Eaton ETR-5000-2A3BB1 Transformer Relay - RS485 Modbus/DNP3
Part Number: ETR-5000-2A3BB1
Quick Summary
Eaton transformer relay delivers intelligent transformer protection for OEM and industrial power systems. This approach helps engineers reduce fault isolation time and increase safety by centralizing protection logic, metering, and diagnostics in a single device. Compliances are defined by the manufacturer and may include CE markings and other regulatory approvals; confirm the exact certifications with Eaton for your project. With Modbus RTU or DNP3 RTU over RS485, 8 digital inputs and 9 digital outputs, and a power range of 19-300 Vdc / 40-250 Vac, the ETR-5000-2A3BB1 supports scalable protection schemes while simplifying maintenance and commissioning, delivering improved uptime and operational efficiency for critical facilities.
Product Information
Extended Description
ETR-5000-2A3BB1 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay, Modbus RTU or DNP3 RTU over RS485, 5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, over RS-485,19-300Vdc, 40-250Vac, 50/60 HzSensitive Ground InputTrip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-5000-2A3BB1
UPC
786679157800
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
Communication
Modbus RTU or DNP3 RTU over RS485
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 RTU
over RS-485
Phase current
5A, 1A
Sensing inputs
Power Protection and Metering Current Protection and Metering Differential Protection Voltage 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
1
Terminals
Removable
Power metering, monitoring and diagnostics products for OEMs
Power metering, monitoring and diagnostics products for OEMs
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-5000-2A3BB1
Modbus RTU or DNP3 RTU over RS485 enables remote monitoring and seamless SCADA integration, reducing on-site visits and accelerating fault diagnosis. In transformer protection or metering applications, this capability translates to faster response and improved data visibility across the plant. Eight digital inputs and nine digital outputs provide flexible protection logic and status signalling, enabling zone selective interlocking and coordinated tripping strategies that minimize equipment exposure and outage scope. The 19-300 Vdc / 40-250 Vac power supply range supports mixed environments, simplifying installation and reducing inventory requirements for spare power supplies. Conformal coating protects circuit boards in harsh environments, while removable terminals speed wiring and service. The URTD Trip Coil Monitor and IRIG-B options extend diagnostics and time-synchronization for high-availability substations. A base relay option (ETR-4000) allows scalable protection while keeping form factor manageable. Compatibility with wide I/O and communication standards reduces engineering risk and accelerates deployment in OEM equipment and industrial power systems.
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FAQs
Installation should accommodate eight digital inputs and nine digital outputs, with removable terminals to ease wiring. Plan for a 19-300Vdc or 40-250Vac power supply, 50/60 Hz operation, and RS485 communication for Modbus RTU or DNP3 RTU. Consider conformal coating for harsh environments and availability of URTD, IRIG-B, and Sensitive Ground Input options for enhanced protection and monitoring.
The unit supports power from 19-300 Vdc or 40-250 Vac and operates at 50/60 Hz. It features 8 digital inputs and 9 digital outputs, with 2 current sensing inputs. Communication is via Modbus RTU or DNP3 RTU over RS485, enabling remote monitoring and integration with SCADA/EMS systems.
Yes. It is designed as a transformer protection relay with a base relay option (ETR-4000) for scalable protection schemes. Its multiple I/O options, RS485 communications, and time synchronization features (IRIG-B) support OEM equipment integration, diagnostic capabilities, and compliant protection logic for critical transformer applications.
Compliance details are supplied by the manufacturer. The product notes indicate Compliances: Contact Manufacturer, so verify exact certifications (such as CE or other regulatory markings) with Eaton for your project to ensure regulatory alignment and acceptance in your region.
The relay consolidates protection, metering, and diagnostics, reducing on-site maintenance visits and shortening fault diagnostic cycles. Remote communication capabilities and data-rich outputs improve visibility into transformer health, enabling predictive maintenance, faster outage recovery, and overall lifecycle cost reductions in substations and OEM installations.