Eaton ETR-4000-2A3KB1 Transformer Relay - 50/60 Hz

Part Number: ETR-4000-2A3KB1
ETR-4000-2A3KB1
Manufacturer
Eaton
Part number
ETR-4000-2A3KB1
Category

Quick Summary

Transformer relay is Eaton’s ETR-4000-2A3KB1, delivering transformer protection for industrial power systems and automation. Engineers often struggle with protection coordination gaps and unreliable fault signaling across mixed AC/DC buses, leading to unnecessary downtime. Compliance details aren’t listed here; check Eaton's specification sheet for CE, SIL, and IP-related ratings relevant to your region and application. The device supports 50/60 Hz operation with a broad power supply range (19–300 Vdc, 40–250 Vac) and features 8 digital inputs, 9 outputs, plus differential protection and metering capabilities, enabling robust transformer protection while optimizing maintenance intervals and uptime. In practice, this means safer operations, faster fault isolation, and a clearer path to regulatory conformity, with scalable protection for growing plant needs.

Product Information

Extended Description

ETR-4000-2A3KB1 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, Sensitive Ground Input,Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A3KB1
UPC
786679155127
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 Sensitive Ground Input IRIG-B URTD Interface
Modbus / DNP3 TCP
over LC duplex fiber optic Ethernet
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 3: Getting Started with the E-Series Wizard Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Eaton Specification Sheet - ETR-4000-2A3KB1
Feature: 8 digital inputs, 9 outputs, and 2 current sensing inputs enable comprehensive transformer protection and metering. Business impact: Consolidates monitoring in a single relay, reducing wiring complexity and integration time, boosting fault visibility and enabling precise trip decisions. Application: Suitable for transformer banks in substations and process facilities needing coordinated protection with metering data. Feature: Power supply range of 19-300 Vdc and 40-250 Vac supports wide plant voltage environments. Business impact: Minimizes the number of different power supplies required, cutting inventory and installation time while improving reliability. Application: Ideal for mixed-energy plants and retrofit projects where power rails vary. Feature: Removable terminals and projection mounting simplify field wiring and installation. Business impact: Reduces commissioning time and maintenance downtime, enabling faster upgrades and easier upgrades in confined spaces. Application: Field deployments in industrial plants and retrofit projects. Feature: Conformal coated circuit boards offer rugged reliability in harsh environments. Business impact: Increases resistance to moisture, dust, and chemical exposure, lowering failure rates and service costs. Application: Industrial floors and harsh manufacturing environments. Feature: Modbus / DNP3 TCP over LC duplex fiber optic Ethernet plus IRIG-B URTD interface and Trip Coil Monitor enable advanced communications and monitoring. Business impact: Enables remote diagnostics, faster fault localization, and tighter protection coordination across distributed assets. Application: Networks spanning multiple transformers and remote substations. Feature: Zone selective interlocking and 5A/1A current sensing inputs support precise coordination and selective tripping. Business impact: Reduces system-wide outages by coordinating protection among adjacent transformers, saving downtime and extending equipment life. Application: Large-scale electrical distribution and motor feeder protection. Feature: Warranty and support—Eaton policy offers one year from installation or eighteen months from shipment. Business impact: Provides cost containment and risk mitigation for procurement and maintenance planning. Application: Essential for asset lifecycle planning and service contracts in industrial environments.

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FAQs

What to check: ensure the base relay model ETR-4000 aligns with your transformer protection scheme, verify removable terminals and projection mounting for your cabinet, and confirm the 8 digital inputs, 9 outputs, and 2 current sensing inputs meet your control and metering needs. The Modbus/DNP3 TCP over fiber option supports integration with plant historians and PLCs, reducing wiring complexity in retrofit projects.
Key specs include a power supply range of 19–300 Vdc and 40–250 Vac with 50/60 Hz operation, 5A/1A current sensing inputs, 8 inputs and 9 outputs, and a Trip Coil Monitor. The unit supports differential protection and metering, enabling accurate fault signaling while coordinating with zone selective interlocking for selective tripping in multi-transformer configurations.
Yes, the device is designed for transformer protection with 50/60 Hz compatibility, IRIG-B URTD interface, and a robust enclosure approach (conformal coated boards). Its multiple digital I/O, programmable protection logic, and remote communication options support fast fault isolation and reliability required in substations and critical infrastructure.
The provided data lists Compliances as 'Contact Manufacturer.' Before deployment, review Eaton’s specification sheets for CE, SIL, and IP ratings applicable to your region and application, and verify with your procurement team that the transformer relay meets local electrical safety and performance standards.
The ETR-4000-2A3KB1 consolidates protection, metering, and remote diagnostics in a single relay, reducing wiring and panel space while enabling faster fault isolation. The 1-year (or 18-month) warranty supports risk reduction. ROI benefits come from minimized downtime, extended transformer life, and lower maintenance complexity across multi-transformer installations.