Eaton ETR-4000-2A3BB0 Transformer Relay - Modbus RTU over RS485

Part Number: ETR-4000-2A3BB0
ETR-4000-2A3BB0
Manufacturer
Eaton
Part number
ETR-4000-2A3BB0
Category

Quick Summary

Eaton transformer relay ETR-4000 provides transformer protection in industrial power systems. Engineers often struggle with misconfigurations, slow fault diagnosis, and complex wiring that extend downtime. Note: Public certifications are not listed here; for CE, SIL or IP ratings, please contact Eaton. Designed for modular integration and SCADA connectivity, it supports Modbus RTU over RS485, DNP3 RTU, and robust fault monitoring. With eight digital inputs and nine outputs, configuration aligns with standard protection schemes while easing field wiring. Power can be supplied from 19-300 Vdc or 40-250 Vac, enabling flexible installation on diverse plant rails. Its conformal-coated circuit boards and removable terminals support harsher environments and simplified maintenance.

Product Information

Extended Description

ETR-4000-2A3BB0 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-4000-2A3BB0
UPC
786679155141
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 IRIG-B Sensitive Ground Input Trip Coil Monitor
Modbus / DNP3 RTU
over RS-485
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
Semi-flush
Voltage sensing inputs
0
Terminals
Removable
Power metering, monitoring and diagnostics products for OEMs Power metering, monitoring and diagnostics products for OEMs Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard Eaton Specification Sheet - ETR-4000-2A3BB0
Feature: Communication options include Modbus RTU or DNP3 RTU over RS485. Business Impact: Enables seamless SCADA integration, centralized monitoring, and faster fault diagnosis with fewer field connections. Application: Transformer protection in substations and OEM equipment. Feature: Wide power-supply range supports 19-300 Vdc and 40-250 Vac with 50/60 Hz compatibility. Business Impact: Reduces power-rail constraints and simplifies installation across mixed facilities. Application: Distributed plant environments with diverse electrical rails. Feature: Eight digital inputs and nine digital outputs provide ample control and signaling capacity. Business Impact: Cuts external I/O panels, lowers wiring complexity, and accelerates protection scheme deployment. Application: Alarm annunciation, interlocks, and remote signaling in transformer bays. Feature: Differential protection, current protection, and metering sensing inputs deliver precise fault detection. Business Impact: Improves reliability, reduces nuisance trips, and supports accurate metering data for energy management. Application: Protective relaying and monitoring across transformers. Feature: URTD Interface IRIG-B timing, Sensitive Ground Input, and Trip Coil Monitor enhance timing accuracy and safety. Business Impact: Ensures synchronized gating, safer operation, and robust trip verification. Application: Critical power distributions and automated shutdown sequences. Feature: Conformal-coated circuit boards and removable terminals simplify maintenance in harsh environments. Business Impact: Increases durability, reduces downtime during servicing. Application: Outdoor or humid substation installations and rugged industrial floors.

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FAQs

The ETR-4000-2A3BB0 uses removable terminals and supports 19-300Vdc or 40-250Vac power. Plan a clean panel layout with eight digital inputs and nine outputs for protection signaling. Follow the manufacturer’s wiring diagram for RS485 communication (Modbus RTU or DNP3 RTU) to ensure correct SCADA integration and fault reporting.
Key specs include power supply range (19-300Vdc, 40-250Vac), frequency rating (50/60 Hz), eight digital inputs, nine digital outputs, and two current-sensing inputs. It supports Modbus RTU or DNP3 RTU over RS485, enabling reliable remote monitoring and control within transformer protection schemes.
Yes. It is designed as a transformer protection relay with capabilities for differential protection, current protection, and metering. Its RS485 communications allow integration with SCADA systems, making it suitable for utilities and OEM transformer applications requiring reliable fault detection and fast tripping.
Public certifications are not listed in the provided data. For CE, SIL, IP ratings, or other regulatory certifications, please contact Eaton directly to confirm current approvals and compatibility with your installation standards.
The relay consolidates multiple functions—protection, metering, and signaling—into a single unit, reducing external hardware and wiring. Its conformal coating and removable terminals simplify maintenance in harsh environments, potentially lowering downtime and service costs while improving fault visibility and asset uptime.