LMGQF-100ATS 4 Way Automatic Transfer Switch | 100A ATS Voltage Protection
LMGQF-100ATS 4 Way Automatic Transfer Switch | 100A ATS Voltage Protection
The LMGQF-100ATS is a 100A four-way single-phase intelligent automatic transfer switch (ATS) designed for 4 independent power circuits. Equipped with multi-digit digital display to real-time monitor input/output voltage and load current, it supports automatic switching between mains power and backup generator power. Built-in overvoltage, undervoltage, overload and fault alarm functions, it cuts both live and neutral lines for full isolation, standard DIN rail mounting, widely used in villas, rental apartments, commercial buildings and small solar off-grid systems for multi-circuit dual power automatic switching.
The LMGQF-100ATS is a 100A four-way single-phase intelligent automatic transfer switch (ATS) designed for 4 independent power circuits. Equipped with multi-digit digital display to real-time monitor input/output voltage and load current, it supports automatic switching between mains power and backup generator power. Built-in overvoltage, undervoltage, overload and fault alarm functions, it cuts both live and neutral lines for full isolation, standard DIN rail mounting, widely used in villas, rental apartments, commercial buildings and small solar off-grid systems for multi-circuit dual power automatic switching.
1. Product Overview
The LMGQF-100ATS 4-way automatic transfer switch is a new-generation multi-circuit dual power intelligent switching device with a rated current of 100A, independently controlling four separate single-phase power loops at the same time. It can automatically switch the load between municipal mains power and backup generator/solar power source without manual operation.
Equipped with a full digital LED display screen, users can view real-time voltage of 4 groups of input power, output voltage and load current at a glance. Integrated multiple safety protection and buzzer fault alarm, it cuts both Live (L) and Neutral (N) lines to realize complete circuit isolation. Modular DIN rail structure simplifies cabinet layout, ideal for multi-room rental housing, villa distribution systems, small commercial shops, solar off-grid power stations and equipment backup power distribution control.
2. Core Product Features
1. Independent 4 Separate Power Circuits
2. Real-Time Multi-Parameter Digital Display
- Four groups of input power supply voltage
- Total output load current
- Working temperature & running time
- Real-time fault code prompt when abnormal
Intuitive visual monitoring, no extra external voltmeter/ammeter required.
3. Auto Switch Between Mains & Backup Power
- When mains power fails / voltage out of range, automatically switch to backup generator/solar power within preset delay time
- Automatically switch back to mains power and disconnect backup supply once mains recovers stable voltage
Adjustable switching delay time via front navigation buttons to avoid frequent power bounce.
4. All-Round Electrical Safety Protection
- Overvoltage / Undervoltage protection (custom threshold adjustable)
- Overload overcurrent protection with automatic load cut-off
- Phase loss & power loss detection
- Over-temperature protection for internal components
- Complete isolation by cutting both L and N lines, no residual live wire hidden danger
5. Built-in Buzzer Fault Alarm & Signal Output
- Onboard loud buzzer: automatically sound alarm when power supply fault, overload or over-temperature occurs, mute button available to stop alarm sound
- NC/NO COM auxiliary signal output terminals, can connect external alarm light, PLC or remote monitoring host to upload fault signal
6. Easy Parameter Setting & Manual Operation
7. Standard DIN Rail Modular Installation
3. Working Conditions
- Ambient operating temperature: -10℃ ~ +55℃
- Protection Grade: IP20, only installed inside enclosed indoor distribution cabinets; not suitable for outdoor splash, high humidity and heavy salt fog environments
- Surrounding atmosphere: Free of corrosive gas, flammable dust and conductive metal particles
- Altitude: Normal rated performance below 2000 meters above sea level
- Vibration resistance: Withstand mild mechanical vibration of indoor power rooms; avoid continuous strong impact
- Humidity: Relative humidity ≤85%, no condensation inside the ATS housing
4. Unified Technical Specifications
| Parameter | Unified Specification for LMGQF-100ATS |
|---|---|
| Model | LMGQF-100ATS-1Z 4 Way Automatic Transfer Switch |
| Rated Current | 100A |
| Controlled Circuits | 4 independent single-phase L/N channels |
| Rated Operating Voltage | AC 230V 50Hz Single Phase |
| Switching Mode | Auto transfer between mains & backup generator/solar power |
| Display Function | Digital display of 4-channel input voltage, output current, temperature, fault code |
| Protection Functions | Overvoltage, undervoltage, overload, over-temperature, power loss protection |
| Safety Design | Cut both Live L & Neutral N lines for full isolation |
| Alarm System | Built-in buzzer + NC/NO auxiliary fault signal output |
| Adjustment Function | Custom switching delay, adjustable voltage protection thresholds |
| Manual Control | Independent ON/OFF switch for each of the 4 circuits |
| Mounting Method | Standard 35mm DIN rail modular installation |
| Housing Material | High flame-retardant insulating engineering plastic |
| Auxiliary Terminal | COM / NO / NC fault signal relay output |
5. Typical Applications
- Multi-unit rental apartment four-circuit dual power centralized control cabinet
- Villa multi-room independent power supply automatic switching system
- Small commercial shops, office multi-area mains-generator backup power distribution
- Household solar off-grid / grid-tied multi-circuit power management
- Small industrial equipment, water pump group backup power automatic switching
- Community public lighting, elevator auxiliary dual power control panels
6. Frequently Asked Questions (FAQ)
1. What does “4 Way” mean for this ATS?
2. Can this ATS work with solar power as backup supply?
3. What is the function of cutting both L and N lines?
4. What is the auxiliary COM/NO/NC terminal used for?
5. Can I adjust the automatic switching delay time?
6. Is outdoor installation allowed?
7. Technical documentation and support
Download full datasheets including complete specs, wiring schematics and selection guides.
