LMQ4-125X Automatic Transfer Switch Solar ATS
LMQ4-125X Automatic Transfer Switch Solar ATS
Model: LMQ4-125X
Rated Voltage: AC400V
Coil Voltage: AC230V
Insulation Voltage: AC690V
Class: PC
Number of Poles: 2P, 3P, 4P
Electrical Life: 2000 Operations
Mechanical Life: 10,000 Operations
Rated Short-Circuit Current: 50kA
Rated Impulse Withstand Voltage: 8kV
Transfer Time: <50ms
Model: LMQ4-125X
Rated Voltage: AC400V
Coil Voltage: AC230V
Insulation Voltage: AC690V
Class: PC
Number of Poles: 2P, 3P, 4P
Electrical Life: 2000 Operations
Mechanical Life: 10,000 Operations
Rated Short-Circuit Current: 50kA
Rated Impulse Withstand Voltage: 8kV
Transfer Time: <50ms
1. Product Overview
2. Key Specifications
| Parameter | Details |
|---|---|
| Model | LMQ4-125X/4P |
| Poles | 2P / 3P / 4P |
| Rated Current (In) | 16-125A |
| Rated Operational Voltage (Ue) | AC 220V / 400V (50/60Hz) |
| Mounting Type | 35mm DIN rail mount |
| Control Modes | Automatic, Manual |
| Terminals | Solar Power (A), Grid Power (B), Load Output |
| Control Interface | Manual rotary switch, auto/manual toggle, LED status indicators (A/B) |
| Control Power Supply | AC220V passive input (no external power required for basic operation) |
| Enclosure Rating | IP20 |
| Compliance Standards | CE, RoHS, IEC 60947-6-1 |
| Operating Temperature | -10°C ~ +60°C |
| Mechanical Life | ≥10,000 operations |
3. Core Features
✅ Solar-Grid Specific Design: Dedicated terminals and control logic optimized for switching between solar (PV) power and mains/grid power in hybrid systems.
✅ DIN Rail Compact Form Factor: Space-saving design fits standard 35mm DIN rails, ideal for installation in solar combiner boxes and distribution panels.
✅ Auto/Manual Operation: Toggle between automatic power switching (based on solar/grid status) and manual control for maintenance or testing.
✅ LED Status Indicators: Red/green LEDs show power presence for both solar and grid sources, providing at-a-glance system visibility.
✅ No External Power Required: Passive AC220V control input eliminates the need for external power supplies, simplifying installation in remote solar setups.
✅ Fail-Safe Mechanical Interlock: Prevents simultaneous connection of both power sources, eliminating cross-connection risks.
✅ Clear Terminal Markings: Color-coded phase terminals (R/S/T/N) and dedicated “Normal Power A (Solar)” / “Reverse Power B (Grid)” labels simplify wiring.
✅ RoHS & CE Certified: Meets international safety and environmental standards for global solar applications.
4. Applications
- Residential hybrid solar power systems (grid-tie with backup)
- Small commercial solar installations with grid backup
- Off-grid solar systems with generator/grid backup
- Solar combiner boxes and inverter-side power switching
- Remote site solar power systems with mains backup
- Telecom tower and small industrial solar backup systems
5. Why Choose LVMA LMQ4-125X/4P Solar ATS?
- Solar-Grid Optimized: Purpose-built for solar hybrid systems, with dedicated terminals and logic for seamless solar-to-grid switching.
- Compact DIN Rail Design: Space-saving form factor fits standard solar combiner boxes and distribution panels, reducing installation footprint.
- Easy Installation & Operation: Clear terminal markings, manual rotary switch, and LED indicators simplify setup and maintenance.
- No External Power Required: Passive control input eliminates the need for additional power supplies, ideal for remote solar installations.
- Cost-Effective Solar Backup: Affordable, reliable ATS solution for residential and small commercial hybrid solar systems.
- Compliant & Certified: Meets CE/RoHS standards, ensuring safety and performance for global solar applications.
6. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and solar system integration guidelines.
- Contact our engineering team for custom configurations or OEM solutions for large-scale solar 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 | LMQ4-125X/4P |
| Poles | 2P / 3P / 4P |
| Rated Current (In) | 16-125A |
| Rated Operational Voltage (Ue) | AC 220V / 400V (50/60Hz) |
| Mounting Type | 35mm DIN rail mount |
| Control Modes | Automatic, Manual |
| Terminals | Solar Power (A), Grid Power (B), Load Output |
| Control Interface | Manual rotary switch, auto/manual toggle, LED status indicators (A/B) |
| Control Power Supply | AC220V passive input (no external power required for basic operation) |
| Enclosure Rating | IP20 |
| Compliance Standards | CE, RoHS, IEC 60947-6-1 |
| Operating Temperature | -10°C ~ +60°C |
| Mechanical Life | ≥10,000 operations |
3. Core Features
✅ Solar-Grid Specific Design: Dedicated terminals and control logic optimized for switching between solar (PV) power and mains/grid power in hybrid systems.
✅ DIN Rail Compact Form Factor: Space-saving design fits standard 35mm DIN rails, ideal for installation in solar combiner boxes and distribution panels.
✅ Auto/Manual Operation: Toggle between automatic power switching (based on solar/grid status) and manual control for maintenance or testing.
✅ LED Status Indicators: Red/green LEDs show power presence for both solar and grid sources, providing at-a-glance system visibility.
✅ No External Power Required: Passive AC220V control input eliminates the need for external power supplies, simplifying installation in remote solar setups.
✅ Fail-Safe Mechanical Interlock: Prevents simultaneous connection of both power sources, eliminating cross-connection risks.
✅ Clear Terminal Markings: Color-coded phase terminals (R/S/T/N) and dedicated “Normal Power A (Solar)” / “Reverse Power B (Grid)” labels simplify wiring.
✅ RoHS & CE Certified: Meets international safety and environmental standards for global solar applications.
4. Applications
- Residential hybrid solar power systems (grid-tie with backup)
- Small commercial solar installations with grid backup
- Off-grid solar systems with generator/grid backup
- Solar combiner boxes and inverter-side power switching
- Remote site solar power systems with mains backup
- Telecom tower and small industrial solar backup systems
5. Why Choose LVMA LMQ4-125X/4P Solar ATS?
- Solar-Grid Optimized: Purpose-built for solar hybrid systems, with dedicated terminals and logic for seamless solar-to-grid switching.
- Compact DIN Rail Design: Space-saving form factor fits standard solar combiner boxes and distribution panels, reducing installation footprint.
- Easy Installation & Operation: Clear terminal markings, manual rotary switch, and LED indicators simplify setup and maintenance.
- No External Power Required: Passive control input eliminates the need for additional power supplies, ideal for remote solar installations.
- Cost-Effective Solar Backup: Affordable, reliable ATS solution for residential and small commercial hybrid solar systems.
- Compliant & Certified: Meets CE/RoHS standards, ensuring safety and performance for global solar applications.
6. Technical Documents & Support
- Download the full datasheet for detailed specifications, wiring diagrams, and solar system integration guidelines.
- Contact our engineering team for custom configurations or OEM solutions for large-scale solar ATS projects.
- Request a quote with your project details for bulk pricing, lead times, and compliance certifications.
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