Weidmüller Surge arrester s

Overvoltage protection with measurement, control, and regulation functions, without signaling function or display. The protection covers analog signals and current loops (CL - Current Loop), including signals from current loops (analog measurements from encoders over long distances) such as 4...20 mA and 0...20 mA. It supports two-, three-, and four-wire configurations without a common reference potential, for example, in level measurement. It also accommodates signals from voltage transmitters (analog measurements of transmitters over short distances) like 0...10 V and PT 100, for example, in temperature measurement.

The device features a pluggable arrester that allows for interruption-free and impedance-neutral plugging or unplugging, and it is testable with the V-TEST instrument. Its space-saving design supports two analog signals and includes a ground-free PE connection to avoid potential differences. It complies with installation standard IEC 62305 (D1, C1, C2, and C3) and has an integrated PE foot that safely dissipates up to 20 kA (8/20 μs) and 2.5 kA (10/350 μs) to PE. The device also includes colored markings for voltage levels for quick identification in the control cabinet and features a safety function with a coding element for different voltage levels.