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BY08II-40 SPD Class T2 Imax 40KA Surge Protective Device

The BY08II-40 Series T2 AC Surge Protective Device (SPD) provides reliable surge protection with configurations of 1P, 2P, 3P, 4P, 1P+NPE, and 3P+NPE. It supports operating voltages of 150V, 275V, 320V, 385V, and 440V, and features discharge current ratings ranging from 20kA to 40kA.

    product detail

    Product Overview

    • The BY08II-40 Series T2 AC SPD Surge Protective Device is a high-performance device designed to safeguard electrical systems from surges and transient overvoltages. Equipped with high-energy MOV (Metal Oxide Varistor) technology, it ensures excellent surge absorption and reliable protection for sensitive equipment and installations.
    • This surge protector is available in various configurations, including 1P, 2P, 3P, 4P, 1P+NPE, and 3P+NPE, offering flexibility for different wiring systems and applications. It supports a wide range of operating voltages, including 150V, 275V, 320V, 385V, and 440V, making it suitable for residential, commercial, and industrial environments.
    • The BY08II-40 series SPD is designed to handle discharge currents from 20kA to 40kA, providing robust protection against lightning strikes and power surges. Its high discharge capacity ensures that it can withstand and dissipate significant energy levels, maintaining the integrity of connected devices and systems.
    • A standout feature of this series is its modular design with replaceable modules. This allows for quick and easy maintenance, as damaged modules can be replaced without dismantling the entire device. This feature enhances the device's durability and cost-effectiveness over time.
    • With a compact design, the surge protector is easy to install and integrates seamlessly into existing electrical systems. It is particularly well-suited for protecting equipment such as distribution boards, industrial control systems, telecommunications devices, and household appliances.
    • In addition to its high-energy MOV technology, the BY08II-40 series SPD is engineered for durability and reliability, meeting international standards for surge protection devices. Its modular configuration also allows for easy replacement and maintenance, ensuring long-term performance and efficiency.

    Technical Parameters

    No. of Poles 1P 2P 3P 4P 1P+N 3P+N
    Protective Elements High Energy MOV  High Energy MOV and GDT
    Maximum Continuous Operating Voltage (L-N) Uc 150V 275V 320V 385V 440V
    Maximum Continuous Operating Voltage (N-PE) Uc 255V
    Nominal Discharge Current (8/20µs) (L-N)/(N-PE) In 20kA
    Maximum Discharge Current (8/20µs) (L-N)/(N-PE) Imax 40kA
    Voltage Protection Level (L-N)/(N-PE) Up 0.8kV/1.5kV 1.3kV/1.5kV 1.5kV/1.5kV 1.8kV/1.5kV 2.0kV/1.5kV
    Voltage Protection Level 5kA Up 0.6kV 1.0kV 1.2kV 1.4kV 1.6kV
    Response Time (L-N)/(N-PE) tA ≤25ns/≤100ns

    Dimensions

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