Over-current protection relay 7SR51

thermalarc flashthree-phase

The Reyrolle 7SR51 overcurrent device includes a wide range of protection functions and IEC 61850 Ethernet communications as standard. Why Reyrolle 7SR51? The Reyrolle 7SR51 overcurrent device provides comprehensive overcurrent and feeder protection for electricity networks. Use it in medium voltage substations or as backup protection for lines, transformers, generators, motors and busbars. Modern electricity networks require enhanced communication and cybersecurity and simply management. The Reyrolle 7SR51 integrates a wide range of protection functions and IEC 61850 Ethernet communications. Protect your assets and maintain network stability with advanced, secure features. Minimize product variants with a power supply and binary inputs covering the full operating range, simplifying inventory and maintenance. Operate easily with its user-friendly interface, large LCD and tactile pushbuttons. Its withdrawable design enables quick replacement to reduce downtime. Key benefits Protect your system Provide overcurrent and earth fault protection for MV substations, backing up main devices. Detect earth faults in isolated or compensated systems with high-speed elements for rapid tripping to restore power. Reduce costs Reduce maintenance, cut expenses and streamline operations with a compact design, low life-cycle cost, simple ordering and combined 1A/5A CT inputs. Enjoy flexible use with full range power supply and binary inputs. Increase system availability Deliver higher system availability with IEC 61850 Editions 1 and 2, DNP3 TCP, Modbus TCP and HSR, PRP and RSTP support. Implement role-based access control for security. Select multiple languages for global deploymen