M1L385-40 II Surge Protection Device (SPD) for Power Distribution - 40kA Surge Current, 230V/400VAC, Remote Alarm Port, DIN Rail Installation, IP20, Class C Protection
Product Description
The M1L385-40 II Surge Protection Device (SPD) is a highly reliable electrical protection system designed to safeguard equipment from overvoltage conditions and power surges in low-voltage distributing power systems. This device is specifically engineered for applications where both over-current and over-heat protection are essential, offering robust protection for sensitive electrical systems and electronic devices.
The M1L385-40 II model complies with Class C protection standards and is capable of withstanding surge currents up to 40kA (8/20μs test), making it suitable for use in power distribution systems and equipment vulnerable to transient surges. It is equipped with a remote alarm port (no-active contact), providing users with real-time monitoring capabilities and alerts for potential faults or failures, thus ensuring continued system integrity and reducing downtime.
The device is designed with an integrated base for easy installation and maintenance, typically mounted on a 35mm DIN rail, which is a common practice for equipment switchboards. This installation method ensures that the SPD can be securely fixed within the system without compromising the overall efficiency of the electrical setup. The device also supports flexible wiring sizes ranging from 1.5 mm² to 25 mm² for flexible connections, and up to 35 mm² for rigid connections, accommodating various installation requirements.
Key Specifications
Model: M1L385-40 II (3P+N)
Rated Working Voltage:
230V/400VAC (L-N / N-PE)
Rated Frequency: 48Hz to 62Hz
Maximum Operating Voltage:
385V (L-N) / 255V (N-PE)
Nominal Discharge Current (In):
20kA (L-N; N-PE)
Maximum Discharge Current (Imax):
40kA (L-N; N-PE)
Voltage Protection Level (Up):
1.8kV (L-N) / 1.0kV (N-PE)
Temporary Overvoltage (TOV) Characteristics:
5s at 385V (L-N) / 400V for 5 seconds
1200V (L-PE) / 200ms for failure characteristics
Short-Circuit Current:
25kArms
Size for Terminal Connection:
1.5mm² to 25mm² (flexible) / 35mm² (rigid)
Maximum Current for Alarm Port:
250V / 0.5A (AC) 0.1A (DC); 125V / 1A (AC) 0.5A (DC)
Shell Fire-Retardant Grade:
UL94 V-0
IP Grade:
IP20
Alarm Monitoring System
The M1L385-40 II SPD features a remote alarm port that provides real-time feedback regarding the operational status of the device. The alarm system is activated through no-active contact and helps in maintaining operational efficiency by alerting users when maintenance or replacement is needed, ensuring that equipment downtime is minimized. The remote alarm function also makes it easier to integrate into larger monitoring systems, improving oversight for critical infrastructure.
Installation Instructions
The device is designed for installation by authorized professionals only. It is typically mounted on a 35mm DIN rail inside an equipment switchboard. The SPD should be wired according to the following instructions:
Connection method: A common parallel connection can be used for wiring, with a maximum 16mm² multi-strand copper wire. The total length of the connection lead should not exceed 0.5 meters.
The alarm connection terminal is located at the bottom of the arrester. For remote monitoring, users should draw the wiring plugs and insert leads of the alarm into the appropriate holes in the wiring plugs, then insert the plugs into their original position and tighten the screws.
By following the instructions provided, the device can be integrated into the electrical system, providing robust protection against power surges and ensuring continuous, reliable operation.
Benefits of M1L385-40 II Surge Protection Device:
High Surge Current Capacity: With a maximum discharge current of 40kA, this SPD can handle significant power surges and transient voltages, providing excellent protection for sensitive equipment.
Remote Monitoring Capability: The built-in remote alarm port allows for easy monitoring and maintenance, ensuring that any issues can be quickly addressed.
User-friendly Installation: The DIN rail mounting system simplifies installation and makes it easy to integrate into existing electrical infrastructure.
Wide Voltage Protection Range: Capable of withstanding voltages up to 385V (L-N) and 255V (N-PE), making it suitable for a variety of applications in power distribution systems.
Durable and Safe: The fire-retardant shell (UL94 V-0) and IP20 protection ensure that the device remains safe and durable in various operating environments.
Application Areas:
Power Distribution Systems: Protects power systems from transient overvoltage conditions that could damage sensitive components.
Telecommunications Equipment: Ensures the safety of telecom gear by preventing surges from impacting performance.
Industrial Electrical Systems: Safeguards industrial machinery and equipment from electrical faults that could cause downtime or damage.
Renewable Energy Systems: Protects solar, wind, and other renewable energy systems from electrical surges caused by external factors.
Summary
The M1L385-40 II Surge Protection Device offers highly effective protection for electrical systems and sensitive equipment against overvoltage, power surges, and electrical faults. With its high surge current capacity, remote monitoring features, and easy installation via DIN rail mounting, it is a reliable choice for industrial, telecommunications, and power distribution applications.
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M1L385-40 II Surge Protection Device (SPD) for Power Distribution - 40kA Surge Current, 230V/400VAC, Remote Alarm Port, DIN Rail Installation, IP20, Images
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