Eaton ETR-4000-2A3FA0 Transformer Relay - 5A/1A

Part Number: ETR-4000-2A3FA0
ETR-4000-2A3FA0
Manufacturer
Eaton
Part number
ETR-4000-2A3FA0
Category

Quick Summary

The Eaton transformer relay protects transformer systems by monitoring current and voltage, enabling fast protection in industrial power networks. Engineers frequently face miscoordination and slow fault isolation during transformer outages. Typical critical certifications to verify include CE marking for safety, SIL for system integrity, and IP ratings for enclosure protection; consult the official Eaton datasheet for this model to confirm. In addition to protection, the device integrates with Modbus RTU or DNP3 RTU over fiber, supporting remote diagnostics and centralized monitoring. This combination delivers improved reliability and faster incident response, while aligning with common industry practices and uptime objectives. Secondary benefits include flexible integration with existing SCADA and maintenance workflows, reducing manual troubleshooting and simplifying OEM deployments.

Product Information

Extended Description

ETR-4000-2A3FA0 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 , Sensitive Ground InputTrip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A3FA0
UPC
786679154632
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
URTD Interface IRIG-B Trip Coil Monitor Sensitive Ground Input
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
Semi-flush
Voltage sensing inputs
0
Terminals
Removable
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Feature → Business Impact → Application: Eight digital inputs and nine outputs provide comprehensive I/O for transformer protection logic and metering, enabling precise control and status reporting. This translates to faster fault triage, reduced nuisance trips, and streamlined coordination with plant PLCs, especially in utilities or data-center environments where reliability is critical. Feature → Application: Two current sensing inputs support accurate current differential protection and load monitoring, improving fault discrimination and enabling proactive maintenance strategies in substations and industrial facilities. Feature → Application: Modbus RTU or DNP3 RTU over fiber optic ST ensures secure, long-distance communication with SCADA and EMS systems, reducing cyber risk and enabling centralized alarm management across multiple feeders. Feature → Application: Wide power-supply ranges (19-300 Vdc, 40-250 Vac) accommodate varied plant voltages and retrofits, minimizing installation complexity and enabling plug-and-play deployment in mixed-voltage environments. Feature → Application: Zone selective interlocking and trip-coil monitoring optimize selectivity and uptime by isolating only the affected section, lowering outage impact and simplifying maintenance in complex transformer banks. Feature → Application: Removable terminals and semi-flush mounting simplify field wiring and service, accelerating installation, upgrades, and serviceability in crowded switchgear cabinets.

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FAQs

For installation, plan space for an 8-input/9-output unit with removable terminals and semi-flush mounting. Ensure a compatible power supply (19-300 Vdc or 40-250 Vac) and 50/60 Hz operation. Use fiber optic ST for Modbus RTU or DNP3 RTU to SCADA interfaces. Verify clear labeling and proper wiring of the 2 current sensing inputs and the zone interlock connections.
The device provides current and voltage monitoring with differential protection capabilities through its 2 current-sensing inputs and 8 digital inputs. It supports URTD interfaces, Trip Coil Monitor, and Sensitive Ground Input options for robust transformer protection. With Modbus RTU or DNP3 RTU over fiber, protection data can be shared with control systems for rapid fault isolation.
This transformer relay is suitable for transformer protection in industrial power networks, substations, and utility feeders. It supports rapid fault detection and selective tripping, enabling reliable operation in data centers, manufacturing plants, and energy distribution systems where transformer reliability is critical and downtime costs are high.
Certification details are not explicit in the provided data; always verify CE, SIL, and IP ratings on Eaton’s official datasheets and installation manuals. For this model, consult the Eaton specification sheet and warranty terms to confirm regulatory compliance and service expectations before field deployment.
By enabling fast fault isolation, reducing nuisance trips, and providing remote SCADA visibility, the ETR-4000-2A3FA0 lowers unplanned downtime and extends transformer life. The combination of eight digital inputs and nine outputs, plus fiber-enabled Modbus/DNP3 communication, supports predictive maintenance and streamlined O&M planning, delivering measurable uptime and operating-cost reductions.