Eaton transformer relay ETR-4000-2A0EA0 - Profibus-DP over D-SUB / RS485

Part Number: ETR-4000-2A0EA0
ETR-4000-2A0EA0
Manufacturer
Eaton
Part number
ETR-4000-2A0EA0
Category

Quick Summary

Eaton transformer relay is a protective device used to monitor transformer health and trigger protection in industrial power systems. Many engineers struggle with integrating protection relays into Profibus-DP networks and ensuring reliable operation across fluctuating power supplies. Certification details should be confirmed with the manufacturer, but common protections include CE marking, SIL considerations, and robust IP-related approvals; verify exact approvals via the official Eaton datasheet. This model supports Profibus-DP over D-SUB/RS485 and offers a wide power range, helping meet plant-wide protection requirements while minimizing wiring complexity. For reliability and ROI, the Eaton transformer relay aligns with standard control architectures and scalable I/O, delivering fast fault isolation and improved maintenance planning.

Product Information

Extended Description

ETR-4000-2A0EA0 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay, Profibus-DP over D-SUB / RS485, 5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, over D-Sub / RS-485, 19-300Vdc, 40-250Vac, 50/60 Hz Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A0EA0
UPC
786679154816
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
Profibus-DP over D-SUB / RS485
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
Trip Coil Monitor IRIG-B URTD Interface
Phase current
5A, 1A
PROFIBUS-DP
over D-Sub / RS-485
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
Semi-flush
Voltage sensing inputs
0
Terminals
Removable
Power metering, monitoring and diagnostics products for OEMs Power metering, monitoring and diagnostics products for OEMs Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Introduction to Eaton's E-Series Relay, Step 1: Physical Connections Eaton Specification Sheet - ETR-4000-2A0EA0
Power supply flexibility enables installation across diverse plants: 19-300Vdc or 40-250Vac with 50/60 Hz operation reduce the need for multiple power converters, cutting installation time and costs. Resulting protection schemes can be deployed quickly, improving uptime and reducing maintenance cycles in transformer-based systems. The device’s 8 digital inputs and 9 outputs, plus 2 current sensing inputs, create rich protection logic and metering capability, enabling precise fault detection and faster isolation in substations and OEM equipment. This translates to lower outage impact and better coordination with Zone Selective Interlocking strategies. Profibus-DP over D-Sub / RS485 enables seamless integration into existing PLC/DCS networks, minimizing engineering effort and ensuring reliable communication with control systems. I/O options like Trip Coil Monitor, IRIG-B, and URTD Interface provide time synchronization and remote diagnostics, supporting compliant, auditable protection that reduces field debugging time. Removable terminals and semi-flush mounting simplify field wiring and maintenance, helping technicians commission and service units without panel redesigns. The compact footprint (8.06 in depth, 8.7 in height, 9.72 in width) and 9.3 lb weight support straightforward panel placement and equipment rearrangements, while Eaton’s one-year (or 18-month from shipment) warranty mitigates risk in OEM deployments. Overall, the ETR-4000-2A0EA0 combines flexible power, rich I/O, and networked protection to support efficient transformer protection programs with predictable total cost of ownership.

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FAQs

The ETR-4000-2A0EA0 uses removable terminals and a semi-flush mounting method, facilitating quick wiring and secure panel fitment. Plan for space to accommodate its 9.72-inch width and 8.7-inch height. Ensure Profibus-DP RS485 wiring is routed away from high-noise sources, and follow Eaton’s installation guidelines in the datasheet for proper terminal torque and shielding to maintain signal integrity.
Key electrical specs include a power supply range of 19–300 VDC or 40–250 VAC with 50/60 Hz frequency, 8 digital inputs and 9 digital outputs, plus 2 current sensing inputs. The unit supports differential and current protection with metering capabilities, and optional I/O features such as Trip Coil Monitor and IRIG-B. These specs enable flexible protection schemes across diverse plant networks.
Yes, the ETR-4000-2A0EA0 includes Profibus-DP over D-Sub / RS-485 communication, enabling straightforward integration with existing PLC and DCS environments. This compatibility reduces wiring complexity and engineering effort while delivering reliable data exchange for protection logic, diagnostics, and remote monitoring across control networks.
The ETR-4000-2A0EA0 is covered by Eaton’s warranty policy 25-000, providing one year from installation or eighteen months from shipment, whichever occurs first. In practice, this protects against manufacturing defects and supports planned maintenance. For specific terms, timelines, and service options, consult Eaton’s official warranty documentation and your purchasing agreement.
Technical documents are available through Eaton’s resources, including the specification sheet, product brochures, and installation videos. Notable assets include the Eaton Specification Sheet - ETR-4000-2A0EA0 (PDF) and operator guides, plus multiple multimedia tutorials illustrating physical connections and network setup. Access these via the product page or the provided downloads in the catalog.