Eaton transformer relay ETR-4000-2A1IA0 - 50/60 Hz, RS-485 & Ethernet
Part Number: ETR-4000-2A1IA0
Quick Summary
Eaton transformer relay ETR-4000-2A1IA0 provides transformer protection and metering for substations and industrial facilities. Engineers often struggle to integrate protective relays with scalable I/O and dependable remote communications. Compliances vary by region; check with Eaton for current CE/SIL/IP certifications. Typical deployments leverage RS-485 Modbus RTU, Ethernet TCP/IP, and differential protection. By consolidating protection, metering, and interlocking in one device, this relay reduces panel complexity and total cost of ownership.
Product Information
Extended Description
ETR-4000-2A1IA0 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay,5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, over RS-485, over Ethernet RJ-45, 19-300Vdc, 40-250Vac, 50/60 Hz Sensitive Ground InputTrip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A1IA0
UPC
786679154557
Product Length/Depth
8.06 in
Product Height
8.7 in
Product Width
9.72 in
Product Weight
9.3 lb
Warranty
Eaton Selling Policy 25-000, one (1) year from the date of installation of the Product or eighteen (18) months from the date of shipment of the Product, whichever occurs first.
Compliances
Contact Manufacturer
Application
Transformer
Type
Transformer relay
Product Category
Transformer protection relay
Analog inputs
0
Analog outputs
0
Base relay
ETR-4000
Conformal coating
None
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
Sensitive Ground Input URTD Interface IRIG-B Trip Coil Monitor
Modbus / DNP3 RTU
over RS-485
Modbus / DNP3 TCP
over Ethernet RJ-45
Phase current
5A, 1A
Sensing inputs
Differential Protection Current Protection and Metering
Zone selective interlocking
2
Number of inputs
8
Number of outputs
9
Power supply range
19-300Vdc, 40-250Vac
Frequency rating
50/60 Hz
Power consumption
40-250 Vac, 19-300 Vdc
Number of inputs
8
Number of outputs
9
Power supply range
19-300Vdc, 40-250Vac
Power consumption
40-250 Vac, 19-300 Vdc
Frequency rating
50/60 Hz
Terminals
Removable
Mounting method
Semi-flush
Voltage sensing inputs
0
Terminals
Removable
E-series protective relays
E-series protective relays
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Eaton Specification Sheet - ETR-4000-2A1IA0
Versatile I/O enables complex protection schemes while simplifying wiring and maintenance. Eight digital inputs and nine outputs support zone selective interlocking, differential protection, and metering without adding external modules, reducing cabinet footprint and field wiring errors. The 19-300 VDC / 40-250 VAC power range and 50/60 Hz compatibility ensure a single-relay solution across diverse feeders, lowering lifecycle costs and stock requirements. RS-485 Modbus RTU and Ethernet TCP/IP enable seamless SCADA integration, remote diagnostics, and coordinated protection across your plant. The unit includes advanced options like URTD Interface, IRIG-B, and Trip Coil Monitor, improving testability and reliability in mission-critical transformer protection schemes. Removable terminals and semi-flush mounting simplify installation and future upgrades, while 8 inputs and 9 outputs provide scalable control for expanding transformer banks. Clear documentation, standard Eaton support, and a 1-year to 18-month warranty framework help maintenance teams plan, budget, and sustain uptime.
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FAQs
Plan for semi-flush mounting with removable terminals to simplify wiring. Ensure power is supplied within 19-300 VDC or 40-250 VAC, 50/60 Hz, and account for the eight digital inputs and nine outputs when sizing the control cabinet. Integrate RS-485 Modbus RTU and Ethernet TCP/IP connectivity for SCADA access, remote diagnostics, and interlock coordination. Allow space for access to Trip Coil Monitor and sensitive ground input wiring.
The device supports Modbus/ DNP3 over RS-485 and Modbus/DNP3 over Ethernet TCP/IP via RJ-45, enabling robust, field-proven integration with SCADA, HMIs, and higher-level protection schemes. This facilitates remote monitoring, coordinated protection, and centralized data logging. For installation, plan IP addressing, baud rate, and network topology to ensure reliable communication without impacting protection performance.
ETR-4000-2A1IA0 offers differential protection, current protection, and metering, plus Zone Selective Interlocking (2) to improve fault isolation. Use the Trip Coil Monitor and Sensitive Ground Input for enhanced fault detection and secure blocking during maintenance. These features are ideal for transformer banks in substations or industrial facilities where fast clearance, accuracy, and clear diagnostics are critical.
Compliances are provided by the manufacturer; confirm current CE, SIL, IP, and other regional certifications with Eaton for your installation. Eaton supplies specification sheets and datasheets, including the ETR-4000-2A1IA0 datasheet, to support validation, procurement, and commissioning. Always consult the latest Eaton publications before field deployment to ensure alignment with local regulations.
Warranty terms follow Eaton Selling Policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. Additionally, Eaton provides access to technical support, application notes, and the official datasheet. This support helps with commissioning, troubleshooting, and optimizing protection schemes for transformer assets, contributing to lower total cost of ownership.