Eaton ETR-4000-2A1FA1 Transformer Relay - Modbus RTU

Part Number: ETR-4000-2A1FA1
ETR-4000-2A1FA1
Manufacturer
Eaton
Part number
ETR-4000-2A1FA1
Category

Quick Summary

Eaton transformer relay ETR-4000-2A1FA1 provides robust transformer protection for power distribution and OEM equipment. Engineers often struggle with integrating protective relays and maintaining reliable SCADA communications across disparate devices. This model's compliance status is listed as 'Contact Manufacturer,' with a one-year warranty from installation or 18 months from shipment. Its 19–300 VDC / 40–250 VAC power range and 50/60 Hz compatibility suit varied plant environments. With integrated Modbus RTU or DNP3 RTU communications over fiber, it enables remote monitoring and faster troubleshooting. This combination supports safer installations, quicker service events, and long-term cost savings for industrial facilities. Designed for projection mounting with removable terminals, it simplifies retrofits and maintenance.

Product Information

Extended Description

ETR-4000-2A1FA1 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, Sensitive Ground InputTrip Coil Monitor,
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A1FA1
UPC
786679154328
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
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
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
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Feature: Eight digital inputs and nine digital outputs provide robust local control and status indication, while two current sensing inputs support differential protection and metering. Business Impact: Reduces wiring complexity, speeds fault isolation, and enables accurate energy accounting without additional metering. Application: Ideal for transformer protection schemes in OEM equipment and plant distribution networks.Feature: Modbus RTU or DNP3 RTU over fiber optic ST for field communications. Business Impact: Improves EMI immunity and extends communication reach to SCADA/EMS, enabling remote monitoring and diagnostics. Application: Integrates with existing industrial automation architectures in large facilities.Feature: Broad power supply range 19-300 Vdc and 40-250 Vac with 50/60 Hz. Business Impact: Flexible deployment across mixed-voltage environments, reducing converter needs. Application: Retrofit projects and new installations in power distribution panels.Feature: I/O options including Trip Coil Monitor, Sensitive Ground Input, URTD Interface, IRIG-B, and Zone Selective Interlocking. Business Impact: Fast fault clearance, precise protection coordination, and time synchronization. Application: Transformer protection with strict coordination in substations.Feature: Project-friendly design with projection mounting and removable terminals. Business Impact: Easier installation, faster commissioning, and simpler maintenance. Application: Suitable for retrofit and new builds in industrial power systems. Feature: Warranty and support ecosystem. Business Impact: Low lifecycle risk and predictable maintenance budgeting. Application: Critical transformer assets in manufacturing and utilities.

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FAQs

Installers should mount the unit using projection mounting and connect the removable terminals for quick retrofits. Wire the eight digital inputs and nine outputs to existing control logic, ensure the 19–300 Vdc or 40–250 Vac supply matches the site, and configure Modbus RTU or DNP3 RTU over fiber for SCADA connectivity. This setup minimizes wiring changes and speeds commissioning while maintaining safety.
Key specs include eight digital inputs, nine digital outputs, two current sensing inputs, power supply range of 19–300 Vdc or 40–250 Vac, and 50/60 Hz operation. Communication options are Modbus RTU or DNP3 RTU over fiber optic ST. Phase current options are 5A and 1A, supporting differential protection and metering for transformer protection.
Yes. The ETR-4000-2A1FA1 supports differential protection, current protection, and metering, with Zone Selective Interlocking and Trip Coil Monitor. Its flexible IO and fiber-based communications make it ideal for transformer protection in OEM equipment and industrial substations, enabling precise protection coordination and remote monitoring within SCADA ecosystems.
Compliance is listed as 'Contact Manufacturer,' so confirm CE, IP ratings, or SIL certifications directly with Eaton. The warranty is specified as one year from installation or 18 months from shipment per Eaton’s policy, which supports life-cycle planning and maintenance budgeting for critical transformer assets.
The relay’s remote monitoring via Modbus RTU or DNP3 RTU over fiber reduces现场 outages and speeds fault diagnosis, delivering measurable uptime gains. The unit’s rugged power range and removable terminals simplify maintenance and retrofits, contributing to lower lifecycle costs and faster ROI through reduced commissioning time and easier spare-part management.