LMM1 MCCB 63-2500A

LMM1 MCCB 63-2500A

  • Model Name:LMM1
  • Rated Current:63,125,250,400,630,800,1000,1250,1600,2000,2500
  • Rated Voltage :AC230/415/500/690
  • Poles:1P,2P,3P,4P
  • Rated Insulation Voltage:AC800V
  • Standard:IEC60947-2
  • Model Name:LMM1
  • Rated Current:63,125,250,400,630,800,1000,1250,1600,2000,2500
  • Rated Voltage :AC230/415/500/690
  • Poles:1P,2P,3P,4P
  • Rated Insulation Voltage:AC800V
  • Standard:IEC60947-2

1. Product Overview

The LVMA  Molded Case Circuit Breaker (MCCB) is a heavy-duty, 3-pole protection device engineered for three-phase low-voltage AC distribution systems. With a rated operational voltage of 400V and a high breaking capacity of 65kA, this MCCB provides robust overload and short-circuit protection for main and branch circuits in industrial facilities, commercial buildings, and large-scale power distribution networks. Built to comply with IEC 60947-2 standards, it ensures reliable performance and safety in demanding environments.

2. Key Specifications

Parameter Details
Model  MCCB (M1 Series)
Poles 1P / 2P / 3P / 4P
Rated Current (In) 63-2500A
Rated Operational Voltage (Ue) AC 400V / 50Hz
Rated Insulation Voltage (Ui) AC 690V
Rated Impulse Withstand Voltage (Uimp) 8kV
Ultimate Breaking Capacity (Icu) 65kA (at 400V)
Service Breaking Capacity (Ics) 50kA (at 400V)
Protection Functions Overload protection (thermal), Short-circuit protection (magnetic)
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

High Breaking Capacity: 65kA ultimate short-circuit breaking capacity ensures system stability during severe fault conditions, suitable for high-power industrial applications.

Dual Protection Mechanism: Thermal trip for gradual overloads and fast magnetic trip for short-circuits, preventing equipment damage and fire hazards.

Robust Molded Case: Flame-retardant, impact-resistant plastic housing (UL94 V-0) provides excellent durability and electrical insulation.

Clear ON/OFF Indication: Color-coded switch (red ON/green OFF) with visible status marking for safe operation and maintenance checks.

Versatile Current Ratings: Available in a wide range of current ratings (100A–630A) to match different system capacities and application requirements.

Reliable Performance: Compliant with IEC 60947-2 standards, with rigorous testing to ensure consistent performance in demanding environments.

Easy Installation: Standard panel mount design with large terminal openings for secure, high-current wiring connections.

Low Maintenance: High-quality contacts and trip mechanisms ensure long service life with minimal upkeep.

4. Product dimensions

5. Applications

  • Main and branch protection in industrial distribution panels
  • Commercial building power distribution systems
  • Three-phase motor control centers and machinery
  • Generator and backup power system main disconnects
  • Solar and wind power AC-side distribution
  • Mining, manufacturing, and heavy-duty industrial applications

6. Why Choose LVMA MCCB?

  • Superior Fault Protection: 65kA breaking capacity ensures reliable protection against severe short-circuit faults, making it ideal for high-power systems.
  • Versatile Compatibility: Multiple current ratings and 3-phase design suit a wide range of industrial and commercial distribution applications.
  • Durable Construction: Flame-retardant housing 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.
  • Cost-Effective Reliability: Robust performance at a competitive price point, reducing long-term maintenance and replacement costs.

7. Technical Documents & Support

  • Download the full datasheet for detailed specifications, wiring diagrams, and installation instructions.
  • Contact our engineering team for custom current ratings, 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  Molded Case Circuit Breaker (MCCB) is a heavy-duty, 3-pole protection device engineered for three-phase low-voltage AC distribution systems. With a rated operational voltage of 400V and a high breaking capacity of 65kA, this MCCB provides robust overload and short-circuit protection for main and branch circuits in industrial facilities, commercial buildings, and large-scale power distribution networks. Built to comply with IEC 60947-2 standards, it ensures reliable performance and safety in demanding environments.

2. Key Specifications

Parameter Details
Model  MCCB (M1 Series)
Poles 1P / 2P / 3P / 4P
Rated Current (In) 63-2500A
Rated Operational Voltage (Ue) AC 400V / 50Hz
Rated Insulation Voltage (Ui) AC 690V
Rated Impulse Withstand Voltage (Uimp) 8kV
Ultimate Breaking Capacity (Icu) 65kA (at 400V)
Service Breaking Capacity (Ics) 50kA (at 400V)
Protection Functions Overload protection (thermal), Short-circuit protection (magnetic)
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

High Breaking Capacity: 65kA ultimate short-circuit breaking capacity ensures system stability during severe fault conditions, suitable for high-power industrial applications.

Dual Protection Mechanism: Thermal trip for gradual overloads and fast magnetic trip for short-circuits, preventing equipment damage and fire hazards.

Robust Molded Case: Flame-retardant, impact-resistant plastic housing (UL94 V-0) provides excellent durability and electrical insulation.

Clear ON/OFF Indication: Color-coded switch (red ON/green OFF) with visible status marking for safe operation and maintenance checks.

Versatile Current Ratings: Available in a wide range of current ratings (100A–630A) to match different system capacities and application requirements.

Reliable Performance: Compliant with IEC 60947-2 standards, with rigorous testing to ensure consistent performance in demanding environments.

Easy Installation: Standard panel mount design with large terminal openings for secure, high-current wiring connections.

Low Maintenance: High-quality contacts and trip mechanisms ensure long service life with minimal upkeep.

4. Product dimensions

5. Applications

  • Main and branch protection in industrial distribution panels
  • Commercial building power distribution systems
  • Three-phase motor control centers and machinery
  • Generator and backup power system main disconnects
  • Solar and wind power AC-side distribution
  • Mining, manufacturing, and heavy-duty industrial applications

6. Why Choose LVMA MCCB?

  • Superior Fault Protection: 65kA breaking capacity ensures reliable protection against severe short-circuit faults, making it ideal for high-power systems.
  • Versatile Compatibility: Multiple current ratings and 3-phase design suit a wide range of industrial and commercial distribution applications.
  • Durable Construction: Flame-retardant housing 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.
  • Cost-Effective Reliability: Robust performance at a competitive price point, reducing long-term maintenance and replacement costs.

7. Technical Documents & Support

  • Download the full datasheet for detailed specifications, wiring diagrams, and installation instructions.
  • Contact our engineering team for custom current ratings, 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.

Data Download

LVMA low voltage selection manual

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