1. Standard: This product is designed according to national standard GB/T 18802.21-2016. It is accordance with the criterion of Low-voltage Surge Protective Devices-Part 21: Telecommunication and Signal Network Surge Protective Device(SPD)—–Performance Requirement and Test Method Requirement of National Standard.
2. Product structure: With good sealing, it is designed as module and 35mm din-rail mounting. Module can be plugged in and out on the live without affecting the normal transmission of signal line. Built in multi-level discharge pressure limiting circuit, it is with easy installation and maintenance.
Product Features: With features of low residual voltage, quick response, low transmission loss, large flow rate, long life, easy installation and wiring, simple maintenance, etc.
Application Scope:1) Industry control & petrochemical system: analog signal line, switch value signal line, dedicated communication line, data signal line, 485 signal line.
2) Security system: control signal line, communication signal line.
3) Other control system: telemetry line, remote control line, comunication line.
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