LMM3Z 125-800A MCCB 3P 50kA Icu 1000V UI Micrologic 5.0
LMM3Z 125-800A MCCB 3P 50kA Icu 1000V UI Micrologic 5.0
Rated Operational Voltage:AC: 400V, 415V, 690V
Rated Insulation Voltage:1000V
Rated Impulse Withstand Voltage:12kV
Frame Size Current:100A,160A, 250A, 400A, 630A, 800A, 1000A, 1250A, 1600A
Rated Current:16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A, 125A, 160A, 200A, 250A, 315A, 400A, 500A, 630A, 800A, 1000A, 1250A, 1600A
Number of Poles:3P, 4P
Rated Frequency：50Hz, 60Hz
Rated Ultimate Short-Circuit Breaking Capacity：35kA, 50kA, 65kA, 75kA, 85kA, 100kA, 120kA, 150kA
Rated Service Short-Circuit Breaking Capacity:100% of Icu
Total Breaking Time:≤15ms; Contact separation ≤3ms
Applicable Standards:IEC 60947-2
Certifications:CE, CB, CSA, TUV, CCC
Rated Operational Voltage:AC: 400V, 415V, 690V
Rated Insulation Voltage:1000V
Rated Impulse Withstand Voltage:12kV
Frame Size Current:100A,160A, 250A, 400A, 630A, 800A, 1000A, 1250A, 1600A
Rated Current:16A, 20A, 25A, 32A, 40A, 50A, 63A, 80A, 100A, 125A, 160A, 200A, 250A, 315A, 400A, 500A, 630A, 800A, 1000A, 1250A, 1600A
Number of Poles:3P, 4P
Rated Frequency：50Hz, 60Hz
Rated Ultimate Short-Circuit Breaking Capacity：35kA, 50kA, 65kA, 75kA, 85kA, 100kA, 120kA, 150kA
Rated Service Short-Circuit Breaking Capacity:100% of Icu
Total Breaking Time:≤15ms; Contact separation ≤3ms
Applicable Standards:IEC 60947-2
Certifications:CE, CB, CSA, TUV, CCC
1. Product Overview
The LVMA LMM3Z is a robust, high-current molded case circuit breaker (MCCB) engineered to deliver superior protection and control for industrial, commercial, and renewable energy power systems. Featuring the advanced Micrologic 5.0 electronic trip unit, this 3-pole breaker provides precise, adjustable overcurrent and short-circuit protection for circuits up to 800A. Built to comply with IEC 60947-2 standards, it is ideal for use in main distribution panels, solar combiner boxes, motor control centers, and industrial facilities requiring high breaking capacity and reliable performance.
2. Key Features
- High Current Rating: 800A nominal current (adjustable range 320–800A)
- Advanced Trip Unit: Micrologic 5.0 electronic trip unit with adjustable long-time, short-time, instantaneous, and ground fault protection
- High Breaking Capacity: 50kA Icu at 415V, 35kA at 500V, 20kA at 690V
- High Insulation Voltage: 1000V Ui rating for enhanced safety in high-voltage systems
- 3-Pole Design: Suitable for three-phase AC power distribution systems
- Status & Alarm Functions: Built-in indicators and alarm contacts for system monitoring and diagnostics
- Certified Safety: CE and CB certified to meet international electrical safety standards
- Durable Construction: Robust molded case housing for reliable performance in harsh industrial environments
- Modular Compatibility: Compatible with standard accessories for customization (auxiliary contacts, shunt trips, etc.)
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Model | LMM3Z |
| Poles | 3P |
| Rated Current (In) | 125-800A |
| Rated Insulation Voltage (Ui) | 1000V |
| Rated Impulse Withstand Voltage (Uimp) | 8kV |
| Rated Frequency | 50/60Hz |
| Trip Unit Type | Micrologic 5.0 (Electronic) |
| Breaking Capacity (Icu) | 50kA @ 415V
35kA @ 500V 20kA @ 690V |
| Rated Short-Time Withstand (Icw) | 20kA / 1s |
| Standards Compliance | IEC 60947-2, CE, CB |
| Category | B |
4. Trip Unit Functions (Micrologic 5.0)
- Long-Time Protection (Ir): Adjustable overload protection to prevent overheating of cables and equipment
- Short-Time Protection (Isd): Adjustable short-circuit protection with time delay for selective coordination
- Instantaneous Protection (Ii): Adjustable high-current short-circuit protection for fast fault clearing
- Ground Fault Protection (Ig): Optional adjustable ground fault protection for enhanced safety in sensitive systems
- Diagnostic Features: Built-in indicators for trip status, alarm conditions, and fault history
5. Applications
The LVMA LMM3Z-800M/3P MCCB is ideal for use in:
- Industrial power distribution systems (main feeders, sub-feeders)
- Commercial building electrical panels
- Solar photovoltaic (PV) combiner boxes and inverter systems
- Motor control centers (MCCs) for large motors
- Battery energy storage systems (BESS)
- Mining, oil & gas, and heavy-duty industrial facilities
- Data center power distribution units (PDUs)
6. Installation & Safety Notes
- Professional Installation: Must be installed by qualified electricians in accordance with local electrical codes and regulations.
- Proper Coordination: Coordinate with upstream/downstream protective devices to ensure selective coordination and prevent nuisance tripping.
