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Approvals & Standards


  • EN 61643-21


Key features & benefits

STS TEL is the series of surge protection devices for telephone signal lines.These are protectors for a final step of very fine protection to be installed as close as possible to particularly sensitive equipment connected to these communications lines. Meets the IEC 61643-21 standard.

More specifications



  • Commercial and residential installations*Telecom & IT & Data Centers


Product Specifications

Grau de Proteção (IP)


Tipo de fio

0.5 ... 2.5 mm²  

Conformidade CE


Conformidade com o REACH


Temp. Operacional máxima

60   °C

Temp operacional mínima

-20   °C

References in this series  (1)

Indication System

83040610 - STS-TEL-ADSL





0.057   kg