IFX4L overcurrent protection relay is the first model of a new family of protection relays, named Sigma-L; it is designed by Seb based on the experience gained with the well known relays Sigma-N and Sigma-S.


  • IFX4L protection relay is conform to the CEI 0-16 Italian norm
  • IFX4L protection relay can also be used in other contexts where it is required an overcurrent or earth fault relay.

All our relays are in stock..


Overcurrent and earth fault multifunction protection relay, conform to CEI 0-16 norm with Data Logger. (50-51-51N)