Eaton ETR-4000-2A3KA1 Transformer Relay - 50/60 Hz

Part Number: ETR-4000-2A3KA1
ETR-4000-2A3KA1
Manufacturer
Eaton
Part number
ETR-4000-2A3KA1
Category

Quick Summary

Eaton transformer relay ETR-4000-2A3KA1 delivers robust transformer protection for industrial power systems. Operators and engineers often struggle with integrating protection logic across multiple inputs and remote monitoring channels; this unit consolidates protection, metering, and signaling in a single platform. While specific CE, SIL, or IP certifications depend on configuration, Eaton advises verifying compliance details with the manufacturer. With 50/60 Hz operation, wide input ranges, and versatile I/O, this transformer relay supports reliable protection in modern facilities, enabling faster response and easier integration with Modbus, DNP3, and fiber networks.

Product Information

Extended Description

ETR-4000-2A3KA1 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay,5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, , 19-300Vdc, 40-250Vac, 50/60 Hz, Projection, Trip Coil MonitorSensitive Ground Input
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A3KA1
UPC
786679155110
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
URTD Interface Trip Coil Monitor IRIG-B Sensitive Ground Input
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
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Feature: Eight digital inputs and nine digital outputs with two current sensing inputs. Business Impact: Enables comprehensive protection schemes and accurate fault signaling without external modules, reducing wiring complexity and potential points of failure. Application: Transformer protection in substations and industrial plants requiring reliable digital I/O for control logic. Feature: Power supply range 19-300 Vdc / 40-250 Vac and 50/60 Hz compatibility. Business Impact: Flexible, plug-and-play installation across diverse power environments, lowering lifecycle costs and stocking requirements. Application: New builds and retrofits where multiple power architectures coexist. Feature: I/O options including URTD Interface, Trip Coil Monitor, IRIG-B, and Sensitive Ground Input. Business Impact: Expanded monitoring, time synchronization, and trip reliability for critical transformer protections. Application: OEM equipment and end-user facilities with stringent monitoring and coordination needs. Feature: Modbus / DNP3 TCP over LC duplex fiber optic Ethernet. Business Impact: Secure, real-time remote monitoring and integration with central SCADA or MES systems, improving uptime and analytics. Application: Control centers and remote substations requiring robust communications. Feature: Zone Selective Interlocking support (2). Business Impact: Reduces incident energy and improves selectivity, enabling faster, coordinated trips. Application: Large transformer banks and feeders where staged protection enhances reliability. Feature: Differential Protection, Current Protection, and Metering sensing. Business Impact: Enhanced fault detection and accurate energy accounting, supporting compliance and performance analytics. Application: Protection relays in power distribution networks and industrial transformers.

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FAQs

Begin by locating the projection mounting area and installing the unit with the removable terminals accessible for field wiring. Connect the eight digital inputs and nine digital outputs to your control logic, reference the 19-300 Vdc / 40-250 Vac power supply range, and ensure proper grounding. Use the URTD interface and Trip Coil Monitor where required and verify Modbus or DNP3 TCP communication over LC duplex fiber for remote monitoring. Follow Eaton's installation guidelines and consult the manufacturer for any site-specific wiring standards.
Key specifications include eight digital inputs, nine digital outputs, two current sensing inputs, 5 A / 1 A phase current sensing, power supply range of 19-300 Vdc or 40-250 Vac, and operation at 50/60 Hz. It supports Zone Selective Interlocking (2), differential protection, current protection, metering, and IRIG-B time synchronization, enabling precise protection coordination and monitoring in transformer-based systems.
Yes. The unit includes Zone Selective Interlocking functionality (2) to improve selective tripping and reduce fault energy in transformer banks. This capability helps minimize equipment wear and downtime by coordinating protection across sections of a substation or plant, especially in networks with multiple transformers and feeders.
Manufacturer-listed compliance is not specified in the data; Eaton notes to contact the manufacturer for compliance details. Before deployment, verify CE, SIL, IP ratings, and any regional regulatory certifications with Eaton to ensure compatibility with your facility's safety and reliability requirements.
ROI is driven by reduced fault energy, faster and coordinated trips, and streamlined maintenance. The device's integrated protection, metering, and remote communication capabilities lower downtime, improve reliability, and simplify integration with SCADA/DCS systems, which collectively shorten mean time to repair and optimize energy management in critical infrastructure.