Eaton ETR-4000-2A0CA1 Transformer Relay - 50/60 Hz
Part Number: ETR-4000-2A0CA1
Quick Summary
The Eaton transformer relay protects transformers and switchgear in utility and industrial applications. Engineers often battle nuisance trips and slow fault diagnosis that drive downtime and maintenance costs. It supports Modbus TCP or DNP3 TCP/UDP over Ethernet and operates on 50/60 Hz with a wide power range (19-300 Vdc and 40-250 Vac). Compliance details are provided by the manufacturer, so verify CE, SIL, and IP ratings with Eaton to meet your project requirements. Its 8 digital inputs, 9 digital outputs, and 2 current sensing inputs enable sophisticated protection schemes, while remote monitoring and diagnostics reduce on-site visits. This combination delivers reliability, faster maintenance decisions, and lower lifecycle costs for transformer protection deployments.
Product Information
Extended Description
ETR-4000-2A0CA1 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, Projection,Trip Coil Monitor
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A0CA1
UPC
786679154687
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 TCP or DNP3 TCP/UDP over Ethernet RJ45
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
URTD Interface IRIG-B Trip Coil Monitor
Modbus / DNP3 RTU
over Ethernet RJ-45
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
Power metering, monitoring and diagnostics products for OEMs
Power metering, monitoring and diagnostics products for OEMs
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-4000-2A0CA1
Feature → Business Impact → Application: 8 digital inputs and 9 digital outputs enable complex protection logic and flexible control sequencing, improving protection accuracy and reducing false trips in transformer banks used in substations or industrial plants. This translates to lower downtime, easier configuration, and scalable protection schemes for OEM equipment. Feature → Business Impact → Application: 2 current sensing inputs support differential and metering functions, delivering precise fault detection and energy accounting, which is essential for grid stability projects and large-scale power distribution. Feature → Business Impact → Application: Wide power supply range of 19-300 Vdc and 40-250 Vac allows installation from diverse supply environments, simplifying retrofits and multi-site deployments without additional power conditioning. Feature → Business Impact → Application: Ethernet-based communication via Modbus TCP or DNP3 enables seamless integration with SCADA, EMS, and MMS systems, reducing field diagnostics time and enabling remote monitoring across multiple facilities. Feature → Business Impact → Application: URTD interface, IRIG-B Trip Coil Monitor, and 8 inputs/9 outputs support advanced protection schemes and precise trip coordination for critical transformer applications in utility substations and OEM equipment. Feature → Business Impact → Application: Removable terminals and projection mounting simplify installation, maintenance, and field upgrades, lowering labor time and risk during panel wiring and retrofits. Feature → Business Impact → Application: The device’s protection-focused design, including differential and current protection capabilities, enhances reliability metrics and aligns with industry best practices for transformer protection in medium- to large-scale installations.
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FAQs
The ETR-4000-2A0CA1 is designed for transformer protection in substations and OEM equipment, supporting Modbus TCP or DNP3 over Ethernet for integration with SCADA and protection schemes.
Power supply range is 19-300 Vdc or 40-250 Vac, operating at 50/60 Hz. It features 8 digital inputs, 9 digital outputs, and 2 current sensing inputs for differential protection and metering.
Yes. It offers Modbus TCP or DNP3 TCP/UDP over Ethernet RJ45 for real-time monitoring, control, and integration with SCADA systems.
Compliance specifics are provided by the manufacturer; verify CE, SIL, and IP ratings directly with Eaton to meet project requirements for your region and application.
The unit uses removable terminals and projection mounting for easier installation. Warranty is one year from installation or 18 months from shipment, whichever comes first.