Eaton ETR-4000-2A2FB1 Transformer Relay - Modbus RTU

Part Number: ETR-4000-2A2FB1
ETR-4000-2A2FB1
Manufacturer
Eaton
Part number
ETR-4000-2A2FB1
Category

Quick Summary

ETR-4000 transformer relay by Eaton provides advanced transformer protection for power distribution networks. When protection fails or communications drop, outages and costly repairs disrupt operations. Industry standards such as SIL, CE, and IP ratings are common expectations for this class of devices; confirm exact certifications with the manufacturer. Designed for Modbus RTU or DNP3 RTU over fiber, it integrates with existing protection schemes and SCADA. This enables remote monitoring, faster fault isolation, and improved asset availability. Its rugged construction and conformal coated circuit boards help withstand harsh environments in substations and industrial plants.

Product Information

Extended Description

ETR-4000-2A2FB1 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay, Modbus RTU or DNP3 RTU , 5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, 19-300Vdc, 40-250Vac, 50/60 Hz, Projection, Trip Coil Monitor,Sensitive Ground Input
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A2FB1
UPC
786679153970
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
Conformal Coated Circuit Boards
Communication
Modbus RTU or DNP3 RTU over Fiber Optic ST
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
Trip Coil Monitor Sensitive Ground Input URTD Interface IRIG-B
Modbus / DNP3 RTU
over fiber optic ST
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
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Feature → Business Impact → Application: The ETR-4000-2A2FB1 offers eight digital inputs and nine outputs with two current sensing inputs, enabling flexible protection logic and precise control within a single relay. This reduces panel congestion and simplifies wiring while supporting complex protection schemes for transformers in distribution yards and industrial plants. Application: ideal for substations and plant substations where reliable I/O is essential for fast fault isolation and coordination. Feature → Business Impact → Application: Power supply range of 19-300 Vdc and 40-250 Vac, plus 50/60 Hz operation, ensures compatibility with diverse plant electrical environments, decreasing the need for additional power conditioning equipment. Application: streamlines retrofit projects and new builds alike. Feature → Business Impact → Application: Modbus RTU or DNP3 RTU over fiber optic ST provides secure, long-distance communication, reducing cabling and improving SCADA integration. Application: supports remote monitoring and centralized protection management across dispersed sites. Feature → Business Impact → Application: Conformal coating on circuit boards and removable terminals boost reliability in harsh environments and simplify field maintenance. Application: well-suited for harsh substation cabinets or outdoor installations. Feature → Business Impact → Application: Zone selective interlocking (2) and Trip Coil Monitor enable coordinated protection and selective tripping, reducing outage scope and equipment stress. Application: essential for transformer banks and switchgear assemblies requiring fast, coordinated responses. Feature → Business Impact → Application: URTD Interface and IRIG-B support extend compatibility with time synchronization and OEM interfaces, enabling seamless integration into existing protection ecosystems. Application: reduces engineering time and accelerates commissioning. Feature → Business Impact → Application: Warranty and service options from Eaton provide lifecycle value, supporting maintenance planning and long-term ROI. Application: credible for mission-critical transformer protection programs.

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FAQs

Begin with confirming power availability within the 19-300 Vdc / 40-250 Vac range and 50/60 Hz compatibility. Mount the unit using projection mounting, connect eight digital inputs and nine outputs to your protection logic, and wire current sensing inputs as specified (two channels). Use the fiber optic ST link for Modbus RTU or DNP3 RTU communications to SCADA. The system’s removable terminals simplify installation and future maintenance, while the conformal coated boards help withstand harsh environments.
Key specs include eight digital inputs, nine digital outputs, two current sensing inputs, and a 5A/1A current sensing configuration. The device supports 19-300 Vdc or 40-250 Vac power, with 50/60 Hz operation. Communication is via Modbus RTU or DNP3 RTU over fiber. The unit is designed for transformer protection with zone selective interlocking and protection monitoring, which informs coordination with other relays in the protection scheme.
Yes. It is purpose-built as a transformer protection relay with current protection and metering, differential protection capabilities, and zone selective interlocking. Its Modbus RTU or DNP3 RTU over fiber enables secure, remote monitoring and integration with SCADA. The rugged design, removable terminals, and conformal coating support reliable performance in substation environments and industrial plants alike.
Certification details for this model are defined by the manufacturer. Typical expectations for transformer protection relays include industry standards such as SIL, CE, and IP ratings, depending on the installation. Always verify the exact certifications with Eaton prior to procurement to ensure alignment with your plant’s safety and regulatory requirements.
The ETR-4000-2A2FB1 ships with a one-year Eaton warranty and supports long-term maintenance via removable terminals and conformal-coated boards, reducing field labor and downtime. Its integrated protection logic, remote communication, and coordination features like zone selective interlocking help minimize outage duration, improve mean time between failures, and deliver a favorable total cost of ownership over transformer assets.