Eaton ETR-4000-2A3CB0 Transformer relay - Modbus/DNP3

Part Number: ETR-4000-2A3CB0
ETR-4000-2A3CB0
Manufacturer
Eaton
Part number
ETR-4000-2A3CB0
Category

Quick Summary

Eaton transformer relay ETR-4000-2A3CB0 provides robust transformer protection for industrial power systems. This device simplifies integration of protective functions in aging substations and new builds, addressing the challenge of reliable protection and easy remote monitoring. In practice, transformer relays commonly pursue CE and UL certifications and rugged IP-rated enclosures to survive harsh environments; confirm exact certifications with Eaton for your region. The solution supports Modbus TCP or DNP3 TCP/UDP over Ethernet, enabling seamless SCADA integration, remote diagnostics, and coordinated protection across distributed assets. By combining comprehensive protection with flexible power inputs, it delivers measurable business value through reduced downtime, faster fault isolation, and easier maintenance in automation projects.

Product Information

Extended Description

ETR-4000-2A3CB0 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay,5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, , over Ethernet RJ-45,19-300Vdc, 40-250Vac, 50/60 Hz ,Trip Coil Monitor,Sensitive Ground Input
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A3CB0
UPC
786679154458
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 TCP or DNP3 TCP/UDP over Ethernet RJ45
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
IRIG-B Trip Coil Monitor URTD Interface Sensitive Ground Input
Modbus / DNP3 RTU
over Ethernet RJ-45
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
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Feature → Business Impact → Application: Flexible power and I/O options include 8 digital inputs, 9 digital outputs and 2 current sensing inputs, plus a wide power supply range of 19-300Vdc and 40-250Vac. This reduces wiring complexity and enables a single-relay solution to cover protection and metering needs, ideal for retrofits in existing switchgear and new transformer installations. Application: transformer protection in industrial facilities and substations with limited panel space. Feature → Business Impact → Application: Ethernet-based communication with Modbus TCP or DNP3 TCP/UDP over Ethernet RJ45 enables seamless SCADA integration and remote monitoring. It supports coordinated protection across distributed assets, lowering incident response times and enabling predictive maintenance. Application: industrial automation and utility-scale protection schemes. Feature → Business Impact → Application: I/O options such as IRIG-B Trip Coil Monitor, URTD Interface, and Sensitive Ground Input improve fault visibility and ground sensing, reducing false trips and enhancing reliability. Application: high-availability transformer protection in harsh environments. Feature → Business Impact → Application: Conformal coated circuit boards and removable terminals improve reliability in dirty or humid environments and simplify field maintenance. Application: harsh industrial settings and modular retrofits. Feature → Business Impact → Application: Remountable and semi-flush mounting with removable terminals speeds installation and reduces commissioning time. Application: panel builders and field technicians deploying in varied enclosures. Warranty and service support: One-year warranty from installation or eighteen months from shipment provides a clear ownership window and lowers lifecycle risk. Application: procurement planning and service-level expectations for transformer protection deployments.

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FAQs

Yes, the ETR-4000-2A3CB0 is designed for flexible integration with various switchgear configurations. It features removable terminals and a semi-flush mounting method to ease field installation. Ensure the panel cable routing and power supply options match the device’s 19-300Vdc / 40-250Vac range and MDI connections for your specific equipment.
Key specs include 8 digital inputs, 9 digital outputs, 2 current sensing inputs (5A, 1A), a power supply range of 19-300Vdc and 40-250Vac, and a 50/60 Hz frequency rating. It communicates via Modbus TCP or DNP3 TCP/UDP over Ethernet RJ45. These capabilities enable integrated protection, metering, and remote monitoring within a single device.
Yes. The ETR-4000-2A3CB0 is purpose-built for transformer protection and monitoring, supporting Modbus TCP/DNP3 for SCADA integration, IRIG-B Trip Coil Monitor, Sensitive Ground Input, and URTD interface. It is well-suited for substations and manufacturing plants requiring reliable protection, fast fault isolation, and scalable integration with existing automation architectures.
Compliance details should be verified with Eaton for your region. The product documentation indicates 'Compliances: Contact Manufacturer', so regional certifications (such as CE or UL) are region-specific. When planning deployment, confirm applicable certifications with Eaton to ensure regulatory acceptance and warranty validity.
The ETR-4000-2A3CB0 carries a warranty of one year from installation or eighteen months from shipment, whichever occurs first. This, combined with remote monitoring capabilities and reduced downtime from faster fault isolation, supports a favorable total cost of ownership by lowering maintenance costs and extending transformer uptime.