Arresters For Protection Of Signal Systems have been specially developed to safeguard control lines, measurement value and communication data against lightning surge. As per Lighting protection zone concept of EN 62305 norms, these systems are specially designed for LPZ 0A(B)  1 areas. Arresters For Protection Of Signal Systems can protect equipments against both differential and common modes of surge as specified by IEC 61643-21 guideline. Offered products consist of necessary components like series impedance gas discharge tube and transils. These can be used under 6v to 170v voltage range. We suggest to use their UN=170V voltage based version for protecting telecommunication lines. Quality of these products has been verified on the basis of their service life, design, mechanism and performance.