The ABB 1MRS050644 is a high-performance communication and interface module designed for the Relion series of protection and control relays. This component acts as a vital bridge for data transmission and signal processing within digital substation environments, ensuring high-speed communication between primary equipment and the automation network.

Technical Specifications

• Part Number: 1MRS050644
• Brand: ABB
• Series: Relion Protection and Control
• Type: Communication Interface Card / Ethernet Module
• Protocol Support: Optimized for IEC 61850, DNP3, and Modbus TCP
• Weight: Approximately 0.45 kg
• Operating Temperature: -25°C to +55°C

Key Technical Features

• Advanced Connectivity: Supports redundant Ethernet architectures (HSR/PRP) to prevent data loss in the event of a network path failure.
• Low Latency: Engineered for real-time GOOSE messaging, essential for high-speed interlocking and protection tripping across the substation.
• Industrial Hardening: Features high electromagnetic compatibility (EMC) to operate reliably in the presence of high-voltage switching noise.
• Hot-Swappable Design: Depending on the specific relay chassis, these modules are often designed for easy maintenance and replacement without total system shutdown.

Primary Applications

• Substation Automation: Facilitating process bus and station bus communications in utility grids.
• Power Distribution: Used in medium and high-voltage switchgear monitoring for industrial plants.
• Renewable Energy: Integrating wind farm and solar plant protection relays into a centralized SCADA system.
• Infrastructure: Providing reliable protection communication for railway and airport power systems.