Motor protection

The SIPROTEC 7SK82 delivers cost-optimized, compact protection for small to medium-sized motors. Powerful functions prevent overload and short-circuits, with ATEX certification for use in explosive environments.

The modular SIPROTEC 7SK85 protects motors of all sizes, including those in explosive environments (ATEX certified). Its flexible, expandable I/O and conformal coating ensure safety and high availability.

Protect generators and power plant units with the modular SIPROTEC 7UM85. It integrates all main protection functions, SIL2-certified reverse protection, and ATEX certification for explosive environments.

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 Reyrolle 7SR57 motor protection device offers a wide range of functions and standard IEC 61850 Ethernet. A full-range power supply and withdrawable design simplify inventory and maintenance.

The Reyrolle 7SR105 numerical relay provides comprehensive motor protection, monitoring, instrumentation, and metering. Its integral software package reduces installation, wiring, and engineering time.

The Reyrolle 7SR17 Rho numeric relay delivers integrated motor protection. It features 4 current inputs, optional voltage inputs, and an RTD interface for optimized thermal and starting supervision.

Protect asynchronous motors of all sizes with the SIPROTEC 7SK80 relay. Its flexible protection functions let you create up to 20 custom functions, while integrated programmable logic (CFC) enables switchgear automation.

The SIPROTEC 7SK81 is a multi-functional relay protecting asynchronous motors of all sizes. Designed for low-power current transformers, it covers a wide primary current range (20 A to 2500 A) for flexible and economic deployment.