iRelay 60-D has rich and comprehensive protection functions and is suitable for various medium and high-voltage power systems. It can be used for bus link section protection; incoming line and section backup automatic switching. The device adopts a high-performance embedded microcontroller (integrated DSP instructions), a bus-free chip design, and a large-capacity high-speed non-volatile memory chip; the device has complete protection function configurations, reliable performance, and fast action; supports MODBUS-TCP, MODBUS-RTU protocols and IEC 60870-5-103, IEC 60870-5-104 protocols; the protection export configuration is flexible