Signal & Data SPDs
Data and signal lines are the back door for surges: a strike that never touches the power supply still destroys PLC cards, cameras, switches and transmitters through their cables. LPES signal and data SPDs protect Ethernet and PoE, RS-485 / Modbus and fieldbus, 4–20 mA instrument loops, telephone and xDSL, RF, antenna and CCTV coaxial lines, including intrinsically safe (Ex i) versions for hazardous areas.

