Eaton ETR-4000-2A3LB1 Transformer Relay - 50/60 Hz
Part Number: ETR-4000-2A3LB1
Quick Summary
Eaton transformer relay ETR-4000-2A3LB1 protects transformers while enabling remote monitoring for industrial power networks. Engineers often struggle with reliable protection coordination and visibility across multi-site installations. Certification status varies by configuration; confirm with Eaton whether CE, IP ratings, or SIL-qualified options apply. Beyond compliance, this device combines robust IO, fiber Ethernet communications, and modular protection logic to reduce downtime and maintenance costs. The result is faster fault isolation and a clearer path to scalable plant protection, with a strong business case for OEMs and utilities alike.
Product Information
Extended Description
ETR-4000-2A3LB1 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay, Mbus TCP or DNP3 TCP/UDP over LC duplex FO Enet, 5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, 19-300Vdc, 40-250Vac, 50/60 Hz, Projection, Sensitive Ground Input,
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A3LB1
UPC
786679155264
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
Mbus TCP or DNP3 TCP/UDP over LC duplex FO Enet
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
Sensitive Ground Input URTD Interface IRIG-B Trip Coil Monitor
Modbus / DNP3 TCP
over LC duplex fiber optic Ethernet
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
Projection
Voltage sensing inputs
0
Terminals
Removable
E-series protective relays
E-series protective relays
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Eaton Specification Sheet - ETR-4000-2A3LB1
8 digital inputs, 9 digital outputs, and 2 current-sensing inputs provide a self-contained protection and control interface, reducing the need for external logic modules. This compact IO architecture translates to faster commissioning, simplified wiring, and fewer potential failure points in transformer protection schemes for substations or package units. The Modbus / DNP3 TCP communications over LC duplex fiber optic Ethernet enable secure, low-latency data exchange with SCADA systems, improving remote visibility and fault diagnosis. Power supply range of 19-300Vdc or 40-250Vac and a 50/60 Hz rating support diverse industrial environments, while removable terminals and projection mounting simplify installation and maintenance. Conformal-coated circuit boards enhance reliability in harsh environments, and the URTD sensitive ground input and IRIG-B trip monitor provide advanced protection timing and fault-traceability. With the ETR-4000 base, you gain a scalable protection platform backed by Eaton’s 25-000 warranty policy, delivering predictable performance and lower lifecycle costs for transformer protection projects.
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FAQs
Begin with the projection-mounting method and secure removable terminals for fast wiring. Connect 8 digital inputs and 9 digital outputs, plus 2 current-sensing inputs. Power the unit with 19-300Vdc or 40-250Vac and integrate it into your network via Mbus TCP or DNP3 TCP/UDP over LC duplex fiber Ethernet. Follow Eaton’s wiring diagrams from the datasheet and program the relay using PowerPort-E for correct protection logic.
Key specs include a 19-300Vdc or 40-250Vac power supply range, 50/60 Hz frequency rating, 8 inputs and 9 outputs, and 2 current-sensing inputs. The device supports Modbus TCP and DNP3 TCP/UDP over fiber, with conformal-coated boards for reliability. Ensure your panel design accommodates the 8x9 I/O count and the required wiring for differential protection and metering functions.
Yes, it is designed for transformer protection and monitoring with rich I/O, differential protection and metering capabilities, and communication options for SCADA integration. Its 50/60 Hz operation and wide power range support diverse substations. For substation deployment, verify enclosure IP rating and any site-specific compliance requirements with Eaton prior to installation.
Compliance details are listed as 'Contact Manufacturer' for this model. To ensure regulatory readiness, confirm with Eaton which certifications apply to your configuration (for example CE or UL equivalents) and verify enclosure protection ratings (IP) with the system integrator or Eaton's technical support prior to field deployment.
The ETR-4000-2A3LB1 reduces downtime by enabling faster fault isolation and centralized protection across transformer assets, lowering maintenance costs over the lifecycle. Maintain firmware and protection logic with Eaton’s PowerPort-E tool, perform periodic inspections of the removable terminals, and monitor fiber network health. The warranty offers one year from installation or eighteen months from shipment, whichever comes first, providing initial risk mitigation for asset protection projects.