1600A Air Circuit Breaker | 3P/4P Industrial ACB for LV Distribution
1600A Air Circuit Breaker | 3P/4P Industrial ACB for LV Distribution
Rated current:200、400、630、800、1000、1250、1600A
Rated working voltage: AC400V、AC690V 50Hz
Rated insulation voltage: AC1000V
Installation method: drawer type, fixed type
Wiring method: horizontal wiring
Operation mode: electric operation, manual operation
Tripping type: intelligent controller, under-voltage tripper, shunt release tripper
Usage Category: Class B
Pollution level:3
Standard: IEC 60947-2
Rated current:200、400、630、800、1000、1250、1600A
Rated working voltage: AC400V、AC690V 50Hz
Rated insulation voltage: AC1000V
Installation method: drawer type, fixed type
Wiring method: horizontal wiring
Operation mode: electric operation, manual operation
Tripping type: intelligent controller, under-voltage tripper, shunt release tripper
Usage Category: Class B
Pollution level:3
Standard: IEC 60947-2
1. Product Overview
The LVMA LMW3-1600 3P/4P Air Circuit Breaker (ACB) is a heavy-duty, intelligent air circuit breaker engineered for main power distribution systems requiring high reliability, safety, and advanced protection. Rated 630A with a 3-pole configuration, this ACB is built to protect critical electrical infrastructure from overloads, short circuits, and earth faults, while offering digital monitoring, adjustable settings, and diagnostic capabilities via its intelligent controller. Designed to comply with IEC 60947-2 standards, it is the ideal solution for main switchgear, industrial plants, commercial buildings, data centers, and renewable energy power stations.
2. Key Features
- High-Current Rating: 630A nominal current (expandable up to 1600A frame size) for heavy-duty applications
- Advanced Intelligent Controller: Digital display with adjustable protection parameters, fault monitoring, and self-diagnostic functions
- Multi-Protection Functions: Adjustable long-time, short-time, instantaneous, and ground fault protection for full circuit safety
- High Breaking Capacity: Robust performance with high Icu/Ics ratings for reliable fault clearing in high-power systems
- 3-Pole Design: Suitable for three-phase AC power distribution systems (400V/690V)
- Built-in Safety Indicators: Visual status indicators (ON/OFF, discharged, fault) for quick system status checks
- Modular Design: Compatible with accessories (auxiliary contacts, shunt trips, undervoltage releases, motor operators) for customized integration
- Durable Construction: Heavy-duty arc extinguishing system and robust housing for long-term performance in demanding environments
- Compliant with Global Standards: Designed to meet IEC 60947-2, with safety certifications for international use
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Model | LMW3-1600 |
| Poles | 3P/4p |
| Rated Current (In) | 630A (1600A frame size) |
| Rated Working Voltage (Ue) | 400V / 690V AC |
| Rated Insulation Voltage (Ui) | 1000V |
| Rated Impulse Withstand Voltage (Uimp) | 12kV |
| Rated Ultimate Short-Circuit Breaking Capacity (Icu) | 65kA @ 400V, 50kA @ 690V |
| Rated Short-Time Withstand Current (Icw) | 50kA / 1s, 42kA / 3s |
| Controller Type | Intelligent Digital Controller |
| Display | 4-digit LED display for current, fault codes, and settings |
| Protection Functions | Long-time (Ir), Short-time (Isd), Instantaneous (Ii), Ground fault (Ig) |
| Standards Compliance | IEC 60947-2, CE Certified |
| Mounting Type | Fixed / Draw-out (optional) |
4. Installation dimensions
5. Intelligent Controller Functions
The built-in intelligent controller provides comprehensive monitoring and control:
- Adjustable Protection Settings: Customize overload, short-circuit, and ground fault parameters to match system requirements
- Fault Monitoring & Recording: Captures fault current, type, and time for troubleshooting and system analysis
- Self-Diagnostic Checks: Monitors breaker health and controller status to prevent unexpected failures
- Communication Ready (Optional): Compatible with Modbus/RS485 for remote monitoring and integration into SCADA systems
- Status Alarms: Visual and optional remote alarms for overload, short-circuit, and ground fault conditions
6. Applications
The LVMA LMW3-1600 ACB is ideal for use in:
- Main power distribution switchgear for industrial facilities
- Commercial building main electrical rooms and power centers
- Data center power distribution units (PDUs) and UPS systems
- Renewable energy power plants (solar, wind) main switchgear
- Utility substations and power distribution networks
- Manufacturing plants, mining operations, and heavy industrial facilities
- Hospital, airport, and other critical infrastructure power systems
7. Installation & Safety Notes
- Professional Installation: Must be installed and commissioned by qualified electrical engineers in accordance with local electrical codes and manufacturer guidelines.
- Selective Coordination: Coordinate protection settings with downstream devices to ensure selective tripping and prevent widespread outages.
- Environmental Requirements: Install in clean, dry, well-ventilated switchgear rooms to avoid dust, moisture, and corrosive atmospheres.
- Pre-Commissioning Checks: Verify controller settings, wiring connections, and arc chute integrity before energizing the system.
- Regular Maintenance: Perform periodic inspections, testing, and maintenance (including contact wear checks and controller calibration) to ensure long-term reliability.
