Surge protection for current loops and EX ia signals

Analogue signal/current loop (CL) protection includes the following signals:

Signals from current loops (analogue measurements of sensors over long distances) 4 – 20 mA, 0 – 20 mA etc.
Two-wire, three-wire and four-wire, without a common reference potential
e.g. level indication signals from voltage sensors (analogue measurements of sensors over short distances) 0 – 10 V, PT 100 etc .; e.g. temperature measurement
Pluggable arrester, with interruption-free and impedance-neutral plug-in and pull-out
Can be tested with the V-TEST testing device
Version with floating-earth PE connection used to avoid differences in potential
Can be used in compliance with the IEC 62305 (D1, C1, C2 and C3) installation standard
Integrated PE foot safely discharges up to 20 kA (8/20 μs) and 2.5 kA (10/350 μs) to the PE
Colour coding of the voltage levels for fast identification on the panel
Safety function through coding elements for different voltage levels