Eaton ETR-5000-2A1GA0 Transformer Relay - Modbus RTU / DNP3 RTU over RS-485

Feature is the heart of protection; it translates into business impact. The ETR-5000-2A1GA0 combines transformer protection and remote communication via Modbus RTU or DNP3 RTU over RS-485, enabling direct integration with modern SCADA and OEM control systems, which reduces wiring complexity and speeds fault diagnosis. This translates into faster restoration times and improved system availability in substations and industrial installations. Application-wise, it supports transformer protection with metering and monitoring capabilities, making it ideal for power distribution panels and OEM equipment where reliability matters. Another feature is its wide power input range, 19-300 Vdc and 40-250 Vac, allowing operation from diverse plant power sources without adding separate supply hardware, lowering installation costs and simplifying retrofits. This input flexibility supports projects with varying utility voltage profiles and mixed fleets of equipment, reducing engineering effort and spare part variety. The device provides 8 digital inputs and 9 outputs plus 2 current sensing inputs, enabling robust zone selective interlocking and coordinated protection logic, which can minimize customer downtime and improve selective tripping. Installation and maintenance are eased by removable terminals and semi-flush mounting, simplifying field wiring, diagnostics, and future upgrades in crowded control cabinets. Finally, the built-in protection capabilities, combined with enterprise-friendly communications, deliver tangible ROI through reduced protection retries, faster fault localization, and better data for performance analytics across OEM and end-user installations.