Eaton Transformer Relay ETR-5000-2A2GA0 - Transformer protection relay

Power and compatibility flexibility helps you install this relay across varied plant environments. The device supports a wide power supply range—19-300 Vdc and 40-250 Vac—and operates at both 50/60 Hz, reducing the need for multiple spares and simplifying retrofits in legacy installations. Its semi-flush mounting and removable terminals streamline wiring, test, and commissioning in confined panels. By consolidating protection, metering, and communication in one unit, you cut wiring complexity, shorten project timelines, and accelerate maintenance response. This makes it an ideal choice for transformer protection in OEM equipment and automation plants where uptime matters. Eight digital inputs, nine outputs, and two current-sensing inputs enable richer protection logic without external relays. Zone selective interlocking—2 zones—helps coordinate faults and isolate faults faster, improving safety and system reliability. The inclusion of Sensitive Ground Input, Trip Coil Monitor, URTD, and IRIG-B timing options gives precise protection coordination and time synchronization across distributed assets. Communication and interoperability is provided by Modbus RTU or DNP3 RTU over RS-485 with D-Sub field connections for robust signal integrity and SCADA/EMS integration. With built-in metering, protection, and remote diagnostics, operators gain visibility and control from a single interface, reducing field service visits and enabling proactive maintenance. Upgrade path and protection layers include base relay compatibility with the ETR-4000, offering a clear migration path for legacy installations and consistent protection logic across fleets. The product supports 50/60 Hz, voltage protection and metering, and configurable I/O for easier system upgrades and spare-part planning. Warranty and service terms support project risk management: Eaton’s 25-000 policy provides one year from installation or eighteen months from shipment, whichever occurs first, delivering predictable maintenance budgeting and reduced downtime.