Overcurrent protection

SIPROTEC V virtualizes substation protection & control, scaling up to 60 IEDs on one server with proven algorithms, IEC 61850 compliance, and AI-ready architecture.

The SIPROTEC 7SJ82 delivers cost-effective and compact overcurrent protection for feeders, lines, and capacitor banks in medium and high-voltage systems.

SIPROTEC 7SJ85 delivers modular overcurrent protection for feeders, lines, and capacitor banks, enabling flexible automation, control, and monitoring solutions.

The compact universal relay for medium-voltage grids. Protect feeders, lines, and motors with one device for beginners and professionals alike.

The SIPROTEC 7SX82 universal protection device covers most tasks in medium voltage and distribution grids. Tailor its functionality and pay only for what you apply.

A universal protection device with a patented LPIT input, combining all protection, automation, and control functions for MV applications in a single device.

The SIPROTEC 7SX85 is a modular universal protection device. Get precisely tailored functionality for any application and pay only for what you apply.

The Reyrolle 7SR51 overcurrent device includes a wide range of protection functions and IEC 61850 Ethernet communications as standard.

The Reyrolle 7SR10 Argus is a numerical overcurrent and earth fault relay, providing a simple protection solution for distribution and industrial applications.

The Reyrolle 7SR45 is a self-powered/dual-powered relay for non-directional overcurrent and earth fault protection, built with the latest hardware.

The Reyrolle 7SR46 is a dual-powered overcurrent and earth fault protection relay, CT-powered with an optional external auxiliary supply.

The Reyrolle 7SR110 relay provides overcurrent and earth fault protection, serving as main protection on feeders and backup protection on transformers.

The Reyrolle 7SR210 provides overcurrent and earth fault protection with highly flexible settings, making it compatible with all types of overcurrent protection.

This multifunctional relay provides flexible protection, control, and monitoring. Add up to 20 protection functions to meet individual requirements.