Eaton transformer relay ETR-4000-2A0LA0 - 50/60 Hz

Part Number: ETR-4000-2A0LA0
ETR-4000-2A0LA0
Manufacturer
Eaton
Part number
ETR-4000-2A0LA0
Category

Quick Summary

ETR-4000-2A0LA0 is an Eaton transformer relay for protecting transformers in substations and OEM equipment. Engineers often wrestle with nuisance trips and difficult system integration, and this unit addresses those pain points with precise sensing, rugged I/O, and reliable communications. Compliance details depend on configuration, with typical support for industry standards; confirm CE, SIL, and IP ratings with Eaton to ensure regulatory alignment for your site. By combining transformer protection with flexible Modbus and DNP3 connectivity, the solution supports scalable monitoring, faster fault diagnosis, and reduced downtime across asset fleets, delivering clear business value for utilities and OEMs in demanding industrial environments.

Product Information

Extended Description

ETR-4000-2A0LA0 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay, Mbus TCP or DNP3 TCP/UDP over LC duplex FO Enet, 5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, 19-300Vdc, 40-250Vac, 50/60 Hz , Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A0LA0
UPC
786679153987
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
Communication
Mbus TCP or DNP3 TCP/UDP over LC duplex FO Enet
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
Trip Coil Monitor URTD Interface IRIG-B
Modbus / DNP3 TCP
over LC duplex fiber optic Ethernet
Phase current
5A, 1A
Sensing inputs
Current Protection and Metering Differential Protection
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
Power metering, monitoring and diagnostics products for OEMs Power metering, monitoring and diagnostics products for OEMs 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-4000-2A0LA0
Power and communications flexibility enable simpler installation and broader integration options. The ETR-4000-2A0LA0 accepts 19-300 Vdc or 40-250 Vac and supports Mbus TCP or DNP3 TCP/UDP over LC duplex fiber Ethernet, delivering reliable data paths from the relay to your SCADA or management systems. This flexibility reduces wiring complexity during retrofit projects and enables remote diagnostics across distributed transformers, lowering on-site labor, commissioning time, and maintenance costs. In practice, engineers can consolidate protection, metering, and communications left-of-panel tasks into a single, extensible device. Eight digital inputs, nine outputs, and two current sensing inputs provide ample headroom for protection schemes, alarms, and metering without external add-ons. The unit supports differential protection and current protection with zone selective interlocking (2), which improves selective tripping and minimizes collateral damage during faults. This capability translates to higher system availability and safer commissioning, especially in high-density switchgear environments and multi-transformer installations. Communication and interoperability are central to operational efficiency. The ETR-4000-2A0LA0 offers Modbus and DNP3 TCP interfaces and fiber Ethernet connectivity, enabling seamless SCADA integration and remote diagnostics. Time synchronization can be enhanced with optional URTD Interface IRIG-B via the I/O options, while the Mbus TCP or DNP3 TCP/UDP pathways support reliable telemetry over long distances. Installation and serviceability are streamlined by removable terminals and semi-flush mounting, making field wiring faster and less error-prone. The compact footprint—8.06 in long, 9.72 in wide, 8.7 in high—fits standard control panels, and the 8 inputs with 9 outputs deliver substantial I/O density without external modules. A one-year warranty under Eaton policy provides protection during critical deployment phases, and the device's compliance details are available from the manufacturer to ensure your project meets internal standards and regulatory requirements.

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FAQs

For retrofit installations, mount the relay semi-flush and use the removable terminals to simplify field wiring. Connect the 19-300 Vdc or 40-250 Vac power supply, wire the eight digital inputs and nine outputs to existing protection and alarm circuits, and establish fiber-based Modbus or DNP3 communication as required. The unit’s compact footprint fits standard control panels, reducing the need for new panels and minimizing commissioning time.
The relay offers differential protection and current protection with two current sensing inputs and zone selective interlocking (2) for precise fault isolation. It supports 50/60 Hz operation and can integrate with metering functions for transformer monitoring. These capabilities improve selectivity, reduce collateral damage during faults, and enable faster fault diagnosis in substations and OEM equipment.
Yes. The device supports Modbus and DNP3 TCP interfaces over LC duplex fiber Ethernet and can utilize Mbus TCP or DNP3 TCP/UDP for telemetry. This enables straightforward SCADA integration, remote diagnostics, and scalable monitoring across distributed transformers, while preserving timing accuracy with optional IRIG-B synchronization.
Compliances depend on configuration; Eaton provides certification details per model variant. Always verify CE, SIL, and IP ratings with the manufacturer for your site requirements. The product documentation lists 'Compliances: Contact Manufacturer' to ensure you select a configuration that meets regulatory and safety standards.
Expect improved uptime thanks to rapid fault detection, precise protection coordination, and remote diagnostics that reduce site visits. The 8/9 IO density supports comprehensive protection without external modules, cutting wiring complexity and maintenance overhead. A standard one-year warranty provides deployment assurance during critical phases while enabling long-term cost savings through streamlined maintenance and scalable protection coverage.