Reach out to our technical team for project-specific customization and OEM/ODM service.
Submit a project inquiry to receive bulk pricing, production lead times and relevant compliance certificates.
1. Product Overview
The LMGQF-100ATS 4-way automatic transfer switch is a new-generation multi-circuit dual power intelligent switching device with a rated current of 100A, independently controlling four separate single-phase power loops at the same time. It can automatically switch the load between municipal mains power and backup generator/solar power source without manual operation.
Equipped with a full digital LED display screen, users can view real-time voltage of 4 groups of input power, output voltage and load current at a glance. Integrated multiple safety protection and buzzer fault alarm, it cuts both Live (L) and Neutral (N) lines to realize complete circuit isolation. Modular DIN rail structure simplifies cabinet layout, ideal for multi-room rental housing, villa distribution systems, small commercial shops, solar off-grid power stations and equipment backup power distribution control.
2. Core Product Features
1. Independent 4 Separate Power Circuits
2. Real-Time Multi-Parameter Digital Display
- Four groups of input power supply voltage
- Total output load current
- Working temperature & running time
- Real-time fault code prompt when abnormal
Intuitive visual monitoring, no extra external voltmeter/ammeter required.
3. Auto Switch Between Mains & Backup Power
- When mains power fails / voltage out of range, automatically switch to backup generator/solar power within preset delay time
- Automatically switch back to mains power and disconnect backup supply once mains recovers stable voltage
Adjustable switching delay time via front navigation buttons to avoid frequent power bounce.
4. All-Round Electrical Safety Protection
- Overvoltage / Undervoltage protection (custom threshold adjustable)
- Overload overcurrent protection with automatic load cut-off
- Phase loss & power loss detection
- Over-temperature protection for internal components
- Complete isolation by cutting both L and N lines, no residual live wire hidden danger
5. Built-in Buzzer Fault Alarm & Signal Output
- Onboard loud buzzer: automatically sound alarm when power supply fault, overload or over-temperature occurs, mute button available to stop alarm sound
- NC/NO COM auxiliary signal output terminals, can connect external alarm light, PLC or remote monitoring host to upload fault signal
6. Easy Parameter Setting & Manual Operation
7. Standard DIN Rail Modular Installation
3. Working Conditions
- Ambient operating temperature: -10℃ ~ +55℃
- Protection Grade: IP20, only installed inside enclosed indoor distribution cabinets; not suitable for outdoor splash, high humidity and heavy salt fog environments
- Surrounding atmosphere: Free of corrosive gas, flammable dust and conductive metal particles
- Altitude: Normal rated performance below 2000 meters above sea level
- Vibration resistance: Withstand mild mechanical vibration of indoor power rooms; avoid continuous strong impact
- Humidity: Relative humidity ≤85%, no condensation inside the ATS housing
4. Unified Technical Specifications
| Parameter | Unified Specification for LMGQF-100ATS |
|---|---|
| Model | LMGQF-100ATS-1Z 4 Way Automatic Transfer Switch |
| Rated Current | 100A |
| Controlled Circuits | 4 independent single-phase L/N channels |
| Rated Operating Voltage | AC 230V 50Hz Single Phase |
| Switching Mode | Auto transfer between mains & backup generator/solar power |
| Display Function | Digital display of 4-channel input voltage, output current, temperature, fault code |
| Protection Functions | Overvoltage, undervoltage, overload, over-temperature, power loss protection |
| Safety Design | Cut both Live L & Neutral N lines for full isolation |
| Alarm System | Built-in buzzer + NC/NO auxiliary fault signal output |
| Adjustment Function | Custom switching delay, adjustable voltage protection thresholds |
| Manual Control | Independent ON/OFF switch for each of the 4 circuits |
| Mounting Method | Standard 35mm DIN rail modular installation |
| Housing Material | High flame-retardant insulating engineering plastic |
| Auxiliary Terminal | COM / NO / NC fault signal relay output |
5. Typical Applications
- Multi-unit rental apartment four-circuit dual power centralized control cabinet
- Villa multi-room independent power supply automatic switching system
- Small commercial shops, office multi-area mains-generator backup power distribution
- Household solar off-grid / grid-tied multi-circuit power management
- Small industrial equipment, water pump group backup power automatic switching
- Community public lighting, elevator auxiliary dual power control panels
6. Frequently Asked Questions (FAQ)
1. What does “4 Way” mean for this ATS?
2. Can this ATS work with solar power as backup supply?
3. What is the function of cutting both L and N lines?
4. What is the auxiliary COM/NO/NC terminal used for?
5. Can I adjust the automatic switching delay time?
6. Is outdoor installation allowed?
7. Technical documentation and support
Download full datasheets including complete specs, wiring schematics and selection guides.
Reach out to our technical team for project-specific customization and OEM/ODM service.
Submit a project inquiry to receive bulk pricing, production lead times and relevant compliance certificates.
Related Products
Contact Us
Have questions about our products or services? Our team is here to help you with any inquiries.