Communications equipment connected to active networks can suffer severe damage if exposed to excessive voltages. In any system, the sources of excessive voltages can be summarised as follows:

- Nature: Lightning occurring during thunderstorms

- Inductive coupling caused by industrial equipment switching and triggering high voltages

- Accidental contact between communication and power lines

- Electrostatic discharge

Utilising components from the world’s biggest Surge Arrestor manufacturer, Siemens, we have produced a device to offer optimal protection in these situations. The EM-HVS3 Telephone Line Lightning Suppressor incorporates a number of specialised gas-filled surge arrestors.

The EM-HVS3 will quickly and safely limit surge voltages to non-critical levels. It protects against voltage rises on both wires and also individually, reliably discharging excess voltage to earth.

This device is designed to reduce the severity of damage caused by a voltage surge. While it is not possible to stop a direct hit from a lightning strike, the EM-HVS3 utilises the most current technology available to protect your communication lines and minimise damage.