Telephone line surge arrester ATFONO
modular2-paircommon-differential mode

telephone line surge arrester
telephone line surge arrester
telephone line surge arrester
Add to favorites
Compare this product


for telephone lines
Other characteristics
modular, 2-pair, common-differential mode, DIN rail

130 V, 220 V, 270 V

Primary current

2,000 A, 8,000 A


Protection for telephone lines and also for the digital and analogical equipment connected to these lines (fax, modem, etc). Connects up to 2 pairs of lines that are very small in size. Both common and differential protection recommended for this type of line. With removable modules for replacement in the event of a breakdown or fault. The power supply is not interrupted when replacing the module. It has a radiofrequency receptor in order to carry out maintenance using only an emitter kit. Discharge takes place in an internal encapsulated element with no external flash. Quick response. Mechanical connection of conductors using screws, in order to absorb a higher amount of overvoltage. In normal conditions, it remains inactive without affecting line operation or producing any leakages. Certificated tests according to EN IEC 61643-21 Relevant standards: NF C 17102, UNE 21186, EN IEC 62305. Products compliant with EC requirements.


Other Aplicaciones Tecnológicas, S.A. products

Transient Overvoltage

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.