
Highest availability
Conformal coating provides an extra level of protection for SIPROTEC relay and control devices used in extremely harsh environments and extends the lifetime of your devices.
The SIPROTEC 7SJ85 is an overcurrent protection device designed for feeders, lines and capacitor banks. Its modular structure and powerful DIGSI 5 engineering tool offer flexible, future-oriented solutions for protection, control and automation. Conformal coating of the electronic boards ensures the highest availability and safety, even under extreme environmental conditions. With its modular structure, flexibility and the powerful DIGSI 5 engineering tool, the SIPROTEC 7SJ85 device offers future-oriented solutions for protection, control, automation, monitoring and PQ basic.

Conformal coating provides an extra level of protection for SIPROTEC relay and control devices used in extremely harsh environments and extends the lifetime of your devices.

The SIPROTEC 7SJ85 provides directional and non-directional overcurrent protection with additional functions, as well as protection of up to 9 feeders with up to 40 analog inputs.
Get a flexibly adjustable and expandable I/O quantity structure within the scope of the modular SIPROTEC 5 system. Optionally add 1/6 expansion modules; available with large or small display, or without display.