Eaton ETR-4000-2A0KB1 Transformer Relay - 50/60 Hz

Part Number: ETR-4000-2A0KB1
ETR-4000-2A0KB1
Manufacturer
Eaton
Part number
ETR-4000-2A0KB1
Category

Quick Summary

Eaton transformer relay enables real-time transformer protection for industrial power systems. It helps prevent downtime by quickly detecting fault conditions and isolating the affected section before damage spreads. Compliance status varies by region; contact Eaton to confirm CE marking, SIL level, or IP rating for your installation. The unit supports broad voltage ranges and 50/60 Hz operation, with modular interfaces that enable integration via Modbus TCP and DNP3 TCP for centralized control. In practice, these capabilities translate to faster fault diagnosis and lower maintenance costs for utilities and large facilities.

Product Information

Extended Description

ETR-4000-2A0KB1 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay,5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9, Removable, Transformer, , 19-300Vdc, 40-250Vac, 50/60 Hz, Projection, Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A0KB1
UPC
786679154021
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
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
IRIG-B URTD Interface Trip Coil Monitor
Modbus / DNP3 TCP
over LC duplex fiber optic Ethernet
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
E-series protective relays E-series protective relays Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation Eaton Specification Sheet - ETR-4000-2A0KB1
Removable terminals and projection mounting simplify installation and maintenance, reducing wiring errors and downtime while enabling rapid field servicing. The 8 digital inputs and 9 digital outputs provide comprehensive transformer protection logic without external modules, streamlining panel layouts in substations and industrial plants. With a power supply range of 19-300 Vdc and 40-250 Vac and a 50/60 Hz rating, the system adapts to diverse plant power rails and voltage environments, improving integration with legacy equipment. IRIG-B and URTD interface options, along with a Trip Coil Monitor, enable precise timing and enhanced fault coordination, while the Modbus/DNP3 TCP over LC duplex fiber Ethernet supports scalable remote monitoring and control. Conformal coated circuit boards and removable terminals boost durability in harsh installations, and Zone Selective Interlocking (ZSI) accelerates fault clearance across networks, delivering measurable efficiency gains and reduced maintenance cycles. Compatibility with Eaton’s E-Series ecosystem ensures consistent protection logic across devices and straightforward installation in transformer protection schemes.

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FAQs

Plan for 19-300 Vdc or 40-250 Vac power sources and a 50/60 Hz supply. Utilize the removable terminals and projection mounting to simplify wiring and field maintenance. Verify that the control network supports Modbus TCP or DNP3 TCP over fiber, and ensure enclosure protection meets site conditions. Keep spare TR communication cables and shields accessible to reduce commissioning time.
The relay is specified for 50/60 Hz operation and supports a broad power supply range (19-300 Vdc, 40-250 Vac), allowing integration with diverse plant electrical systems. This flexibility reduces the need for additional, separate protection devices and simplifies engineering validation when retrofitting or upgrading transformer protection schemes.
Yes, the unit supports Modbus TCP and DNP3 TCP over LC duplex fiber optic Ethernet. This enables seamless integration with existing SCADA/EMS architectures, centralized monitoring, and remote control. The integration reduces field maintenance visits, accelerates fault diagnosis, and supports scalable protection coordination across multiple transformers.
Expect reduced transformer downtime due to faster fault detection and isolation, improved coordination through Zone Selective Interlocking, and lower maintenance costs from modular, field-serviceable design. The combination of 8 inputs and 9 outputs supports comprehensive protection logic in a compact footprint, minimizing panel space and wiring complexity while enabling centralized monitoring via Ethernet-based protocols.
Compliance details vary by region; contact Eaton for CE, SIL, and IP rating applicability to your installation. Review the Eaton ETR-4000-2A0KB1 datasheet and the specification sheets linked in the product downloads to confirm regulatory scope. Ensure warranty terms (one year from installation or 18 months from shipment) are accepted and that your procurement includes the required interface modules and fiber communication hardware.