LMQ3-W1 MCCB ATS Automatic Transfer Switch 125~630A
LMQ3-W1 MCCB ATS Automatic Transfer Switch 125~630A
Frame grade: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: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. Technical Specifications
| Parameter | Specification |
|---|---|
| Model | LMQ3-250W1/4P |
| Rated Current | 125-630A |
| Poles | 4 Pole (4P) |
| Utilization Category | CB Class |
| Rated Operational Voltage | AC400V |
| Frequency | 50Hz / 60Hz |
| Standard Compliance | IEC 60947-6-1 |
| Operation Mode | Automatic / Manual Local Operation |
| Control Feature | Digital LED display, power status monitoring |
| Switching Object | Mains Supply ↔ Emergency Generator Supply |
| Mechanical Interlock | Built-in reliable interlock, prevents simultaneous closing of two sources |
| Mounting Method | Panel mounting inside low voltage switch cabinet |
3. Key Product Features
- Intelligent Digital Controller
Built-in digital display to visualize power status, voltage detection and fault indication. Supports adjustable switching delay to avoid frequent power switching.
- Safe CB Class Structure
CB-class ATS integrates overcurrent protection function. Built-in mechanical and electrical double interlock, strictly prohibits simultaneous connection of two power sources to prevent short-circuit accidents.
- Auto & Manual Dual Operation
Supports fully automatic unattended operation. Meanwhile, manual knob operation is available for maintenance and emergency debugging.
- Motorized Stable Driving Mechanism
High reliability motor drive system, low noise, long mechanical service life, stable transfer action under rated load.
- Clear Status Indication & External Signal Interface
Reserved multiple signal terminals: fault feedback, remote control, generator start signal, convenient for connection with PLC and building intelligent control systems.
- Integrated Compact Design
All-in-one modular structure, easy wiring and installation, saves cabinet space, simplifies low-voltage distribution cabinet layout.
4. Main Application Scenarios
- Commercial shopping malls, office buildings, hotels
- Hospitals, laboratories and other critical medical power supply occasions
- Data centers, server rooms, communication base stations
- Industrial factories, production lines requiring uninterrupted power
- Residential high-rise buildings, fire emergency power systems
- Infrastructure projects, backup generator matching systems
5. Installation & Operation Instructions
- Install the ATS vertically inside the low-voltage distribution cabinet, ensure sufficient heat dissipation space around the device.
- Connect Main power source to terminals 1,3,5,N; Emergency generator power source to terminals 2,4,6,N; load output connects to common load terminals.
- Set operation mode: AUTO mode for automatic power switching; MANUAL mode for on-site testing and maintenance.
- Adjust switching delay parameters according to generator startup requirements via the controller panel.
- Regular inspection: check wiring tightness, mechanical interlock function and controller display status.
6. FAQ
Q1: What is CB Class ATS?
Q2: Can this ATS automatically start the generator?
Q3: Is 3P version available for LMQ3 series?
Q4: Can this ATS be exported to global markets?
7. Why Choose LVMA LMQ3 Series ATS?
- LVMA professional low voltage electrical manufacturer, independent R&D for Automatic Transfer Switch products
- Strict factory full function testing, stable performance for long-term continuous operation
- Complete current range: 100A, 160A, 250A, 400A, 630A, 800A optional
- Support OEM custom logo, customized control logic for engineering projects
- Professional technical team provides distribution scheme support and after-sales service
1. Product Overview
2. Technical Specifications
| Parameter | Specification |
|---|---|
| Model | LMQ3-250W1/4P |
| Rated Current | 125-630A |
| Poles | 4 Pole (4P) |
| Utilization Category | CB Class |
| Rated Operational Voltage | AC400V |
| Frequency | 50Hz / 60Hz |
| Standard Compliance | IEC 60947-6-1 |
| Operation Mode | Automatic / Manual Local Operation |
| Control Feature | Digital LED display, power status monitoring |
| Switching Object | Mains Supply ↔ Emergency Generator Supply |
| Mechanical Interlock | Built-in reliable interlock, prevents simultaneous closing of two sources |
| Mounting Method | Panel mounting inside low voltage switch cabinet |
3. Key Product Features
- Intelligent Digital Controller
Built-in digital display to visualize power status, voltage detection and fault indication. Supports adjustable switching delay to avoid frequent power switching.
- Safe CB Class Structure
CB-class ATS integrates overcurrent protection function. Built-in mechanical and electrical double interlock, strictly prohibits simultaneous connection of two power sources to prevent short-circuit accidents.
- Auto & Manual Dual Operation
Supports fully automatic unattended operation. Meanwhile, manual knob operation is available for maintenance and emergency debugging.
- Motorized Stable Driving Mechanism
High reliability motor drive system, low noise, long mechanical service life, stable transfer action under rated load.
- Clear Status Indication & External Signal Interface
Reserved multiple signal terminals: fault feedback, remote control, generator start signal, convenient for connection with PLC and building intelligent control systems.
- Integrated Compact Design
All-in-one modular structure, easy wiring and installation, saves cabinet space, simplifies low-voltage distribution cabinet layout.
4. Main Application Scenarios
- Commercial shopping malls, office buildings, hotels
- Hospitals, laboratories and other critical medical power supply occasions
- Data centers, server rooms, communication base stations
- Industrial factories, production lines requiring uninterrupted power
- Residential high-rise buildings, fire emergency power systems
- Infrastructure projects, backup generator matching systems
5. Installation & Operation Instructions
- Install the ATS vertically inside the low-voltage distribution cabinet, ensure sufficient heat dissipation space around the device.
- Connect Main power source to terminals 1,3,5,N; Emergency generator power source to terminals 2,4,6,N; load output connects to common load terminals.
- Set operation mode: AUTO mode for automatic power switching; MANUAL mode for on-site testing and maintenance.
- Adjust switching delay parameters according to generator startup requirements via the controller panel.
- Regular inspection: check wiring tightness, mechanical interlock function and controller display status.
6. FAQ
Q1: What is CB Class ATS?
Q2: Can this ATS automatically start the generator?
Q3: Is 3P version available for LMQ3 series?
Q4: Can this ATS be exported to global markets?
7. Why Choose LVMA LMQ3 Series ATS?
- LVMA professional low voltage electrical manufacturer, independent R&D for Automatic Transfer Switch products
- Strict factory full function testing, stable performance for long-term continuous operation
- Complete current range: 100A, 160A, 250A, 400A, 630A, 800A optional
- Support OEM custom logo, customized control logic for engineering projects
- Professional technical team provides distribution scheme support and after-sales service
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