Eaton ETR-4000-2A3IA0 Transformer Relay - 50/60 Hz

Part Number: ETR-4000-2A3IA0
ETR-4000-2A3IA0
Manufacturer
Eaton
Part number
ETR-4000-2A3IA0
Category

Quick Summary

Eaton transformer relay ETR-4000-2A3IA0 protects transformers in industrial power systems. Engineers grapple with slow fault isolation and inconsistent signaling over RS-485 or Ethernet networks. Common certifications for transformer relays include CE for European markets, SIL readiness for critical protection logic, and IP ratings for enclosure ruggedness; verify on Eaton's official datasheet. With eight digital inputs, nine outputs, and support for Modbus RTU over RS-485 and Modbus TCP over Ethernet, along with power range 19-300 VDC and 40-250 VAC, the device enables streamlined protection coordination. This translates into improved reliability, faster fault isolation, and lower total cost of ownership for industrial facilities. Designed for semi-flush mounting with removable terminals, installation is faster and maintenance is straightforward.

Product Information

Extended Description

ETR-4000-2A3IA0 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 Trip Coil MonitorSensitive Ground Input,
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A3IA0
UPC
786679154908
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
URTD Interface Trip Coil Monitor IRIG-B Sensitive Ground Input
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 Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Eaton Specification Sheet - ETR-4000-2A3IA0 Selling Policy 25-000 - Distribution and Control Products and Services
Integrated transformer protection logic provides differential and current protection with metering. Business impact: improves protection selectivity, reduces nuisance trips, and streamlines coordination. Application: ideal for transformer protection in substations and high-availability industrial plants. Flexible power and supply options simplify installation across varying site conditions; power supply range of 19-300 VDC and 40-250 VAC reduces wiring complexity and the need for multiple converters. Application: supports 50/60 Hz systems and diverse plant layouts. Extensive I/O and interface options—8 inputs, 9 outputs, URTD Interface, Trip Coil Monitor, IRIG-B and Sensitive Ground Input—enable scalable protection coordination and remote testing. Business impact: faster commissioning and easier field upgrades. Application: suitable for complex transformer protection schemes and zone-selective interlocking (2). Network communications via Modbus RTU over RS-485 and Modbus TCP over Ethernet allow real-time monitoring and remote configuration. Impact: minimizes on-site visits and enhances SCADA integration. Application: ideal for modern industrial automation networks and distributed power systems. Installation efficiency and durable design—removable terminals, semi-flush mounting, and a documented warranty—reduce downtime and spare parts variety. Impact: lower maintenance costs and faster serviceability. Application: industrial facilities seeking reliable uptime and predictable lifecycle costs.

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FAQs

Installers should use the removable terminals and semi-flush mounting to simplify wiring and access. Ensure power supply is within 19-300 VDC or 40-250 VAC and that the system runs at 50/60 Hz. Connect eight digital inputs and nine outputs according to the wiring diagram in the Eaton datasheet, and configure Modbus RTU over RS-485 or Modbus TCP over Ethernet for SCADA compatibility.
Key specs include eight digital inputs, nine digital outputs, two current sensing inputs, phase currents of 5A and 1A, and a wide power-supply range (19-300 VDC, 40-250 VAC) with 50/60 Hz operation. Protection features cover differential and current protection with metering, enabling precise transformer coordination and fault identification.
Yes. It supports transformer protection roles in substations and industrial facilities, offering RS-485 Modbus RTU and Ethernet Modbus TCP communications, URTD interface, IRIG-B input, and Zone Selective Interlocking. Its flexible I/O and rugged design enable reliable protection coordination and scalable integration with existing SCADA and automation networks.
Verify CE compliance for European markets, SIL readiness for critical protection logic, and IP enclosure ratings where applicable. While the datasheet notes Compliances as 'Contact Manufacturer,' confirm the exact certifications on Eaton's official documentation and the product datasheet before purchase to ensure regulatory alignment.
The device includes a one-year warranty from installation or 18 months from shipment, whichever occurs first, indicating solid lifecycle support. Remote monitoring capabilities, modular I/O, and removable terminals reduce service downtime and spare parts complexity, leading to lower maintenance costs and faster return on investment in ongoing transformer protection.