Eaton transformer relay ETR-5000-2B1GA1 - Modbus RTU over RS-485

Eight digital inputs and nine digital outputs provide flexible protection logic in a compact package. This feature reduces panel wiring and wiring errors while enabling fast trip decisions, improving reliability for transformer protection in switchgear, substations, and OEM equipment where space is at a premium. Two analog inputs and two analog outputs, plus two current sensing inputs, enable accurate metering and protection logic with reduced reliance on external instrumentation, lowering installation costs and accelerating commissioning. Modbus RTU or DNP3 RTU over RS-485 delivers robust fieldbus connectivity, simplifying integration with SCADA or DCS and enabling secure remote diagnostics for transformers in distributed architectures. A broad power-supply range of 19–300 Vdc or 40–250 Vac with 50/60 Hz support ensures compatibility across diverse plant electrical systems, reducing inventory and enabling rapid deployment in both new builds and upgrades. Removable terminals and projection mounting streamline wiring and installation, shrinking commissioning time and easing field service. Optional I/O features such as Sensitive Ground Input, Trip Coil Monitor, URTD Interface, and IRIG-B timing expand protection schemes for critical assets, delivering safer operation and easier regulatory compliance in utilities and industrial networks.