Eaton ETR-4000-2A1BA1 Transformer Relay - RS485 Modbus/DNP3

Part Number: ETR-4000-2A1BA1
ETR-4000-2A1BA1
Manufacturer
Eaton
Part number
ETR-4000-2A1BA1
Category

Quick Summary

Eaton transformer relay ETR-4000-2A1BA1 provides advanced transformer protection for industrial power systems. For engineers facing slow fault isolation and limited remote visibility, this device streamlines protection logic and diagnostics through Modbus RTU or DNP3 RTU over RS485. Compliance notes indicate manufacturer verification is required, but buyers typically look for CE marking and robust enclosure protection as industry standards. The unit supports powerful current protection, differential protection, and metering capabilities, enabling fast fault isolation and accurate data logging. With eight digital inputs, nine outputs, and flexible I/O options, it delivers scalable protection for substations and OEM equipment while supporting seamless integration into existing control architectures.

Product Information

Extended Description

ETR-4000-2A1BA1 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay, Modbus RTU or DNP3 RTU over RS485, 5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, over RS-485, 19-300Vdc, 40-250Vac, 50/60 Hz, Projection
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A1BA1
UPC
786679154090
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 RS485
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
Sensitive Ground Input IRIG-B URTD Interface Trip Coil Monitor
Modbus / DNP3 RTU
over RS-485
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
Power metering, monitoring and diagnostics products for OEMs Power metering, monitoring and diagnostics products for OEMs Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E Eaton Specification Sheet - ETR-4000-2A1BA1
RS-485 communication with Modbus RTU or DNP3 RTU enables seamless integration with SCADA and remote diagnostics, reducing on-site visits and accelerating fault resolution. This translates to lower mean time to repair (MTTR) and improved system uptime in critical transformer applications such as substations and OEM equipment. The 8 digital inputs and 9 digital outputs provide flexible protection logic and control sequencing, supporting zone selective interlocking and precise trip coordination to minimize outages and nuisance trips. Having two current sensing inputs and differential protection capabilities enhances fault detection accuracy, delivering measurable protection margins and improved metering data for performance analytics. The 19-300 Vdc / 40-250 Vac power supply range and 50/60 Hz compatibility simplify a wide range of plant electrical environments, reducing third-party power conditioning needs. Projection mounting with removable terminals eases retrofits and panel integration, while I/O options like URTD Interface and Trip Coil Monitor expand diagnostics and safety interlocks. The unit’s rugged protection relay architecture aligns with industrial automation best practices, enabling scalable protection for growing facilities and new installations.

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FAQs

The ETR-4000-2A1BA1 is designed for transformer protection in industrial electrical systems, including substations and OEM equipment. It features eight digital inputs, nine outputs, two current sensing inputs, and a projection mounting with removable terminals, enabling straightforward panel integration and retrofit into existing protective schemes.
The relay supports Modbus RTU or DNP3 RTU over RS-485, enabling easy integration with SCADA, HMIs, and centralized protection architectures. This facilitates remote monitoring, fault logging, and coordinated tripping, reducing on-site maintenance and improving overall system reliability.
It provides 8 digital inputs and 9 digital outputs, plus 2 current sensing inputs for differential and current protection and metering. I/O options include Sensitive Ground Input, IRIG-B, URTD Interface, and Trip Coil Monitor, enabling flexible protection logic and enhanced diagnostic capabilities for robust transformer protection.
The device operates with a power supply range of 19-300 VDC or 40-250 VAC and 50/60 Hz frequency. This broad range supports varied plant electrical environments, reducing the need for additional conditioning equipment and simplifying installation during retrofits or new installations.
The unit follows Eaton’s warranty policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. For compliance, datasheets, and technical support, contact Eaton directly to ensure certification alignment and continued protection performance.