LMQ3-W1 MCCB ATS Automatic transfer switch 63~630A
LMQ3-W1 MCCB ATS Automatic transfer switch 63~630A
Frame grade:63、125、250、630
Rated voltage: AC400V/AC690V
Rated insulated voltage：AC 800V
Contact transfer time：≤3s
Protection function: under-voltage, over-voltage, phase detection
Standard: IEC 60947-2
Frame grade:63、125、250、630
Rated voltage: AC400V/AC690V
Rated insulated voltage：AC 800V
Contact transfer time：≤3s
Protection function: under-voltage, over-voltage, phase detection
Standard: IEC 60947-2
1. Product Overview
2.Function
a、CB class ATS come true Two input One output
b、Removale Auxiliary alarm and closing auxiliary
c、Complete function,smart
d、Parameter can set,remote communication operatione、Full bakelite shell, high safety factor, external zero fly arc
f、The compact design of anti-jamming performance
g、Small size, appearance patent products, with isolation.
h、 Multi-function operating handle, the operating handle can be used in changeover,also used to fasten the screw, easy installation.
3. Key Specifications
| Parameter | Details |
|---|---|
| Model | LMQ3-W1/4P |
| Poles | 4P (3-phase + neutral) |
| Rated Current (In) | 63-630A |
| Rated Operational Voltage (Ue) | AC 400V / 50Hz |
| Rated Insulation Voltage (Ui) | 690V |
| Short-Circuit Breaking Capacity | 25kA / 400V |
| Switching Class | CB-class (with built-in circuit breakers) |
| Control Modes | Automatic, Manual (with dedicated control buttons) |
| Controller Features | Digital LED display, real-time status monitoring, configurable transfer delays, fault indicators |
| Mounting Type | Panel mount (compact integrated assembly) |
| Enclosure Rating | IP20 (front face) |
| Compliance Standards | IEC 60947-6-1, GB/T 14048.11 |
| Operating Temperature | -10°C ~ +60°C |
| Mechanical Life | ≥8,000 operations |
4. Core Features
✅ CB-Class Integrated Design: Combines molded case circuit breakers, ATS switching mechanism, and digital controller in one compact unit, eliminating separate component installation.
✅ Digital LED Display & Monitoring: Built-in LED screen shows real-time system status, voltage, and fault codes for at-a-glance visibility.
✅ Dedicated Control Buttons: Manual/Auto, Main/Off/Emergency buttons allow direct control and mode selection for operation and maintenance.
✅ Fail-Safe Mechanical Interlock: Prevents simultaneous connection of both power sources, eliminating cross-connection risks and ensuring safety compliance.
✅ Auto/Manual Operation: Seamless automatic switching between mains and generator power, plus manual override for testing, maintenance, or emergency use.
✅ Configurable Transfer Logic: Adjustable transfer delays and voltage thresholds to match specific generator and mains power system requirements.
✅ Terminal Block for Integration: Top-mounted terminal block allows easy connection to external controllers or building management systems (BMS).
✅ Robust Construction: Heavy-duty housing and high-quality contacts ensure reliable performance in demanding commercial and industrial environments.
5. Applications
- Small to medium commercial building backup power systems
- Industrial facility critical load protection
- Small data center and server room power distribution
- Retail and office building emergency power
- Generator rental and portable power units
- Remote site and off-grid power systems
6. Why Choose LVMA LMQ3-250/4P ATS?
- All-In-One CB-Class Solution: Integrated ATS with built-in circuit breakers reduces installation complexity and wiring errors, providing both switching and overcurrent protection.
- Real-Time Monitoring: Digital LED display simplifies system monitoring and troubleshooting, reducing downtime.
- Flexible Control: Dedicated buttons for manual/auto modes and source selection offer full control for operation, maintenance, and emergencies.
- Fail-Safe Design: Mechanical interlock ensures only one power source is connected at a time, eliminating cross-connection risks.
- Compact & Space-Saving: Integrated design minimizes panel space usage, making it ideal for installations with limited room.
