Overcurrent and feeder protection
The SIPROTEC 7SJ81 overcurrent protection has specifically been designed for a cost-effective and compact protection of feeders and lines in medium-voltage systems. With its flexibility and the powerful DIGSI 5 engineering tool, the SIPROTEC 5-device offers future-oriented system solutions with high investment security and low operating costs.

The SIPROTEC 7SJ81 overcurrent protection has specifically been designed for a cost-effective and compact protection of feeders and lines in medium-voltage systems. With its flexibility and the powerful DIGSI 5 engineering tool, the SIPROTEC 5-device offers future-oriented system solutions with high investment security and low operating costs.