Eaton transformer relay ETR-4000-2A2IB1 - RS-485 & Ethernet
Part Number: ETR-4000-2A2IB1
Quick Summary
The Eaton transformer relay ETR-4000-2A2IB1 provides advanced transformer protection and monitoring for power distribution systems. Engineers often struggle with integrating protection logic across devices and achieving fast, reliable fault isolation in transformer feeders. Compliance details are provided by the manufacturer; specific SIL, CE, or IP ratings are listed in the official datasheet. With a universal power range of 19-300 Vdc or 40-250 Vac and communication over RS-485 and Ethernet, this relay scales from OEM equipment to plant-wide protection. It supports scalable I/O, remote monitoring, and easy integration with SCADA, delivering tangible improvements in uptime and maintenance efficiency.
Product Information
Extended Description
ETR-4000-2A2IB1 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay,5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, over RS-485, over Ethernet RJ-45,19-300Vdc, 40-250Vac, 50/60 Hz, Projection,Sensitive Ground Input,Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A2IB1
UPC
786679154380
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
URTD Interface IRIG-B Trip Coil Monitor Sensitive Ground Input
Modbus / DNP3 RTU
over RS-485
Modbus / DNP3 TCP
over Ethernet RJ-45
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
Power metering, monitoring and diagnostics products for OEMs
Power metering, monitoring and diagnostics products for OEMs
Eaton Distribution and Transformer Relays
Eaton Distribution and Transformer Relays
Eaton Distribution and Transformer Relays
Eaton Distribution and Transformer Relays
Eaton Distribution and Transformer Relays
Eaton Distribution and Transformer Relays
Eaton Distribution and Transformer Relays
Eaton Specification Sheet - ETR-4000-2A2IB1
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Eight digital inputs and nine digital outputs, two current-sensing inputs, and removable terminals enable flexible protection logic without excessive field wiring. Business Impact: Reduces commissioning time and wiring errors, lowering on-site labor costs. Application: Ideal for transformer protection schemes in switchgear and OEM equipment. Feature: Modbus RTU over RS-485 and Modbus TCP over Ethernet provide seamless plant-wide communication. Business Impact: Simplifies integration with PLCs, SCADA, and energy meters, cutting engineering effort. Application: Stand-alone protection nodes or integrated protective relays in substations. Feature: Universal power supply range 19-300 Vdc / 40-250 Vac and 50/60 Hz operation. Business Impact: Global compatibility reduces spare parts variety and simplifies sourcing. Application: Suitable for multinational facilities and OEM installations. Feature: URTD Interface IRIG-B, Trip Coil Monitor, Sensitive Ground Input as I/O options. Business Impact: Enhanced trip coordination and fault signaling for precise protection. Application: Time synchronization and coil-monitoring in transformer feeders. Feature: Zone selective interlocking, 2 inputs for current sensing, and differential protection capabilities. Business Impact: Improves selectivity and fault-finding speed, minimizing outage impact. Application: Critical transformer protection in complex switchgear configurations. Feature: Projection mounting and conformal coating for rugged environments. Business Impact: Improves reliability in harsh industrial settings and simplifies field servicing. Application: installations in dusty, humid, or vibration-prone environments.
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FAQs
The unit uses projection mounting with removable terminals, facilitating quick field installation and straightforward wiring revisions while preserving solid enclosure fit and access.
Power supply range is 19-300 Vdc or 40-250 Vac at 50/60 Hz. Communications include Modbus RTU over RS-485 and Modbus TCP over Ethernet, enabling PLC/SCADA integration.
Ideal for transformer protection with current sensing and differential protection, zone selective interlocking, and trip-coil monitoring in switchgear, OEM equipment, and substation interfaces.
Compliance details are provided by the manufacturer; refer to the official datasheet and Eaton documentation for SIL, CE, IP, and related standards applicable to your region.
By reducing wiring complexity, enabling remote monitoring, and supporting time-synchronized protection, it lowers maintenance time, accelerates fault diagnosis, and improves system availability.