8. Why Choose the LVMA LMW3-1600 ACB?
- Unmatched Protection: The intelligent controller provides precise, customizable protection for critical power systems, minimizing downtime and equipment damage
- High Breaking Capacity: Handles extreme fault currents with reliability, ensuring safety in high-power distribution networks
- Advanced Monitoring: Digital diagnostics and fault recording simplify maintenance and troubleshooting
- Flexible Integration: Modular design and optional accessories adapt to a wide range of system configurations
- Proven Reliability: Built to international standards with robust construction for long-term performance in demanding environments
9. 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 LMW3-1600 3P/4P Air Circuit Breaker (ACB) is a heavy-duty, intelligent air circuit breaker engineered for main power distribution systems requiring high reliability, safety, and advanced protection. Rated 630A with a 3-pole configuration, this ACB is built to protect critical electrical infrastructure from overloads, short circuits, and earth faults, while offering digital monitoring, adjustable settings, and diagnostic capabilities via its intelligent controller. Designed to comply with IEC 60947-2 standards, it is the ideal solution for main switchgear, industrial plants, commercial buildings, data centers, and renewable energy power stations.
2. Key Features
- High-Current Rating: 630A nominal current (expandable up to 1600A frame size) for heavy-duty applications
- Advanced Intelligent Controller: Digital display with adjustable protection parameters, fault monitoring, and self-diagnostic functions
- Multi-Protection Functions: Adjustable long-time, short-time, instantaneous, and ground fault protection for full circuit safety
- High Breaking Capacity: Robust performance with high Icu/Ics ratings for reliable fault clearing in high-power systems
- 3-Pole Design: Suitable for three-phase AC power distribution systems (400V/690V)
- Built-in Safety Indicators: Visual status indicators (ON/OFF, discharged, fault) for quick system status checks
- Modular Design: Compatible with accessories (auxiliary contacts, shunt trips, undervoltage releases, motor operators) for customized integration
- Durable Construction: Heavy-duty arc extinguishing system and robust housing for long-term performance in demanding environments
- Compliant with Global Standards: Designed to meet IEC 60947-2, with safety certifications for international use
3. Technical Specifications
| Parameter | Specification |
|---|---|
| Model | LMW3-1600 |
| Poles | 3P/4p |
| Rated Current (In) | 630A (1600A frame size) |
| Rated Working Voltage (Ue) | 400V / 690V AC |
| Rated Insulation Voltage (Ui) | 1000V |
| Rated Impulse Withstand Voltage (Uimp) | 12kV |
| Rated Ultimate Short-Circuit Breaking Capacity (Icu) | 65kA @ 400V, 50kA @ 690V |
| Rated Short-Time Withstand Current (Icw) | 50kA / 1s, 42kA / 3s |
| Controller Type | Intelligent Digital Controller |
| Display | 4-digit LED display for current, fault codes, and settings |
| Protection Functions | Long-time (Ir), Short-time (Isd), Instantaneous (Ii), Ground fault (Ig) |
| Standards Compliance | IEC 60947-2, CE Certified |
| Mounting Type | Fixed / Draw-out (optional) |
4. Installation dimensions
5. Intelligent Controller Functions
The built-in intelligent controller provides comprehensive monitoring and control:
- Adjustable Protection Settings: Customize overload, short-circuit, and ground fault parameters to match system requirements
- Fault Monitoring & Recording: Captures fault current, type, and time for troubleshooting and system analysis
- Self-Diagnostic Checks: Monitors breaker health and controller status to prevent unexpected failures
- Communication Ready (Optional): Compatible with Modbus/RS485 for remote monitoring and integration into SCADA systems
- Status Alarms: Visual and optional remote alarms for overload, short-circuit, and ground fault conditions
6. Applications
The LVMA LMW3-1600 ACB is ideal for use in:
- Main power distribution switchgear for industrial facilities
- Commercial building main electrical rooms and power centers
- Data center power distribution units (PDUs) and UPS systems
- Renewable energy power plants (solar, wind) main switchgear
- Utility substations and power distribution networks
- Manufacturing plants, mining operations, and heavy industrial facilities
- Hospital, airport, and other critical infrastructure power systems
7. Installation & Safety Notes
- Professional Installation: Must be installed and commissioned by qualified electrical engineers in accordance with local electrical codes and manufacturer guidelines.
- Selective Coordination: Coordinate protection settings with downstream devices to ensure selective tripping and prevent widespread outages.
- Environmental Requirements: Install in clean, dry, well-ventilated switchgear rooms to avoid dust, moisture, and corrosive atmospheres.
- Pre-Commissioning Checks: Verify controller settings, wiring connections, and arc chute integrity before energizing the system.
- Regular Maintenance: Perform periodic inspections, testing, and maintenance (including contact wear checks and controller calibration) to ensure long-term reliability.
8. Why Choose the LVMA LMW3-1600 ACB?
- Unmatched Protection: The intelligent controller provides precise, customizable protection for critical power systems, minimizing downtime and equipment damage
- High Breaking Capacity: Handles extreme fault currents with reliability, ensuring safety in high-power distribution networks
- Advanced Monitoring: Digital diagnostics and fault recording simplify maintenance and troubleshooting
- Flexible Integration: Modular design and optional accessories adapt to a wide range of system configurations
- Proven Reliability: Built to international standards with robust construction for long-term performance in demanding environments
9. 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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