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M3EL Electronic Adjustable MCCB Molded-Case-Circuit-Breaker with LCD screen
JINGE M3EL series is an intelligent electronic adjustable molded case circuit breaker with a built-in LCD digital display. Designed for high-safety, high-stability AC 400V power distribution systems, it integrates precise overload, short-circuit and leakage protection with real-time parameter monitoring and intelligent control functions.
Equipped with a high-definition LCD screen and adjustable electronic tripping unit, M3EL supports adjustable rated current (Ir) and adjustable leakage current (IΔn). It provides accurate, reliable and visualized protection for intelligent power grids, data centers, high-rise buildings and industrial automation systems while complying with IEC 60947-2 and GB 14048.2 international standards.
Key Adventages
- High-definition LCD digital display: Real-time visualization of current, voltage, fault codes and operating status.
- High-precision electronic adjustable tripping: Adjustable rated current (Ir) and leakage current (IΔn) for flexible load matching.
- Ultra-high breaking & withstanding performance: Strong short-circuit breaking capacity and high short-time withstand current for heavy-duty safety.
- Intelligent control & fault alarm: Equipped with reset, test and alarm functions; clear indicator for fault and leakage status.
- Communication interface for smart systems: Built-in port for remote monitoring and intelligent power distribution integration.
- High insulation & impulse withstand voltage: Up to 1000V insulation voltage and 12kV impulse withstand voltage for superior safety.
- 4P full-featured design: Standard 4-pole structure with disconnectable N pole, suitable for three-phase four-wire systems.
Main Technical Parameters
M3EL Series LCD MCCB – Detailed Technical Parameters
| Parameter | M3EL-250Y/4 | M3EL-100Y/4 | M3EL-400Y/4 |
|---|---|---|---|
| Rated Current (In) | 250A (A-class adjustable) | 100A (A-class adjustable) | 400A (A-class adjustable) |
| Rated Operating Voltage (Ue) | AC400V 50Hz | AC400V 50Hz | AC400V 50Hz |
| Rated Insulation Voltage (Ui) | 1000V | 1000V | 1000V |
| Rated Impulse Withstand Voltage (Uimp) | 12kV | 12kV | 12kV |
| Ultimate Breaking Capacity (Icu) | 50kA/1s | 40kA/1s | 65kA/1s |
| Service Breaking Capacity (Ics) | 37,5kA | 30kA | 48.75kA |
| Withstand Current (Icw) | 50kA | 40kA | 50kA |
| Leakage Current (IΔn) | 50~1000mA (adjustable) | 30~500mA (adjustable) | 50~1000mA (adjustable) |
| Poles | 4P (with N pole) | 4P (with N pole) | 4P (with N pole) |
| Protection Class | Type B (GB14048.2) | Type B (GB14048.2) | Type B (GB14048.2) |
| Display Type | LCD Digital Screen | LCD Digital Screen | LCD Digital Screen |
M3EL Series – Installation & Operation Guide
M3EL series intelligent MCCB adopts vertical installation, with green communication terminal for connecting to intelligent control system, and functional buttons (reset/test/alarm) for easy operation.
- Installation ambient temperature: -5°C ~ +40°C, humidity ≤90% (no condensation)
- Adjust Ir (rated current) and IΔn (leakage current) via panel buttons according to load demand
- LCD screen displays real-time working status, fault code and electrical parameters
- Red indicator: fault alarm; yellow indicator: leakage alarm
- Complies with JINGE electrical standard, matched with intelligent distribution box
M3EL Series – Typical Applications
Intelligent Industrial Distribution System
High-Rise Building Power Supply
Data Center Auxiliary Power
Three-Phase Four-Wire Power System
High-Safety Industrial Equipment
Commercial Complex Power Distribution
M3EL intelligent LCD MCCB is widely used in intelligent industrial distribution systems, data center auxiliary power, high-rise building power supply, commercial complex power rooms, automated production lines, high-safety equipment, and three-phase four-wire power distribution cabinets.
It is specially designed for projects requiring visualized monitoring, adjustable protection parameters, leakage safety and intelligent system connectivity. As a high-end intelligent protection solution, M3EL greatly improves power supply reliability, reduces maintenance costs and enhances safety for global engineering contractors, integrators and high-end power users.
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