Eaton transformer relay ETR-4000-2A1FA0 - 50/60 Hz

Part Number: ETR-4000-2A1FA0
ETR-4000-2A1FA0
Manufacturer
Eaton
Part number
ETR-4000-2A1FA0
Category

Quick Summary

Eaton transformer relay protects transformers by monitoring critical electrical parameters in power systems. Maintenance teams often grapple with false trips and slow fault isolation that disrupt uptime. Compliance considerations vary by region, so verify certifications with the manufacturer for CE, UL, and applicable IP ratings. Leveraging Modbus RTU or DNP3 RTU over fiber enables seamless remote monitoring, data-driven maintenance, and faster decision-making, reducing outages and optimizing asset utilization.

Product Information

Extended Description

ETR-4000-2A1FA0 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay, Modbus RTU or DNP3 RTU , 5A, 1A, 40-250 Vac, 19-300 Vdc,Transformer, 19-300Vdc, 40-250Vac, 50/60 Hz , Sensitive Ground Input,Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A1FA0
UPC
786679155134
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
Modbus RTU or DNP3 RTU over Fiber Optic ST
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
Sensitive Ground Input Trip Coil Monitor URTD Interface IRIG-B
Modbus / DNP3 RTU
over fiber optic ST
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
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-4000-2A1FA0
The ETR-4000-2A1FA0 builds on a robust transformer protection relay platform with eight digital inputs and nine digital outputs, enabling versatile control and signaling for complex transformer protection schemes. This configuration supports two current sensing inputs and a 19-300 VDC / 40-250 VAC power supply range, delivering reliable operation across diverse installation environments and voltage levels, which translates into fewer power interruptions and easier site integration. The unit operates at 50/60 Hz and offers Modbus RTU or DNP3 RTU communications over fiber optic ST, delivering secure, low-latency data to SCADA and historian systems for proactive maintenance planning and fault analysis. Zone selective interlocking (2) enhances selective tripping, minimizing collateral outages and improving system resilience in substations. With URTD interface and IRIG-B options, operators gain precise time stamping and synchronization for event correlation and post-event analysis, supporting a modern, data-driven protection strategy. The base relay, ETR-4000, combines rugged construction with removable terminals for quick commissioning and maintenance, while the flexible I/O set supports sensitive ground input and trip coil monitoring, reducing misoperation risk and enabling faster fault isolation in real-world transformer protection applications.

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FAQs

The ETR-4000-2A1FA0 supports eight digital inputs and nine digital outputs with removable terminals and semi-flush mounting, plus two current sensing inputs and a wide power supply range (19-300 VDC, 40-250 VAC). It is designed to pair with the base ETR-4000 relay, enabling straightforward installation and future expansion in substation or industrial transformer protection schemes.
Using Modbus RTU or DNP3 RTU over fiber optic ST provides secure, low-latency communications to SCADA systems, reduces wiring complexity, and enables centralized monitoring and alerts. This setup supports timely fault diagnosis, faster maintenance planning, and improved visibility into transformer protection status without exposing field devices to electromagnetic interference.
Yes, the ETR-4000-2A1FA0 includes zone selective interlocking (2). This feature improves fault discrimination, enabling selective tripping of only the affected transformer zones. The outcome is reduced outage scope, minimized production impact, and faster restoration after transient faults in multidimensional transformer configurations.
Key specs include a flexible power supply range of 19-300 VDC or 40-250 VAC, 50/60 Hz operation, two current sensing inputs, eight digital inputs, and nine digital outputs. The device supports 5A or 1A phase currents, functional I/O options like Sensitive Ground Input and Trip Coil Monitor, and multiple communication modes over fiber for integration with protection schemes and control rooms.
The product follows Eaton’s warranty policy 25-000: one year from installation or eighteen months from shipment, whichever occurs first. Certification details are provided by the manufacturer; please consult Eaton for CE, UL, IP ratings, and any region-specific compliance documentation before installation.