Eaton ETR-5000-2B1FA1 Transformer Relay - Modbus RTU over Fiber

The ETR-5000-2B1FA1 supports a wide power range of 19-300 Vdc and 40-250 Vac, enabling installation across diverse facilities without multiple power supplies. This translates to reduced wiring complexity and lower upfront costs while maintaining accurate protection and metering for transformer assets. The device offers eight digital inputs and nine outputs, plus two analog inputs and two analog outputs, delivering rich control logic and metering capabilities that improve protection coordination and fault isolation in real time. Its fiber optic Modbus RTU or DNP3 RTU communication enables secure SCADA integration and remote diagnostics, driving faster MTTR and enhanced system visibility in distributed networks. Sensing capabilities cover Differential Protection, Current Protection, and Power/Voltage Protection with metering, delivering deeper visibility into transformer health and performance for proactive maintenance. The ETR-4000 base relay compatibility, removable terminals, and projection mounting simplify retrofits and panel integration, reducing installation time and risk. I/O options such as IRIG-B Sensitive Ground Input, Trip Coil Monitor, and URTD Interface enhance fault detection accuracy and trip reliability in demanding environments. Zone Selective Interlocking (ZSI) support helps minimize outage duration by coordinating breaker actions and improving overall reliability in substations and OEM deployments.