Eaton ETR-5000-2A2IA1 Transformer Relay - RS-485 & Ethernet
Part Number: ETR-5000-2A2IA1
Quick Summary
Transformer relay protects industrial power transformers by monitoring voltage, current, and fault conditions. Factories and substations often struggle with coordinating protection devices and securing reliable, time-synced communications across Modbus RS-485 and Ethernet networks. ETR-5000-2A2IA1 offers 8 digital inputs, 9 digital outputs, and 2 current sensing inputs along with a wide power range (19-300 Vdc, 40-250 Vac) and 50/60 Hz compatibility. Compliance details should be verified with Eaton; look for CE, UL, and IP-related certifications from the manufacturer to match your project requirements. With its projection mounting, removable terminals, and URTD interface options, the unit supports fast installation, easier maintenance, and scalable transformer protection in modern automation architectures.
Product Information
Extended Description
ETR-5000-2A2IA1 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay,5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, over RS-485, over Ethernet RJ-45, 19-300Vdc, 40-250Vac, 50/60 Hz, Projection,Sensitive Ground Input,Trip Coil Monitor,
Product Name
Eaton transformer relay
Catalog Number
ETR-5000-2A2IA1
UPC
786679157176
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
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
URTD Interface Sensitive Ground Input IRIG-B Trip Coil Monitor
Modbus / DNP3 RTU
over RS-485
Modbus / DNP3 TCP
over Ethernet RJ-45
Phase current
5A, 1A
Sensing inputs
Voltage Protection and Metering Differential Protection Current Protection and Metering Power 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
1
Terminals
Removable
E-series protective relays
E-series protective relays
Eaton Distribution and Transformer Relays
Eaton Distribution and Transformer Relays
Eaton Distribution and Transformer Relays
Eaton Distribution and Transformer Relays
Eaton Distribution and Transformer Relays
Eaton Distribution and Transformer Relays
Eaton Distribution and Transformer Relays
Eaton Specification Sheet - ETR-5000-2A2IA1
Feature → Business Impact → Application: The ETR-5000-2A2IA1 supports a wide power supply range (19-300 Vdc, 40-250 Vac) and 50/60 Hz operation, enabling global installation without multiple variants. This reduces spare part inventory while speeding commissioning in transformer protection schemes used in substations and OEM equipment. Application: transformer protection relays in global utility networks and industrial plants. Feature → Business Impact → Application: Eight digital inputs and nine digital outputs with removable terminals streamline field wiring and panel wiring, cutting installation time and error rates. Application: retrofit projects where quick, reliable wiring is essential for protection and signaling. Feature → Business Impact → Application: RS-485 Modbus RTU and Ethernet TCP communications provide open SCADA integration and remote monitoring, boosting uptime and enabling centralized fault analysis. Application: integration with modern automation architectures and remote control rooms. Feature → Business Impact → Application: Sensing inputs for Voltage Protection and Metering, Differential Protection, Current Protection and Metering, and Power Protection and Metering deliver precise protection coordination and accurate metering. Application: transformer protection, metering, and fault analytics. Feature → Business Impact → Application: Zone Selective Interlocking, 2-current-sensing inputs, and 8/9 I/O enable scalable protection logic with fast fault isolation. Application: large transformer banks and coordinated protection schemes. Feature → Business Impact → Application: Durable projection mounting and removable terminals reduce maintenance downtime and simplify serviceability. Application: fit-and-forget reliability in harsh industrial environments and compact control panels.
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FAQs
The ETR-5000-2A2IA1 is designed for straightforward retrofits with its removable terminals and projection mounting. It uses 8 digital inputs and 9 digital outputs wired to existing control circuitry, and supports a broad power range (19-300 Vdc, 40-250 Vac) with 50/60 Hz operation. Plan cable routing to minimize interference on RS-485 and Ethernet connections, and reference the Eaton datasheet for terminal mapping and safety clearances.
Leverage the RS-485 Modbus RTU port for legacy PLCs and the Ethernet TCP interface for modern SCADA integration. Ensure correct device addressing, confirm baud rate and parity settings, and enable time synchronization features such as IRIG-B where supported. Use the URTD interface options for ground reference and monitor Trip Coil status to improve fault response visibility.
Yes, the ETR-5000-2A2IA1 supports Voltage Protection and Metering, Differential Protection, Current Protection and Metering, and Power Protection and Metering, along with Zone Selective Interlocking. It provides 5A/1A phase current handling and 50/60 Hz operation, which supports precise protection coordination, fast fault isolation, and improved system reliability in substations and industrial transformer rooms.
Compliance information is provided by Eaton; the data sheet notes 'Compliances: Contact Manufacturer.' Before deployment, verify CE, UL, IP ratings, and any industry-specific certifications with Eaton or your authorized distributor. Consult the Eaton Specification Sheet ETR-5000-2A2IA1 for the latest certifications and installation guidelines.
The ETR-5000-2A2IA1 delivers robust protection with removable terminals for quick field servicing and a base relay compatible with ETR-4000, reducing spares and training complexity. Its comprehensive metering, remote communication, and scalable I/O support can lower downtime costs, shorten maintenance windows, and improve protection coordination—delivering measurable ROI over transformer asset lifecycles.