Eaton ETR-5000-2A3FB1 Transformer Relay - 50/60 Hz

Eight digital inputs, nine digital outputs, and two current sensing inputs form a versatile I/O platform that lets the ETR-5000-2A3FB1 implement protection logic without external converters. This compact I/O footprint translates into faster commissioning and easier panel wiring, reducing labor costs while preserving clear fault indication for operators. The wide power-supply range—19-300 Vdc or 40-250 Vac and 50/60 Hz compatibility—enables seamless integration with existing plant power architectures and minimizes integration risk. Communication is built around Modbus RTU or DNP3 RTU over fiber, ensuring robust, noise-immune data transfer even in electrically noisy environments. A removable terminal design and projection mounting simplify installation and future servicing, while the base ETR-4000 compatibility allows upgrading legacy relays without rewriting protection schemes. I/O options such as Sensitive Ground Input, Trip Coil Monitor, IRIG-B, and URTD interfaces expand integration with protection schemes and metering. Conformal coated circuit boards provide resilience against humidity, temperature swings, and chemical exposure common in substation environments, while zone selective interlocking (2) improves fault isolation and speeds isolation during faults, while the removable terminals and projection mounting support straightforward installation and future upgrades. From a business standpoint, the Eaton ETR-5000-2A3FB1 consolidates protection, metering, and communications in a single device, reducing spare parts and training needs. Field engineers benefit from robust diagnostics, fiber-based protection signals, and compatibility with existing protection schemes through the ETR-4000 base relay. The result is lower total cost of ownership, improved uptime, and a scalable path for transformer protection in growing industrial sites.