LMM3Z Adjustable Electronic MCCB 125-800A 400V
LMM3Z Adjustable Electronic MCCB 125-800A 400V
Standard: IEC60947-2
Poles: 3P,4P
Frame size: 160,250,400,630,800
Rated operational voltage: 230/400/415/690V
Rated insulation voltage: 1000V
Trip unit type: electronic type
Breaking capacity code: L,M,H
Installation method: Fixed type; plug-in type
Adjustable Tripping Setting: Ir(A),tr(s),lsd(xlr),tsd(s),li(xlr)
Ambient Temperature: -25…+40 ºC
Certificate: CE, CB
Standard: IEC60947-2
Poles: 3P,4P
Frame size: 160,250,400,630,800
Rated operational voltage: 230/400/415/690V
Rated insulation voltage: 1000V
Trip unit type: electronic type
Breaking capacity code: L,M,H
Installation method: Fixed type; plug-in type
Adjustable Tripping Setting: Ir(A),tr(s),lsd(xlr),tsd(s),li(xlr)
Ambient Temperature: -25…+40 ºC
Certificate: CE, CB
1. Product Overview
2. Key Specifications
| Parameter | Details |
|---|---|
| Model | LMM3Z |
| Poles | 3P (3-phase) |
| Rated Operational Voltage (Ue) | AC 415V / 50/60Hz |
| Rated Insulation Voltage (Ui) | AC 1000V |
| Rated Impulse Withstand Voltage (Uimp) | 8kV |
| Rated Current (In) | 125-800A (adjustable via electronic trip) |
| Ultimate Breaking Capacity (Icu) | 50kA (at 415V) |
| Service Breaking Capacity (Ics) | 36kA (at 415V) |
| Trip Unit Type | Electronic (adjustable, with LCD display) |
| Protection Functions | Overload (long-time delay), Short-circuit (short-time delay), Instantaneous, Ground fault (optional) |
| Display | LCD for real-time monitoring and trip data |
| Mounting Type | Panel mount |
| Enclosure Rating | IP20 (front face) |
| Compliance Standards | IEC 60947-2, GB/T 14048.2 |
| Operating Temperature | -10°C ~ +60°C |
| Mechanical Life | ≥10,000 operations |
| Electrical Life | ≥2,000 operations at rated load |
3. Core Features
✅ Adjustable Electronic Trip Unit: Programmable long-time (overload), short-time, and instantaneous trip settings for custom protection coordination.
✅ LCD Display & Monitoring: Built-in screen shows real-time current, voltage, and trip history for diagnostics and maintenance.
✅ High Breaking Capacity: 50kA Icu at 415V ensures reliable protection against severe short-circuit faults.
✅ Robust Molded Case: Flame-retardant, impact-resistant plastic housing (UL94 V-0) provides durability in harsh environments.
✅ Push-to-Trip Function: Built-in test button allows manual tripping for safety checks and maintenance procedures.
✅ Large Terminal Connections: Oversized terminals accommodate high-current cables, ensuring secure, low-resistance connections.
✅ Status Indicators & Controls: LED status lights and navigation buttons for easy setup, configuration, and troubleshooting.
✅ Optional Communication Module: Compatible with external modules for remote monitoring and integration into building management systems (BMS).
4. Applications
- Industrial distribution panels and main/branch circuits
- Commercial building power distribution systems
- Motor control centers and heavy machinery
- Generator and backup power system protection
- Solar and wind power plant AC-side distribution
- Data center and large-scale commercial power distribution
5. Why Choose LVMA LMM3Z-250/3E00?
- Precise, Flexible Protection: Electronic trip unit allows fully customizable trip curves, enabling selective coordination and tailored protection for complex systems.
- Advanced Diagnostics: LCD display and trip history simplify troubleshooting, reducing downtime and maintenance costs.
- High-Current Reliability: 250A rating and 50kA breaking capacity make it suitable for demanding industrial applications.
- Durable Construction: Heavy-duty molded case and high-quality components ensure long-term performance in harsh environments.
- Compliant & Safe: Meets IEC 60947-2 standards, providing peace of mind for safety and regulatory compliance.
- Future-Proof Design: Optional communication capabilities allow integration into smart building systems for remote monitoring and control.
6. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and trip coordination guidelines.
- Contact our engineering team for custom configurations, communication module integration, or OEM solutions for large-scale projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
1. Product Overview
2. Key Specifications
| Parameter | Details |
|---|---|
| Model | LMM3Z |
| Poles | 3P (3-phase) |
| Rated Operational Voltage (Ue) | AC 415V / 50/60Hz |
| Rated Insulation Voltage (Ui) | AC 1000V |
| Rated Impulse Withstand Voltage (Uimp) | 8kV |
| Rated Current (In) | 125-800A (adjustable via electronic trip) |
| Ultimate Breaking Capacity (Icu) | 50kA (at 415V) |
| Service Breaking Capacity (Ics) | 36kA (at 415V) |
| Trip Unit Type | Electronic (adjustable, with LCD display) |
| Protection Functions | Overload (long-time delay), Short-circuit (short-time delay), Instantaneous, Ground fault (optional) |
| Display | LCD for real-time monitoring and trip data |
| Mounting Type | Panel mount |
| Enclosure Rating | IP20 (front face) |
| Compliance Standards | IEC 60947-2, GB/T 14048.2 |
| Operating Temperature | -10°C ~ +60°C |
| Mechanical Life | ≥10,000 operations |
| Electrical Life | ≥2,000 operations at rated load |
3. Core Features
✅ Adjustable Electronic Trip Unit: Programmable long-time (overload), short-time, and instantaneous trip settings for custom protection coordination.
✅ LCD Display & Monitoring: Built-in screen shows real-time current, voltage, and trip history for diagnostics and maintenance.
✅ High Breaking Capacity: 50kA Icu at 415V ensures reliable protection against severe short-circuit faults.
✅ Robust Molded Case: Flame-retardant, impact-resistant plastic housing (UL94 V-0) provides durability in harsh environments.
✅ Push-to-Trip Function: Built-in test button allows manual tripping for safety checks and maintenance procedures.
✅ Large Terminal Connections: Oversized terminals accommodate high-current cables, ensuring secure, low-resistance connections.
✅ Status Indicators & Controls: LED status lights and navigation buttons for easy setup, configuration, and troubleshooting.
✅ Optional Communication Module: Compatible with external modules for remote monitoring and integration into building management systems (BMS).
4. Applications
- Industrial distribution panels and main/branch circuits
- Commercial building power distribution systems
- Motor control centers and heavy machinery
- Generator and backup power system protection
- Solar and wind power plant AC-side distribution
- Data center and large-scale commercial power distribution
5. Why Choose LVMA LMM3Z-250/3E00?
- Precise, Flexible Protection: Electronic trip unit allows fully customizable trip curves, enabling selective coordination and tailored protection for complex systems.
- Advanced Diagnostics: LCD display and trip history simplify troubleshooting, reducing downtime and maintenance costs.
- High-Current Reliability: 250A rating and 50kA breaking capacity make it suitable for demanding industrial applications.
- Durable Construction: Heavy-duty molded case and high-quality components ensure long-term performance in harsh environments.
- Compliant & Safe: Meets IEC 60947-2 standards, providing peace of mind for safety and regulatory compliance.
- Future-Proof Design: Optional communication capabilities allow integration into smart building systems for remote monitoring and control.
6. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and trip coordination guidelines.
- Contact our engineering team for custom configurations, communication module integration, or OEM solutions for large-scale projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
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