Eaton ETR-4000-2A0BB1 Transformer Relay - RS-485 Modbus RTU
Part Number: ETR-4000-2A0BB1
Quick Summary
The Eaton ETR-4000-2A0BB1 Transformer Relay delivers transformer protection and monitoring for industrial electrical systems. This solution helps prevent outages by quickly detecting anomalies in current, voltage, and phase relationships. While no explicit certifications are listed in the data, typical transformer relays align with industry standards such as CE/UL in many deployments; confirm with Eaton for any SIL or IP ratings applicable to your installation. By leveraging Modbus RTU or DNP3 RTU over RS-485, customers gain seamless integration with existing control architectures, enabling proactive maintenance and improved asset uptime without sacrificing protection accuracy or scalability.
Product Information
Extended Description
ETR-4000-2A0BB1 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, Projection, Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A0BB1
UPC
786679154625
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
IRIG-B URTD Interface Trip Coil Monitor
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
Projection
Voltage sensing inputs
0
Terminals
Removable
E-series protective relays
E-series protective 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 Distribution and Transformer Relays
Eaton Specification Sheet - ETR-4000-2A0BB1
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: The ETR-4000-2A0BB1 offers eight digital inputs and nine outputs, enabling comprehensive I/O management for transformer protection logic. This configuration supports robust fault detection workflows and reduces wiring complexity on installation sites, ideal for substations and industrial plants requiring reliable remote monitoring. Feature → Business Impact → Application: It supports two current sensing inputs and a wide power supply range (19-300 VDC, 40-250 VAC) with 50/60 Hz operation, which translates to flexible integration with diverse plant power architectures and improved protection accuracy across varying supply conditions. Feature → Business Impact → Application: RS-485 communication with Modbus RTU or DNP3 RTU provides interoperable remote control and data logging, enabling proven interoperability with existing SCADA and industrial networks. Feature → Business Impact → Application: The device includes IRIG-B URTD interface options and a Trip Coil Monitor, delivering enhanced fault localization, faster fault isolation, and safer shutdown sequencing in critical transformer protection scenarios. Feature → Business Impact → Application: Conformal coated circuit boards and removable terminals simplify field service and environmental robustness, reducing maintenance downtime and enabling easier retrofits in harsh industrial environments. Feature → Business Impact → Application: Projection mounting and a compact, sturdy form factor support quick integration into panel assemblies and control rooms, improving install times and reducing total cost of ownership while maintaining high protection standards.
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FAQs
The ETR-4000-2A0BB1 communicates over RS-485 using Modbus RTU or DNP3 RTU, enabling seamless integration with most existing SCADA and control systems. With eight digital inputs and nine outputs, it can interface directly with local protection schemes while providing status and event data to the central control system for coordinated protection.
Key specs include a power supply range of 19-300 VDC and 40-250 VAC, 50/60 Hz operation, two current sensing inputs, eight digital inputs, nine digital outputs, and phase current ratings of 5A and 1A. It supports Modbus RTU or DNP3 RTU over RS-485 for reliable remote communication.
Yes. The ETR-4000-2A0BB1 is designed as a transformer protection relay with features like current protection and metering, differential protection capabilities, and a Trip Coil Monitor. Its RS-485 communications and zone interlocking (2) enhance selective tripping, reducing outage impact in distribution environments.
The data indicates Compliances: Contact Manufacturer, meaning no public certification details are listed. For critical deployments, verify with Eaton whether CE, UL, IP ratings, or SIL certifications apply to your region and project standards, and obtain any necessary documentation before purchase.
Maintenance benefits include removable terminals for easier field service, conformal coating for hostile environments, and projection mounting that simplifies retrofits. ROI is driven by reduced downtime through faster fault localization, online monitoring via Modbus/DNP3, and a one-year warranty (or 18 months from shipment) that minimizes long-term ownership risk.