Eaton ETR-4000-2A3LA0 Transformer relay - 50/60 Hz

Feature → Business Impact → Application: 8 digital inputs and 9 outputs provide flexible control and alarming for transformer protection schemes, enabling rapid fault isolation and coordinated trips in substations or plant switchgear. This translates to improved uptime and reduced outage costs, especially in facilities with multiple feeders and complex protection logic. Application: suitable for differential protection, current protection, and metering, delivering actionable data to SCADA via Mbus TCP or DNP3 TCP/UDP over LC duplex fiber Ethernet for centralized monitoring. Feature → Business Impact → Application: 2 current sensing inputs support accurate load and fault current measurements, enabling precise metering and protection thresholds, which helps optimize energy usage and safety. Application: ideal for retrofit projects where legacy relays require modern communication paths without rewiring. Feature → Business Impact → Application: IRIG‑B timing, Trip Coil Monitor, and Sensitive Ground Input options enhance synchronization and fault indication, improving protection coordination and diagnostic accuracy in mission‑critical transformer applications. Feature → Business Impact → Application: 50/60 Hz compatibility and a wide power supply range (19–300 Vdc, 40–250 Vac) simplify integration into diverse electrical environments, reducing install time and risk. Application: particularly beneficial in mixed voltage sites or retrofits where unit compatibility with existing controls minimizes project scope.