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

The device features a pluggable arrester, allowing interruption-free and impedance-neutral plugging or unplugging. It can be tested using 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). The integrated PE foot safely dissipates up to 20 kA (8/20 μs) and 2.5 kA (10/350 μs) to PE. Colored markings indicate voltage levels for quick identification in the control cabinet, and a coding element provides safety functions for different voltage levels.