Eaton ETR-4000-2A1BB0 Transformer Relay - RS-485 Modbus

Part Number: ETR-4000-2A1BB0
ETR-4000-2A1BB0
Manufacturer
Eaton
Part number
ETR-4000-2A1BB0
Category

Quick Summary

Eaton transformer relay ETR-4000-2A1BB0 protects transformer assets by providing protection, metering, and control functions over Modbus RTU or DNP3 RTU via RS-485. Integrators often struggle with integrating protective relays into existing SCADA systems, ensuring reliable fault isolation, and achieving remote diagnostics. This device supports robust communications, a wide power-supply range, and extensive I/O to streamline field installation. Designed for transformer protection in industrial plants and substations, it enables scalable monitoring and coordinated protection while fitting seamlessly into OEM equipment. By combining transformer protection with metering data, you gain actionable insights for maintenance planning, energy management, and uptime optimization.

Product Information

Extended Description

ETR-4000-2A1BB0 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 Hz Sensitive Ground Input,Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A1BB0
UPC
786679154106
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
Sensitive Ground Input Trip Coil Monitor IRIG-B URTD Interface
Modbus / DNP3 RTU
over RS-485
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
Semi-flush
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-4000-2A1BB0
Feature → Business Impact → Application: Flexible I/O and communications with 8 digital inputs and 9 digital outputs, plus 2 current sensing inputs, enables rich protection schemes and accurate metering data. This translates to faster fault localization, improved protection selectivity, and easier integration with SCADA via RS-485 Modbus RTU or DNP3 RTU; ideal for transformer protection in substations and OEM panels. Feature → Business Impact → Application: Wide power-supply range of 19-300 Vdc and 40-250 Vac supports installations across multiple regions without additional power architecture changes, reducing wiring and inventory complexity while enabling true global deployment in plants with diverse electrical systems. Feature → Business Impact → Application: Conformal coated circuit boards provide reliability in harsh environments, extending service life in outdoor or humid locations and lowering maintenance costs on long-term transformer installations. Feature → Business Impact → Application: Zone selective interlocking with 2 interlocks accelerates fault isolation, minimizes outage duration, and improves system stability in critical power networks. Feature → Business Impact → Application: I/O options like Sensitive Ground Input and Trip Coil Monitor, plus IRIG-B and URTD interfaces, enhance synchronization, fault-traceability, and off-site diagnostics for mission-critical transformer protection. Feature → Business Impact → Application: Modular communication capability with Modbus RTU or DNP3 RTU over RS-485 simplifies OEM integration and retrofit projects, reducing engineering time and enabling seamless data exchange with modern energy management systems.

Get a Quick Quote for a Eaton ETR-4000-2A1BB0

Chat with us on WhatsApp - fast responses guaranteed

Need to speak with someone? We'll call you back within 2 hours during business hours

Interested in Eaton ETR-4000-2A1BB0? Enquire Now

FAQs

The unit uses removable terminals and a semi-flush mounting method for straightforward integration into control panels. With eight digital inputs and nine outputs plus two current sensing inputs, plan wiring to minimize cross-talk and ensure secure RS-485 connections for Modbus RTU or DNP3 RTU communication. Verify clearance for maintenance access and ensure conformity with the Eaton mounting guidelines.
Yes. The device supports both Modbus RTU and DNP3 RTU over RS-485, enabling seamless integration with SCADA, HMIs, and energy-management systems. Use the appropriate protocol configuration in the fieldbus settings and ensure terminator resistors are properly placed at each RS-485 segment to maintain signal integrity across the protection relay network.
Key features include 8 inputs, 9 outputs, 2 current sensing inputs, zone selective interlocking, and a Trip Coil Monitor. This combination enables fast fault recognition and selective tripping, reducing outage duration and improving reliability. The relay’s metering capabilities also provide data for post-fault analysis, enabling preventative maintenance and optimization of protection settings.
Important specs include the power-supply range (19–300 Vdc or 40–250 Vac) and the 50/60 Hz frequency rating, 8 digital inputs, 9 digital outputs, and 2 current-sensing inputs. The Conformal Coated Circuit Boards improve reliability in challenging environments, while removable terminals simplify wiring and future upgrades.
Official resources include Eaton specification sheets and brochures, as well as instructional videos. Refer to the Eaton Specification Sheet for ETR-4000-2A1BB0, the product datasheet, and the available brochures for detailed installation, configuration, and application guidance. Multimedia assets provide practical demonstrations for protection and control scenarios.