7SR5111-1AA11-1AA0, Siemens Ralley Directional Time-Overcurrent Protection, 7SR51series, 4 curr. trans., 9 BI, 8 BO

The 7SR5111-1AA11-1AA0 is a directional time-overcurrent protection device designed for industrial automation applications. It is part of the 7SR51 series and offers comprehensive protection for electrical circuits.

Key Features:

• Directional Time-Overcurrent Protection: Provides protection against excessive currents flowing in a specific direction, preventing damage to equipment and ensuring system safety.
• 4 Current Transformers (CTs): Monitors currents from four different circuits, allowing for precise protection.
• 4 Voltage Transformers (VTs): Measures voltages from four different circuits, enabling accurate directional determination.
• 9 Binary Inputs (BIs): Accepts digital signals from external devices, allowing for integration with other systems.
• 8 Binary Outputs (BOs): Provides digital outputs to control external devices or indicate alarm conditions.
• Standard Interfaces: Equipped with a USB interface for easy configuration and data transfer, an RS 485 interface for serial communication, and two RJ45 interfaces for network connectivity.
• S6 Enclosure: Housed in a rugged S6 enclosure, providing protection against harsh environmental conditions.
• Conformal Coating: Features a conformal coating to enhance resistance to moisture, dust, and other contaminants.

Applications:

• Power distribution systems
• Industrial processes
• Motor control
• Generator protection

Overall, the 7SR5111-1AA11-1AA0 is a reliable and versatile protection device that offers comprehensive protection for electrical circuits in industrial automation applications.

Datasheet