How about using terminal blocks with surge overvoltage protection?
We recommend selecting terminal blocks through which sensitive data and communication lines pass with AG surge arrester features in order to protect systems against lightning and sudden overvoltage surges.
To protect 5v-12v-24v-48v-60v communication lines against sudden overvoltage surges, we can use RAYCAP SCL SERIES products. With options for 2-line and 1-line protection and the ability to activate in less than 1 ns, SCL Series terminal products provide C1/C2/C3 protection in the IEC 61643-21 category, offering you the safest protection for your sensitive automation projects.
For a more comprehensive review, you can download the datasheets.
