Eaton transformer relay ETR-4000-2A1LA1 - Mbus TCP / DNP3 TCP/UDP over LC duplex FO Enet

Part Number: ETR-4000-2A1LA1
ETR-4000-2A1LA1
Manufacturer
Eaton
Part number
ETR-4000-2A1LA1
Category

Quick Summary

Eaton transformer relay ETR-4000-2A1LA1 provides transformer protection and monitoring for industrial power systems. This protects critical assets while delivering actionable data to SCADA and maintenance teams. While formal certifications like CE or IP ratings are not listed publicly, Eaton notes that compliances should be confirmed with the manufacturer, and the unit carries a standard warranty of one year from installation or 18 months from shipment. The relay supports Mbus TCP or DNP3 TCP/UDP over LC duplex fiber Ethernet, 8 digital inputs, 9 outputs, and two current sensing inputs, enabling scalable protection and remote diagnostics. By combining robust protection with flexible communication, it supports transformer protection programs, preventive maintenance, and data-driven operations.

Product Information

Extended Description

ETR-4000-2A1LA1 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, Projection
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A1LA1
UPC
786679154861
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
Sensitive Ground Input IRIG-B Trip Coil Monitor URTD Interface
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
Projection
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-4000-2A1LA1
Feature: 8 digital inputs, 9 outputs, and 2 current sensing inputs enable complex protection logic and fast fault signaling. Business Impact: supports precise protection coordination and rapid alarm generation, reducing outage time. Application: deploy in transformer protection schemes inside substations or OEM equipment. Feature: Wide power supply range 19-300 Vdc / 40-250 Vac and 50/60 Hz compatibility. Business Impact: accommodates diverse plant power rails with minimal conditioning, reducing cabling and stocking complexity. Application: retrofit projects and mixed-voltage environments. Feature: Communication via Mbus TCP or DNP3 TCP/UDP over LC duplex fiber Ethernet. Business Impact: enables remote monitoring, SCADA integration, and fault diagnostics across rugged OT networks. Application: transformer protection and metering with centralized data access. Feature: Removable terminals and projection mounting. Business Impact: simplifies installation, field service, and cabinet retrofits, lowering commissioning time. Application: control-house, switchgear, and panel installations. Feature: Zone selective interlocking (2) and current protection / differential protection. Business Impact: improves protection selectivity and minimizes wider outages, boosting system reliability. Application: coordinated transformer protection in multi-transformer configurations.

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FAQs

Plan for projection mounting with removable terminals to simplify wiring. Connect power from 19-300Vdc or 40-250Vac sources, wire 8 digital inputs and 9 digital outputs as required, and fit the LC duplex fiber Ethernet link for Mbus TCP or DNP3 TCP/UDP communication. Follow the manufacturer guidelines for grounding and field termination to ensure reliable protection and communication.
Key specs include 8 digital inputs, 9 digital outputs, 2 current sensing inputs, a dual voltage range of 19-300Vdc / 40-250Vac, and 50/60 Hz operation. Communication is via Mbus TCP or DNP3 TCP/UDP over LC duplex fiber Ethernet, with zone selective interlocking support and protection functions for transformer applications.
Yes. It provides transformer protection, metering, and remote communication suitable for substations and OEM equipment. Its 8/9 I/O, LC fiber communication, and zone selective interlocking support coordination and fast fault isolation in multi-transformer environments.
The product page lists Compliances as 'Contact Manufacturer'—meaning region-specific certifications (such as CE, SIL, IP ratings) should be confirmed directly with Eaton to meet local regulatory requirements.
By enabling remote monitoring, SCADA integration, and predictive diagnostics, the relay reduces downtime and maintenance costs. Its modular I/O, removable terminals, and standardized power inputs simplify retrofits and long-term lifecycle management, delivering quicker commissioning and operational efficiency.