- Cost-Effective Performance: All-in-one unit offers CB-class ATS functionality with integrated control at a competitive price point for 250A applications.
7. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and controller configuration instructions.
- Contact our engineering team for custom settings or OEM solutions for large-scale ATS projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
1. Product Overview
2.Function
a、CB class ATS come true Two input One output
b、Removale Auxiliary alarm and closing auxiliary
c、Complete function,smart
d、Parameter can set,remote communication operatione、Full bakelite shell, high safety factor, external zero fly arc
f、The compact design of anti-jamming performance
g、Small size, appearance patent products, with isolation.
h、 Multi-function operating handle, the operating handle can be used in changeover,also used to fasten the screw, easy installation.
3. Key Specifications
| Parameter | Details |
|---|---|
| Model | LMQ3-W1/4P |
| Poles | 4P (3-phase + neutral) |
| Rated Current (In) | 63-630A |
| Rated Operational Voltage (Ue) | AC 400V / 50Hz |
| Rated Insulation Voltage (Ui) | 690V |
| Short-Circuit Breaking Capacity | 25kA / 400V |
| Switching Class | CB-class (with built-in circuit breakers) |
| Control Modes | Automatic, Manual (with dedicated control buttons) |
| Controller Features | Digital LED display, real-time status monitoring, configurable transfer delays, fault indicators |
| Mounting Type | Panel mount (compact integrated assembly) |
| Enclosure Rating | IP20 (front face) |
| Compliance Standards | IEC 60947-6-1, GB/T 14048.11 |
| Operating Temperature | -10°C ~ +60°C |
| Mechanical Life | ≥8,000 operations |
4. Core Features
✅ CB-Class Integrated Design: Combines molded case circuit breakers, ATS switching mechanism, and digital controller in one compact unit, eliminating separate component installation.
✅ Digital LED Display & Monitoring: Built-in LED screen shows real-time system status, voltage, and fault codes for at-a-glance visibility.
✅ Dedicated Control Buttons: Manual/Auto, Main/Off/Emergency buttons allow direct control and mode selection for operation and maintenance.
✅ Fail-Safe Mechanical Interlock: Prevents simultaneous connection of both power sources, eliminating cross-connection risks and ensuring safety compliance.
✅ Auto/Manual Operation: Seamless automatic switching between mains and generator power, plus manual override for testing, maintenance, or emergency use.
✅ Configurable Transfer Logic: Adjustable transfer delays and voltage thresholds to match specific generator and mains power system requirements.
✅ Terminal Block for Integration: Top-mounted terminal block allows easy connection to external controllers or building management systems (BMS).
✅ Robust Construction: Heavy-duty housing and high-quality contacts ensure reliable performance in demanding commercial and industrial environments.
5. Applications
- Small to medium commercial building backup power systems
- Industrial facility critical load protection
- Small data center and server room power distribution
- Retail and office building emergency power
- Generator rental and portable power units
- Remote site and off-grid power systems
6. Why Choose LVMA LMQ3-250/4P ATS?
- All-In-One CB-Class Solution: Integrated ATS with built-in circuit breakers reduces installation complexity and wiring errors, providing both switching and overcurrent protection.
- Real-Time Monitoring: Digital LED display simplifies system monitoring and troubleshooting, reducing downtime.
- Flexible Control: Dedicated buttons for manual/auto modes and source selection offer full control for operation, maintenance, and emergencies.
- Fail-Safe Design: Mechanical interlock ensures only one power source is connected at a time, eliminating cross-connection risks.
- Compact & Space-Saving: Integrated design minimizes panel space usage, making it ideal for installations with limited room.
- Cost-Effective Performance: All-in-one unit offers CB-class ATS functionality with integrated control at a competitive price point for 250A applications.
7. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and controller configuration instructions.
- Contact our engineering team for custom settings or OEM solutions for large-scale ATS projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
Related Products
Contact Us
Have questions about our products or services? Our team is here to help you with any inquiries.