LMQ2CB MCCB ATS 1250A 4P CB Series Automatic Transfer Switch
LMQ2CB MCCB ATS 1250A 4P CB Series Automatic Transfer Switch
Frame Size:125、250、630、1250
Rated Operating Current Ie (A)：63 / 80 / 100 / 125 / 160 / 180 / 200 / 225 / 250 / 315 / 350 / 400 / 500 / 630/800/1000/1250
Rated Insulation Voltage Ui:800V
Rated Impulse Withstand Voltage Uimp:8kV
Rated Operating Voltage Ue:AC400V/50Hz
Transfer Time：<3.4s
Control Voltage：AC230V/50Hz
Frame Size:125、250、630、1250
Rated Operating Current Ie (A)：63 / 80 / 100 / 125 / 160 / 180 / 200 / 225 / 250 / 315 / 350 / 400 / 500 / 630/800/1000/1250
Rated Insulation Voltage Ui:800V
Rated Impulse Withstand Voltage Uimp:8kV
Rated Operating Voltage Ue:AC400V/50Hz
Transfer Time：<3.4s
Control Voltage：AC230V/50Hz
1. Product Overview
2. Key Specifications
| Parameter | Details |
|---|---|
| Model | LMQ2 |
| Poles | 4P (3-phase + neutral) |
| Rated Current (In) | 125-1250A |
| Rated Operational Voltage (Ue) | AC 400V / 50Hz |
| Rated Insulation Voltage (Ui) | AC 690V |
| Short-Circuit Breaking Capacity | 25kA / 35kA (at 400V) |
| Controller Type | Intelligent digital ATS controller with LED display |
| Control Modes | Automatic, Manual, Test |
| Switching Mechanism | Motorized, no-break transfer (suitable for non-sensitive loads) |
| Transfer Logic | Configurable voltage/frequency thresholds, delay times, generator start/stop control |
| Protection Functions | Overload, short-circuit (via built-in MCCBs) |
| Mounting Type | Panel mount (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 | ≥10,000 operations |
3. Core Features
✅ Complete ATS System: All-in-one assembly with two 4P MCCBs and intelligent controller, eliminating the need for separate components.
✅ Seamless Power Transfer: Automatically switches between mains and generator power within configurable delays, ensuring continuous power for critical loads.
✅ Built-In MCCB Protection: Integrated molded case circuit breakers provide overload and short-circuit protection for both power sources.
✅ Intelligent Digital Controller: LED display shows real-time voltage/frequency status, with configurable transfer logic and generator control.
✅ Multi-Mode Operation: Supports automatic, manual, and test modes for flexible control, maintenance, and system testing.
✅ Fail-Safe Design: Mechanical interlock prevents simultaneous connection of both power sources, eliminating cross-connection risks.
✅ User-Friendly Interface: Dedicated control buttons and LED indicators simplify operation, status monitoring, and troubleshooting.
✅ Robust Construction: Heavy-duty housing and high-quality components ensure reliable performance in demanding commercial and industrial environments.
4. Applications
- Commercial building backup power systems
- Industrial facility critical load protection
- Data center and server room power distribution
- Telecommunications tower and base station power systems
- Hospital and healthcare facility emergency power
- Mining and remote site power systems
- Generator rental and portable power units
5. Why Choose LVMA LMQ2 4P ATS?
- All-In-One Solution: Integrated ATS assembly with MCCBs and controller reduces installation complexity and wiring errors.
- Reliable Power Continuity: Seamless automatic transfer ensures uninterrupted power supply, minimizing downtime and equipment damage.
- Comprehensive Protection: Built-in MCCBs provide overload and short-circuit protection for both mains and generator circuits.
- Flexible Configuration: Configurable transfer delays, voltage thresholds, and generator control settings adapt to diverse system requirements.
- Fail-Safe Operation: Mechanical interlock prevents simultaneous source connection, ensuring safety and compliance with electrical codes.
- Easy Installation: Pre-assembled unit with standard mounting and wiring connections simplifies integration into new or existing systems.
6. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and configuration instructions.
- Contact our engineering team for custom current ratings 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. Key Specifications
| Parameter | Details |
|---|---|
| Model | LMQ2 |
| Poles | 4P (3-phase + neutral) |
| Rated Current (In) | 125-1250A |
| Rated Operational Voltage (Ue) | AC 400V / 50Hz |
| Rated Insulation Voltage (Ui) | AC 690V |
| Short-Circuit Breaking Capacity | 25kA / 35kA (at 400V) |
| Controller Type | Intelligent digital ATS controller with LED display |
| Control Modes | Automatic, Manual, Test |
| Switching Mechanism | Motorized, no-break transfer (suitable for non-sensitive loads) |
| Transfer Logic | Configurable voltage/frequency thresholds, delay times, generator start/stop control |
| Protection Functions | Overload, short-circuit (via built-in MCCBs) |
| Mounting Type | Panel mount (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 | ≥10,000 operations |
3. Core Features
✅ Complete ATS System: All-in-one assembly with two 4P MCCBs and intelligent controller, eliminating the need for separate components.
✅ Seamless Power Transfer: Automatically switches between mains and generator power within configurable delays, ensuring continuous power for critical loads.
✅ Built-In MCCB Protection: Integrated molded case circuit breakers provide overload and short-circuit protection for both power sources.
✅ Intelligent Digital Controller: LED display shows real-time voltage/frequency status, with configurable transfer logic and generator control.
✅ Multi-Mode Operation: Supports automatic, manual, and test modes for flexible control, maintenance, and system testing.
✅ Fail-Safe Design: Mechanical interlock prevents simultaneous connection of both power sources, eliminating cross-connection risks.
✅ User-Friendly Interface: Dedicated control buttons and LED indicators simplify operation, status monitoring, and troubleshooting.
✅ Robust Construction: Heavy-duty housing and high-quality components ensure reliable performance in demanding commercial and industrial environments.
4. Applications
- Commercial building backup power systems
- Industrial facility critical load protection
- Data center and server room power distribution
- Telecommunications tower and base station power systems
- Hospital and healthcare facility emergency power
- Mining and remote site power systems
- Generator rental and portable power units
5. Why Choose LVMA LMQ2 4P ATS?
- All-In-One Solution: Integrated ATS assembly with MCCBs and controller reduces installation complexity and wiring errors.
- Reliable Power Continuity: Seamless automatic transfer ensures uninterrupted power supply, minimizing downtime and equipment damage.
- Comprehensive Protection: Built-in MCCBs provide overload and short-circuit protection for both mains and generator circuits.
- Flexible Configuration: Configurable transfer delays, voltage thresholds, and generator control settings adapt to diverse system requirements.
- Fail-Safe Operation: Mechanical interlock prevents simultaneous source connection, ensuring safety and compliance with electrical codes.
- Easy Installation: Pre-assembled unit with standard mounting and wiring connections simplifies integration into new or existing systems.
6. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and configuration instructions.
- Contact our engineering team for custom current ratings or OEM solutions for large-scale ATS projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
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