Siemens Current Relay 7SR51111AA110AA0

The Siemens 7SR5111-1AA11-1AA0 is a Directional Time-Overcurrent Protection Relay designed for precise fault protection in electrical systems. Part of the 7SR51 series, this relay provides reliable and efficient protection for transformers, feeders, and other critical components in a range of industrial and utility applications.

Key Features:

• Directional Time-Overcurrent Protection: Ensures accurate fault detection and protection, responding to overcurrent conditions in a specific direction.
• 4 Current Transformers (CT) and 4 Voltage Transformers (VT): Supports comprehensive protection through the integration of current and voltage measurement for precise fault analysis.
• 9 Binary Inputs (BI) and 8 Binary Outputs (BO): Allows integration with control systems and external devices, offering flexible monitoring and operation.
• Standard Interface Options:
  • USB (Front): For easy configuration and setup.
  • RS 485 (Rear) and 2 x RJ45 Interfaces: Provide reliable communication and data transfer capabilities for remote monitoring and control.
• S6 Enclosure: Compact and durable design, ensuring easy installation and long-term protection in harsh industrial environments.
• Conformal Coating: Provides additional protection against environmental factors such as moisture and dust, extending the reliability and lifespan of the relay in challenging conditions.

The Siemens 7SR5111-1AA11-1AA0 relay is ideal for applications where directional time-overcurrent protection is critical. Its robust communication features and durable design make it a reliable solution for modern energy systems requiring precise protection, monitoring, and control.