Siemens Protection Relay 7SR51

The Siemens 7SR5111-1AA11-0AA0 is a highly reliable Directional Time-Overcurrent Protection Relay designed for advanced protection applications in electrical systems. This model is part of the 7SR51 series, offering robust features including 4 current transformers (CT), 4 voltage transformers (VT), and an impressive range of 9 binary inputs (BI) and 8 binary outputs (BO), ensuring versatile functionality and precise fault detection.

Key Features:

• Directional Time-Overcurrent Protection: Provides efficient protection against both overcurrent and directional faults.
• Flexible Interface Options: Equipped with 1 USB port (front), 1 RS 485 port (rear), and 2 RJ45 interfaces for seamless communication and data exchange.
• Versatile Connectivity: Ideal for integration with modern automation systems, supporting easy configuration and remote monitoring.
• Enclosure: Comes in a durable S6 enclosure, ensuring long-lasting protection and compact installation for industrial environments.
• Reliable Protection: Suitable for power distribution systems, offering comprehensive protection for transformers, feeders, and other critical components.

This relay is engineered to offer superior protection, monitoring, and control functions, meeting the requirements of high-performance energy networks. Whether you’re dealing with overcurrent or earth fault conditions, the Siemens 7SR5111-1AA11-0AA0 ensures safe and efficient operation of your electrical infrastructure.