Eaton ETR-4000-2A1KA1 Transformer Relay - 50/60 Hz
Part Number: ETR-4000-2A1KA1
Quick Summary
The Eaton transformer relay protects and monitors transformers in industrial facilities, delivering reliable protection and scalable monitoring. Many installations struggle with coordinating protection logic across eight digital inputs and nine outputs, risking downtime. Compliance details vary by region; exact CE, SIL, and IP ratings should be confirmed with Eaton for your project. This model supports 19-300 Vdc and 40-250 Vac power, 50/60 Hz operation, and rich I/O for integration with modern automation. It features eight digital inputs and nine outputs, plus two current-sensing inputs, enabling complex protection schemes such as zone selective interlocking. Its modular design with removable terminals simplifies field wiring and maintenance, reducing installation time and lifecycle cost.
Product Information
Extended Description
ETR-4000-2A1KA1 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 Monitor,Sensitive Ground Input
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A1KA1
UPC
786679154731
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
IRIG-B Trip Coil Monitor URTD Interface Sensitive Ground Input
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
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-4000-2A1KA1
Flexible I/O and protection logic give you robust transformer protection in a compact package: eight digital inputs, nine outputs, and two current-sensing inputs enable sophisticated protection sequences and zone selective interlocking, reducing fault impact and downtime. In transformer protection applications, this translates to faster, more accurate fault isolation and easier commissioning as system complexity grows. The device’s wide power supply range and 50/60 Hz operation simplify deployment across global sites, reducing panel variants and spare parts. Advanced communications, including Modbus TCP and DNP3 TCP over LC duplex fiber Ethernet, enable secure, low-latency SCADA integration and improved visibility for predictive maintenance. A suite of I/O enhancements—IRIG-B Trip Coil Monitor, URTD Interface, and Sensitive Ground Input—improves timing accuracy and fault tracing. Finally, removable terminals and projection mounting streamline installation and field servicing, delivering lower lifecycle costs and faster ROI.
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FAQs
Begin by verifying the power supply is within 19-300 Vdc or 40-250 Vac and that 50/60 Hz is applied. Mount the unit using projection mounting and connect wiring to the removable terminals for eight digital inputs, nine outputs, and two current-sensing inputs. Use the IRIG-B, Trip Coil Monitor, URTD interface, and Sensitive Ground Input options as required by your protection scheme. Finally, configure Modbus or DNP3 TCP communication over fiber to integrate with the plant SCADA.
Key specs include 8 digital inputs, 9 outputs, 2 current-sensing inputs, a power supply range of 19-300 Vdc or 40-250 Vac, and a frequency rating of 50/60 Hz. The device supports a transformer protection role with a base relay (ETR-4000) and must be wired through removable terminals for reliable field connections.
Yes, it is designed as a transformer protection relay with scalable I/O, zone selective interlocking, and support for modern communication protocols, making it suitable for industrial transformer protection and monitoring in substations and large plants.
Compliance details are listed as 'Contact Manufacturer' in the data. For specific CE, SIL, or IP ratings, consult Eaton to confirm which certifications apply to your region and installation.
Removable terminals and projection mounting speed installation and service, reducing maintenance time. Zone selective interlocking and robust SCADA integration minimize outage duration and improve protection coordination, contributing to lower total cost of ownership and faster return on investment.