- Adjustable leakage sensitivity：Multiple residual current levels optional to meet fire protection, equipment safety and human protection requirements.
- High-grade transparent flame-retardant material：Heat resistance, impact resistance and anti-aging properties for long-term continuous operation.
- Universal installation & wiring：Same mounting dimensions as standard CM3 series, easy replacement, cabinet installation and on-site commissioning.
Main Technical Parameters
CM3L (M3L) Series Earth Leakage MCCB – Detailed Technical Parameters
| Item | CM3L-100 | CM3L-225 | CM3L-400 | CM3L-630 |
|---|---|---|---|---|
| Frame Current Inm (A) | 100 | 225 | 400 | 630 |
| Rated Current In (A) | 10,16,20,32,40,50,63,80,100 | 100,125,160,180,200,225 | 225,250,315,350,400 | 400,500,630 |
| Rated Insulation Voltage Ui (V) | 690 | 800 | 690 | 690 |
| Rated Operating Voltage Ue (V) | 400 | 230/400 | 400 | 400 |
| Rated Impulse Withstand Voltage Uimp (kV) | 6 | 8 | 6 | 6 |
| No. of Poles | 3P+N / 4P | 3P+N / 4P | 3P+N / 4P | 3P+N / 4P |
| Breaking Class | L/M | L/M/H | L/M | L/M |
| Ultimate Breaking Capacity Icu (kA) AC400V | 35/50 | 35/50/65 | 45/65 | 45/65 |
| Service Breaking Capacity Ics (kA) AC400V | 25/30 | 25/30/50 | 22.5/32.5 | 22.5/32.5 |
| Leakage Current (mA) | 30/100/300 | 30/100/300 | 30/100/500 | 100/500 |
| Arc Flash Distance (mm) | ≤50 | ≤50 | ≤100 | ≤100 |
| Operating Cycles / Hour | 120 | 120 | 60 | 60 |
| Mechanical Life With Load | 3000 | 3000 | 1500 | 1500 |
| Mechanical Life No Load | 7000 | 7000 | 6500 | 6500 |
| Tripping Type | Thermal-magnetic + Leakage | Thermal-magnetic + Leakage | Thermal-magnetic + Leakage | Thermal-magnetic + Leakage |
| Protection Class | IP30 | IP30 | IP30 | IP30 |
| Standards | GB14048.2, IEC60947-2 | GB14048.2, IEC60947-2 | GB14048.2, IEC60947-2 | GB14048.2, IEC60947-2 |
CM3L (M3L) Series – Core Features
- Integrated earth leakage protection
- Adjustable leakage current (30mA/100mA/300mA/500mA)
- Overload, short circuit and leakage triple protection
- High safety and anti-fire performance
- Stable zero-sequence current detection
- Easy installation and maintenance
CM3L (M3L) – Typical Applications
Hospitals & Medical Facilities
Schools & Public Buildings
Construction Site Power
Commercial Complexes
Residential Power Distribution
High Safety Industrial Sites
CM3L transparent leakage molded case circuit breaker is widely used in factory main incoming lines, workshop power distribution cabinets, construction site temporary power supply, municipal facilities, water treatment projects, petrochemical industry and large commercial building distribution rooms. It is specially designed for occasions requiring both residual current safety management and regular visual equipment inspection.
With the dual strengths of industrial-grade leakage protection and transparent visible structure, CM3L transparent edition helps users improve power supply safety level and daily operation management efficiency. It is an ideal differentiated product for electrical distributors, complete cabinet manufacturers and engineering contractors to enrich product lines and support high-end project bidding.
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