1. Product Overview

2. Key Features

• Type 2 Protection: Designed for secondary surge protection in low-voltage AC distribution systems, complying with international safety standards.
• High Surge Capacity: Rated at 40kA maximum discharge current (Imax) and 20kA nominal discharge current (In) (8/20μs waveform), handling moderate to severe surge events.
• Low Protection Level: Voltage protection level (Up) ≤ 1.8kV, limiting transient overvoltages to safe levels for connected equipment.
• Wide Operating Voltage: 385V AC maximum continuous operating voltage (Uc), compatible with 380/400V three-phase power systems.
• Visual Status Indicator: Green window indicates normal operation; red window signals module failure or end-of-life for quick maintenance checks.
• Pluggable Modules: Individual modules can be replaced without removing the entire SPD from the panel, reducing downtime and maintenance costs.
• DIN Rail Mounting: Standard 35mm DIN rail design for easy installation in distribution boxes and control panels.
• Robust Construction: High-quality components ensure long service life and reliable performance in harsh environments.

3. Technical Specifications

4. Working Principle

1. Under normal operating conditions, the MOVs act as high-impedance components, allowing no current to pass through the SPD.
2. When a surge or transient overvoltage occurs, the MOVs instantly switch to a low-impedance state, diverting the excess current to the ground.
3. The SPD limits the residual voltage (Up) to ≤1.8kV, preventing damage to downstream electrical equipment.
4. After the surge event, the MOVs return to their high-impedance state, resuming normal system operation.

5. Applications

• Commercial Buildings: Offices, shopping malls, hotels, and data centers.
• Industrial Facilities: Manufacturing plants, automation systems, and power distribution panels.
• Residential Installations: Homes, apartments, and small businesses.
• Power Distribution Systems: Low-voltage switchgear, distribution boxes, and control panels.
• Renewable Energy Systems: Solar panel installations, wind turbines, and auxiliary power systems.

6. Installation Instructions

1. Mounting: Install the SPD on a standard 35mm DIN rail inside the distribution panel.
2. Wiring: Connect the 3 live phases (L1, L2, L3) to the SPD’s L terminals, the neutral line to the N terminal, and the ground wire to the SPD’s ground terminal.
3. Safety Check: Ensure all connections are tight and comply with local electrical codes. Verify the visual status indicator shows green before energizing the system.
4. Maintenance: Periodically inspect the status indicator. If the window turns red, replace the affected module immediately.

7. Why Choose LVMA LMV1-C40 SPD?

• Cost-Effective Protection: Delivers high surge handling capacity at a competitive price point.
• Easy Maintenance: Pluggable modules reduce replacement time and service costs.
• Reliable Performance: Tested to meet international standards, ensuring consistent protection.
• Compact Design: Fits seamlessly into standard distribution panels without requiring extra space.
• Trusted Brand: LVMA is a leading manufacturer of low-voltage electrical components, known for quality and durability.

8. Technical Documents & Support

• Download the full datasheet for detailed specifications, wiring diagrams, and installation instructions.
• Contact our engineering team for custom pole configurations or OEM/ODM solutions for large-scale projects.
• Request a quote with your project details for bulk pricing, lead times, and compliance certifications.