Eaton ETR-4000-2A0KB0 Transformer Relay - Protection

Part Number: ETR-4000-2A0KB0
ETR-4000-2A0KB0
Manufacturer
Eaton
Part number
ETR-4000-2A0KB0
Category

Quick Summary

An Eaton transformer relay protects transformers by monitoring protection circuits and initiating trips to prevent damage. Engineers often battle miscoordination, false trips, and complex integration with legacy protection schemes. Compliance details are provided by Eaton; verify CE marking, IP ratings, and SIL readiness for your installation with the exact model. This device supports flexible I/O, remote communications, and modular installation to reduce field labor. In practice, it enables faster fault isolation, easier integration with SCADA, and scalable protection strategies that align with modern automation architectures. By combining differential protection with Trip Coil Monitor and IRIG-B/URTD options, it delivers value across industrial plants, substations, and heavy industry.

Product Information

Extended Description

ETR-4000-2A0KB0 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 ,Differential Protection, Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A0KB0
UPC
786679153956
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
Trip Coil Monitor IRIG-B URTD Interface
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
Semi-flush
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-4000-2A0KB0 Selling Policy 25-000 - Distribution and Control Products and Services
Feature: 8 digital inputs and 9 digital outputs enable multifunction protection and remote signaling. Business Impact: richer protection logic without extra hardware, reducing panel space and installation time. Application: transformer protection in new builds or retrofits where space and wiring efficiency matter. Feature: 2 current sensing inputs support accurate fault detection and metering. Business Impact: precise protection decisions and energy management insights, improving reliability and reducing MVA losses. Application: protection schemes requiring current-based differential logic and metering in substation feeders. Feature: Power supply range of 19-300 Vdc / 40-250 Vac and 50/60 Hz compatibility. Business Impact: broad compatibility with plant power architectures and easier integration with existing power systems. Application: seamless integration in mixed-voltage environments without extra power conversion. Feature: I/O options including Trip Coil Monitor, IRIG-B, and URTD Interface. Business Impact: enhanced synchronization, monitoring, and interface options for complex protection schemes. Application: systems needing precise trip coordination and external time references. Feature: Modbus/DNP3 TCP over LC duplex fiber Ethernet. Business Impact: robust, long-distance communications with SCADA and energy management systems, reducing firewall and gateway complexity. Application: modern industrial networks requiring reliable remote monitoring and control. Feature: Conformal coating and removable terminals. Business Impact: durable operation in harsh environments with easier maintenance and upgrades. Application: outdoor or industrial installations where exposure and serviceability are critical. This combination provides a comprehensive, scalable transformer protection solution for substations, factories, and processing plants.

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FAQs

The ETR-4000-2A0KB0 uses removable terminals and a semi-flush mounting method, with 8 digital inputs, 9 outputs, and a 19-300 Vdc / 40-250 Vac power range. It supports Modbus/DNP3 TCP over fiber and interfaces like IRIG-B and URTD, making it straightforward to retrofit into existing protection schemes and modern SCADA networks.
Key ratings include 8 digital inputs, 9 digital outputs, 2 current sensing inputs, 50/60 Hz operation, and a power supply range of 19-300 Vdc or 40-250 Vac. The unit also supports differential protection and Trip Coil Monitor as part of its transformer protection functionality.
Yes. It provides differential protection, Trip Coil Monitor, and flexible I/O plus serial/ethernet communications (Modbus/DNP3 TCP over fiber), which aligns with typical substation protection architectures and integration with SCADA and ETCS workflows.
Warranty is Eaton’s standard policy: 1 year from installation or 18 months from shipment, whichever occurs first. Compliance details are provided by the manufacturer, so verify exact certifications (such as CE/SIL/IP) with Eaton for your region and installation requirements.
The relay reduces downtime through precise differential protection and fast trip logic, lowers maintenance costs thanks to removable terminals and conformal coating for harsh environments, and simplifies integration with modern automation and control systems via fiber-based Modbus/DNP3 TCP connectivity.