Eaton ETR-4000-2A3KA0 Transformer Relay - 50/60 Hz

Part Number: ETR-4000-2A3KA0
ETR-4000-2A3KA0
Manufacturer
Eaton
Part number
ETR-4000-2A3KA0
Category

Quick Summary

Eaton transformer relay ETR-4000-2A3KA0 provides transformer protection for industrial substations and switchgear. Owners often face protection coordination challenges, misconfigured settings, and outage risk when relying on disparate relays. This model typically involves CE considerations, IP ratings for rugged environments, and SIL safety contexts—verify exact certifications with Eaton. With Modbus or DNP3 TCP over fiber and eight inputs plus nine outputs, it integrates seamlessly into modern control architectures, delivering clearer visibility, faster fault isolation, and reduced commissioning time for critical transformer assets.

Product Information

Extended Description

ETR-4000-2A3KA0 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 Sensitive Ground Input,Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A3KA0
UPC
786679155011
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
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
Sensitive Ground Input URTD Interface Trip Coil Monitor IRIG-B
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
Semi-flush
Voltage sensing inputs
0
Terminals
Removable
E-series protective relays E-series protective relays Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Eaton Specification Sheet - ETR-4000-2A3KA0
Feature → Business Impact → Application: 8 digital inputs and 9 digital outputs provide first-pass visibility and centralized control, reducing wiring complexity and panel space while enabling comprehensive transformer protection. This translates to faster fault diagnosis and lower maintenance costs in substations and switchgear environments. Application: medium- to large-scale transformer protection schemes with strict interlock and metering needs. Feature → Business Impact → Application: Power supply range of 19-300Vdc and 40-250Vac with 50/60 Hz operation accommodates mixed plant power rails, simplifying site installation and reducing inventory variety. Application: facilities with mixed AC/DC supply networks and retrofit projects. Feature → Business Impact → Application: Removable terminals and semi-flush mounting streamline installation and field servicing, minimizing downtime and enabling easier upgrades in constrained cabinets. Application: retrofit and new build projects where quick swap-outs and reliable connections matter. Feature → Business Impact → Application: Modbus / DNP3 TCP over LC duplex fiber Ethernet improves remote monitoring and integration with SCADA, enabling proactive maintenance and faster response times. Application: distributed transformer networks and OEM equipment with centralized control. Feature → Business Impact → Application: Sensing inputs include Differential Protection, Current Protection and Metering with Zone selective interlocking (2), delivering precise protection logic and improved coordination. Application: high-reliability transformer protection in substations and industrial plants. Feature → Business Impact → Application: 8 inputs / 9 outputs and Irigd-compatible interfaces support flexible I/O expansion and interoperability with third-party devices. Application: scalable protection for growing facilities and OEM integration.

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FAQs

The device features removable terminals and a semi-flush mounting design, enabling easier wiring and field servicing. Plan for 8 digital inputs and 9 outputs, with a power supply range of 19-300Vdc or 40-250Vac and a 50/60 Hz operating frequency. Ensure compatible control panels and verify any field wiring constraints during retrofit.
Key specs include 8 digital inputs, 9 digital outputs, and dual power supply ranges of 19-300Vdc and 40-250Vac, with 50/60 Hz operation. It supports differential protection, current protection and metering, zone selective interlocking (2), and Modbus/DNP3 TCP communications over fiber. This enables precise protection logic and reliable remote monitoring.
Yes. It is designed as a transformer protection relay with features such as differential protection, current protection and metering, zone selective interlocking, and robust communication options. Its compatibility with Modbus/DNP3 enables integration with SCADA and substation automation systems.
The product page lists compliances as 'Contact Manufacturer.' For critical deployments, verify CE marking, IP ratings, and SIL considerations directly with Eaton to ensure site-specific regulatory and safety compliance.
By consolidating protection, metering, and communication into a single device, you gain faster fault isolation, reduced wiring and panel footprint, easier commissioning, and improved system visibility. Remote diagnostics via Modbus/DNP3 support proactive maintenance, reducing costly outages and extending transformer life.