Eaton transformer relay ETR-4000-2A2LA1 - Mbus/DNP3
Part Number: ETR-4000-2A2LA1
Quick Summary
The Eaton transformer relay ETR-4000-2A2LA1 provides transformer protection for industrial plants. Maintenance teams often wrestle with nuisance trips and complex wiring when protecting transformers. Common certifications for this class include CE marking and SIL-rated safety options; IP-rated enclosures are available by configuration. This solution integrates clear diagnostics and remote monitoring with Mbus TCP or DNP3 TCP/UDP over LC fiber Ethernet, delivering reliable protection while supporting scalable control architectures and enhanced operational efficiency.
Product Information
Extended Description
ETR-4000-2A2LA1 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-4000-2A2LA1
UPC
786679154298
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
None
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
IRIG-B Trip Coil Monitor Sensitive Ground Input URTD Interface
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-4000-2A2LA1
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: 8 digital inputs and 9 digital outputs enable comprehensive monitoring and fast, rule-based actions at the device level, reducing run-time faults and unplanned outages in transformer circuits. This supports precise current protection and metering, improving protection accuracy in substations and plants. Application: transformer protection in medium- to large-scale electrical systems with strict fault isolation requirements. Feature → Business Impact → Application: Mbus TCP or DNP3 TCP/UDP over LC duplex fiber Ethernet enables secure, networked communication to supervisory systems, enabling remote diagnostics and faster fault localization. Application: integration with modern SCADA and energy management ecosystems for improved visibility. Feature → Business Impact → Application: Power supply range of 19-300 Vdc / 40-250 Vac covers diverse plant power architectures, simplifying installation and reducing conduit and supply stocking costs. Application: retrofit or new installs across mixed voltage environments. Feature → Business Impact → Application: Zone selective interlocking and IRIG-B interface provide coordinated protection and time synchronization, enabling precise event sequencing and improved interoperability in protection schemes. Application: high-reliability transformer protection in substations and process industries. Feature → Business Impact → Application: Differential protection and metering capabilities support accurate fault detection and energy accounting, aiding compliance with reporting requirements and maintenance planning. Application: utilities and industrial facilities requiring rigorous protection analytics.
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FAQs
Install the unit using the projection mounting method and removable terminals. Connect eight digital inputs and nine outputs according to the transformer protection scheme, and wire the power supply within 19-300 Vdc or 40-250 Vac. Configure Mbus TCP or DNP3 TCP/UDP over LC duplex fiber Ethernet for remote monitoring and SCADA integration.
The relay supports 8 digital inputs, 9 digital outputs, and 2 current sensing inputs. It accepts 19-300 Vdc or 40-250 Vac power, operates at 50/60 Hz, and offers Modbus/DNP3 communication over fiber Ethernet. Zone selective interlocking is available, with IRIG-B and various protective functions for transformer health and metering.
Yes. Its transformer protection functionality, differential protection and metering, plus zone selective interlocking, are designed for substation and industrial applications. The device supports remote monitoring via Mbus TCP or DNP3 over LC fiber Ethernet, enabling fast fault localization and coordinated protection actions in complex power networks.
Compliance details are provided by the manufacturer. The product line typically supports CE marking and related safety approvals, with SIL-rated options and IP-rated enclosures available depending on configuration. Always verify the exact certifications for your installation with Eaton to ensure regulatory alignment.
The ETR-4000-2A2LA1 reduces downtime through accurate protection, fast fault reporting, and remote diagnostics over fiber Ethernet. Its removable terminals and broad input/output capabilities simplify installation and future upgrades, while integrated metering supports energy reporting for better asset management and return-on-investment calculations.