Eaton ETR-4000-2A3IA1 Transformer Relay - 50/60 Hz

Part Number: ETR-4000-2A3IA1
Manufacturer
Eaton
Part number
ETR-4000-2A3IA1

Quick Summary

Eaton ETR-4000-2A3IA1 Transformer Relay protects transformers in industrial power systems with integrated protection and metering. Operators often suffer downtime due to undetected faults or mis-coordinated protection schemes. Certifications such as CE safety approvals, SIL-capable configurations, and regional compliance are verified with Eaton datasheets to ensure reliability across markets. This protection relay delivers reliability, interoperability with RS-485 and Ethernet networks, and scalable I/O for future-proof protection schemes. In practice, this translates to faster fault isolation, reduced outage times, and lower total cost of ownership for substations and OEM equipment. Its wide power-supply range and flexible I/O simplify installation across diverse plant environments. With embedded telemetry and remote-access options, engineers can verify protection settings and performance without site visits.

Product Information

Extended Description

ETR-4000-2A3IA1 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay,5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, over RS-485, Ethernet RJ-45, 19-300Vdc, 40-250Vac, 50/60 Hz, Projection,Sensitive Ground Input,Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A3IA1
UPC
786679154984
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
IRIG-B Trip Coil Monitor URTD Interface 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
Projection
Voltage sensing inputs
0
Terminals
Removable
Feature → Business Impact → Application: The ETR-4000-2A3IA1 offers eight digital inputs, nine outputs, and two current-sensing inputs, enabling complex protection logic and precise fault isolation. This reduces false trips and improves system availability in transformer protection relay applications across substations and industrial plants. Application: Use in transformer protection schemes requiring differential protection, metering, and Zone Selective Interlocking to minimize outage duration. Feature → Business Impact → Application: Communication capabilities include Modbus/DNP3 over RS-485 and TCP/IP over Ethernet, enabling seamless SCADA integration and remote diagnostics. Business impact: faster fault analysis, centralized monitoring, and reduced on-site maintenance costs. Application: Suitable for OEM equipment and power distribution networks where remote visibility is critical. Feature → Business Impact → Application: A broad power-supply range (19-300 Vdc, 40-250 Vac) and 50/60 Hz operation enable installation in diverse environments without separate power conditioning. Business impact: lower installation complexity and fewer site-approved power conversions. Application: Retrofit projects or new builds needing versatile input power compatibility. Feature → Business Impact → Application: I/O options such as IRIG-B, Trip Coil Monitor, URTD interface, and Sensitive Ground Input provide advanced synchronization and fault-sensing features. Business impact: improved protection accuracy and safer coordination with upstream protection schemes. Application: Critical transformer protection in high-reliability facilities. Feature → Business Impact → Application: Projection mounting and removable terminals simplify field installation and maintenance, reducing commissioning time and downtime. Business impact: faster deployment, easier servicing, and lower lifecycle costs. Application: Field upgrades or new installations in industrial environments. Feature → Business Impact → Application: 5A/1A phase current sensing and robust digital/analog input/output enable precise control, metering, and fault reporting. Business impact: enhanced situational awareness and data-driven decision-making for plant operators. Application: Transformer protection relays used for monitoring current profiles and protective events in substations.

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FAQs

The ETR-4000-2A3IA1 uses projection mounting and removable terminals, which streamline retrofit installs. Ensure your site power supply matches the 19-300 Vdc / 40-250 Vac range and that RS-485 Modbus or Ethernet TCP/IP wiring is correctly terminated for reliable communication with SCADA.
It combines differential protection and metering with current sensing inputs, zone selective interlocking, and a flexible 8-in/9-out I/O configuration. These features enable fast fault isolation, accurate protection coordination, and scalable monitoring for transformers in substations and OEM equipment.
The unit supports Modbus and DNP3 over RS-485 and TCP/IP over Ethernet RJ-45, allowing robust remote monitoring, data collection, and control from standard SCADA/HMIs without additional protocol gateways.
Compliances are specified as manufacturer-dependent. Verify CE/UL safety approvals and regional regulatory requirements via Eaton datasheets for your installation. Confirm that the unit’s protective functions, interfaces, and environmental ratings meet your project’s standards.
Projection mounting and removable terminals simplify installation and field servicing. The 8/9 I/O configuration supports comprehensive protection schemes, while remote monitoring via RS-485/Ethernet reduces on-site visits and helps sustain uninterrupted transformer operation.