The 7SR511 is a non-directional overcurrent and earth fault protection relay. Developed by Siemens under the Reyrolle brand, it is designed for use within distribution and industrial networks. It provides a highly flexible protection solution with a compact design, making it ideal for retrofitting older panels or integrating into new switchgear. 2. Core Protection Features
as standard interfaces, allowing the relay to communicate within sophisticated automation systems. Hardened Defense 7sr511 manual