Overcurrent protection

SIPROTEC V virtualizes substation protection & control, scaling up to 60 IEDs on one server. Built on SIPROTEC 5 algorithms with IEC 61850 compliance, it simplifies operations while enhancing cybersecurity and sustainability.

The SIPROTEC 7SJ81 offers cost-effective, compact overcurrent protection for feeders and lines in medium-voltage systems. Its powerful functions and standard conformal coating ensure high availability, even in extreme conditions.

The SIPROTEC 7SJ82 provides cost-effective, compact overcurrent protection for feeders, lines, and capacitor banks in medium/high-voltage systems. Get powerful, safe protection with user-friendly handling and robust cybersecurity.

The SIPROTEC 7SJ85 offers overcurrent protection for feeders, lines, and capacitor banks. Its modular structure and DIGSI 5 tool provide flexible, future-oriented solutions for protection, control, automation, and monitoring.

The SIPROTEC 7SX800 universal relay protects feeders, lines & motors in medium-voltage grids. This single, compact, cost-effective device offers powerful, proven protection for beginners and professionals.

The SIPROTEC 7SX82 universal relay covers most protection, control, and automation tasks in distribution grids. Pay only for what you apply, reducing device variance and optimizing investment and operating costs.

A single device for protection, automation, and control in MV applications. Its patented universal LPIT input minimizes device variance and spare parts, ensuring full lifecycle flexibility.

The SIPROTEC 7SX85 modular universal relay handles all protection, control, and automation tasks for 3-pole tripping. Its extensive function library ensures you pay only for the functions you apply.

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

A simple protection solution for distribution and industrial applications, the Reyrolle 7SR10 Argus relay offers numerical overcurrent and earth fault protection with integrated monitoring, metering, and data logging.

The Reyrolle 7SR45 relay provides reliable overcurrent and earth fault protection. Its self-powered/dual-powered design and latest-gen hardware ensure advanced functionality, with multiple variants for flexible configuration.

The Reyrolle 7SR46 is a dual-powered overcurrent and earth fault relay. CT-powered for remote grids, with an auxiliary supply option for added security. Provides definite and inverse-time protection.

The Reyrolle 7SR110 relay delivers reliable overcurrent and earth fault protection. Highly flexible settings and integrated logic ensure optimal configuration for main protection on feeders and backup protection on transformers.

The Reyrolle 7SR210 provides versatile overcurrent and earth fault protection for feeders and transformers. Integrated logic and flexible settings allow for optimal configuration and system compatibility.

The SIPROTEC 7SJ81 offers cost-effective, compact overcurrent protection for feeders and lines in medium-voltage systems. Its powerful functions and standard conformal coating ensure high availability, even in extreme conditions.

Protect high/medium-voltage feeders with the SIPROTEC 7SJ80. Create up to 20 custom protection functions and add user-defined automation logic (CFC) for maximum control and application flexibility.

SIPROTEC 7SJ66 is a multifunctional protection, control, and monitoring relay. Add up to 20 flexible protection functions to meet your individual requirements for line, motor, or backup protection.