Eaton ETR-4000-2A0BA0 Transformer Relay - RS-485 Modbus/DNP3

Part Number: ETR-4000-2A0BA0
ETR-4000-2A0BA0
Manufacturer
Eaton
Part number
ETR-4000-2A0BA0
Category

Quick Summary

The Eaton transformer relay ETR-4000-2A0BA0 provides transformer protection for power systems. Engineers often struggle with coordinating protection logic across devices and maintaining reliable Modbus RTU communications in demanding plants. Typical approvals to verify include CE marking, UL recognition, and appropriate IP ratings for transformer protection gear; verify with Eaton for your region. This device supports robust monitoring and remote communication, reducing downtime and enabling centralized oversight. With 8 digital inputs and 9 outputs, it also simplifies control and metering in substations and switchgear installations.

Product Information

Extended Description

ETR-4000-2A0BA0 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 ,Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A0BA0
UPC
786679155271
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
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
Semi-flush
Voltage sensing inputs
0
Terminals
Removable
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RS-485 communication with Modbus RTU or DNP3 RTU support enables easy integration with SCADA systems, facilitating centralized monitoring and faster fault diagnostics; this reduces mean time to repair and improves system availability in transformer protection applications. The 8 digital inputs and 9 digital outputs provide flexible control and event-driven responses, while 2 current sensing inputs support differential protection and metering for improved protection accuracy and energy awareness. The power supply range of 19-300 Vdc or 40-250 Vac with 50/60 Hz compatibility offers installation versatility across regional electrical systems, enabling quicker retrofits and simplified panel design. Removable terminals and semi-flush mounting streamline wiring, reduce installation time, and lower commissioning costs in crowded control rooms. I/O options including IRIG-B URTD interface and Trip Coil Monitor expand diagnostic capability and protection coordination across devices. Zone selective interlocking support further enhances selective tripping and system stability in high-density transformer banks.

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FAQs

This model features removable terminals and a semi-flush mounting method, which simplifies wiring, reduces panel space constraints, and speeds up commissioning. Plan for 8 digital inputs and 9 digital outputs to match the relay I/O layout and ensure proper terminal labeling for maintenance.
Power supply range is 19-300 Vdc or 40-250 Vac with a 50/60 Hz rating. It includes 2 current sensing inputs, 8 digital inputs, 9 digital outputs, and supports Modbus RTU or DNP3 RTU over RS-485 for remote communication and integration with SCADA systems.
Yes. The relay supports both Modbus RTU and DNP3 RTU communications over RS-485, enabling interoperability with a wide range of protection schemes and SCADA systems in transformer protection applications.
It is designed for transformer protection in substations and industrial power systems, including differential protection and metering via current sensing inputs, alongside protection coordination features like zone selective interlocking and trip coil monitoring.
Eaton provides a warranty per policy 25-000: one year from installation or 18 months from shipment, whichever occurs first. Routine maintenance focuses on terminal integrity, I/O interconnections, and confirming RS-485 communications remain robust in the control network.