- Wiring Requirements: Use appropriate copper or aluminum conductors rated for 800A and secure all connections with the correct torque to prevent overheating.
- Environmental Conditions: Install in a clean, dry environment within the specified temperature and humidity range to ensure optimal performance.
- Regular Maintenance: Periodically inspect and test the MCCB, including trip unit settings, connections, and insulation, to maintain safety and reliability.
7. Why Choose the LVMA LMM3Z-800M/3P?
- Superior Protection: The Micrologic 5.0 trip unit provides precise, customizable protection to prevent equipment damage and downtime
- High Breaking Capacity: Handles high fault currents up to 50kA, ensuring safety in high-power systems
- Global Certifications: CE and CB certified, making it suitable for international markets and projects
- Durability: Rugged construction designed for long-term use in demanding industrial environments
- Cost-Effective Reliability: Reduces maintenance costs and downtime with reliable performance and diagnostic features
8. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and installation instructions.
- Contact our engineering team for custom pole configurations or OEM/ODM solutions for large-scale projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
1. Product Overview
The LVMA LMM3Z is a robust, high-current molded case circuit breaker (MCCB) engineered to deliver superior protection and control for industrial, commercial, and renewable energy power systems. Featuring the advanced Micrologic 5.0 electronic trip unit, this 3-pole breaker provides precise, adjustable overcurrent and short-circuit protection for circuits up to 800A. Built to comply with IEC 60947-2 standards, it is ideal for use in main distribution panels, solar combiner boxes, motor control centers, and industrial facilities requiring high breaking capacity and reliable performance.
2. Key Features
- High Current Rating: 800A nominal current (adjustable range 320–800A)
- Advanced Trip Unit: Micrologic 5.0 electronic trip unit with adjustable long-time, short-time, instantaneous, and ground fault protection
- High Breaking Capacity: 50kA Icu at 415V, 35kA at 500V, 20kA at 690V
- High Insulation Voltage: 1000V Ui rating for enhanced safety in high-voltage systems
- 3-Pole Design: Suitable for three-phase AC power distribution systems
- Status & Alarm Functions: Built-in indicators and alarm contacts for system monitoring and diagnostics
- Certified Safety: CE and CB certified to meet international electrical safety standards
- Durable Construction: Robust molded case housing for reliable performance in harsh industrial environments
- Modular Compatibility: Compatible with standard accessories for customization (auxiliary contacts, shunt trips, etc.)
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Model | LMM3Z |
| Poles | 3P |
| Rated Current (In) | 125-800A |
| Rated Insulation Voltage (Ui) | 1000V |
| Rated Impulse Withstand Voltage (Uimp) | 8kV |
| Rated Frequency | 50/60Hz |
| Trip Unit Type | Micrologic 5.0 (Electronic) |
| Breaking Capacity (Icu) | 50kA @ 415V
35kA @ 500V 20kA @ 690V |
| Rated Short-Time Withstand (Icw) | 20kA / 1s |
| Standards Compliance | IEC 60947-2, CE, CB |
| Category | B |
4. Trip Unit Functions (Micrologic 5.0)
- Long-Time Protection (Ir): Adjustable overload protection to prevent overheating of cables and equipment
- Short-Time Protection (Isd): Adjustable short-circuit protection with time delay for selective coordination
- Instantaneous Protection (Ii): Adjustable high-current short-circuit protection for fast fault clearing
- Ground Fault Protection (Ig): Optional adjustable ground fault protection for enhanced safety in sensitive systems
- Diagnostic Features: Built-in indicators for trip status, alarm conditions, and fault history
5. Applications
The LVMA LMM3Z-800M/3P MCCB is ideal for use in:
- Industrial power distribution systems (main feeders, sub-feeders)
- Commercial building electrical panels
- Solar photovoltaic (PV) combiner boxes and inverter systems
- Motor control centers (MCCs) for large motors
- Battery energy storage systems (BESS)
- Mining, oil & gas, and heavy-duty industrial facilities
- Data center power distribution units (PDUs)
6. Installation & Safety Notes
- Professional Installation: Must be installed by qualified electricians in accordance with local electrical codes and regulations.
- Proper Coordination: Coordinate with upstream/downstream protective devices to ensure selective coordination and prevent nuisance tripping.
- Wiring Requirements: Use appropriate copper or aluminum conductors rated for 800A and secure all connections with the correct torque to prevent overheating.
- Environmental Conditions: Install in a clean, dry environment within the specified temperature and humidity range to ensure optimal performance.
- Regular Maintenance: Periodically inspect and test the MCCB, including trip unit settings, connections, and insulation, to maintain safety and reliability.
7. Why Choose the LVMA LMM3Z-800M/3P?
- Superior Protection: The Micrologic 5.0 trip unit provides precise, customizable protection to prevent equipment damage and downtime
- High Breaking Capacity: Handles high fault currents up to 50kA, ensuring safety in high-power systems
- Global Certifications: CE and CB certified, making it suitable for international markets and projects
- Durability: Rugged construction designed for long-term use in demanding industrial environments
- Cost-Effective Reliability: Reduces maintenance costs and downtime with reliable performance and diagnostic features
8. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and installation instructions.
- Contact our engineering team for custom pole configurations or OEM/ODM solutions for large-scale projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
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