Over-current protection relay SIA-B

earth-leakageRS485Modbus RTU

The SIA-B Self-powered Protection Relay is designed for secondary distribution protection and is compatible with various equipment, including RMUs, MRMUs, and SF6 insulated Switchgears in MV applications. It is well-suited for distributed renewable generation, such as solar parks and wind turbines. Equipped with specific CTs, the SIA-B Protection Relay offers a comprehensive set of protection functions in remarkably compact and lightweight housing, promoting preventative maintenance and significant cost savings. Key features include remote communication via RS485 Modbus RTU, self-powered and dual-powered (Self+Vaux) operation, low power consumption, wide protection coverage through sensors, load data profiling, disturbance fault recording, and an optional internal commissioning battery for added convenience.