Eaton ETR-4000-2A3CB1 Transformer Relay - 50/60 Hz
Part Number: ETR-4000-2A3CB1
Quick Summary
The Eaton transformer relay ETR-4000-2A3CB1 provides transformer protection for power distribution and OEM equipment. It addresses the challenge of coordinating protection logic with remote monitoring in modern automation environments. Compliance and documentation are provided through Eaton's datasheets and support channels, with region-specific approvals available on request. This model emphasizes versatility through Ethernet-based communications and flexible I/O, helping engineers reduce panel complexity while maintaining robust protection and diagnostics for critical transformer assets.
Product Information
Extended Description
ETR-4000-2A3CB1 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,Sensitive Ground Input
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A3CB1
UPC
786679154502
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
Trip Coil Monitor Sensitive Ground Input URTD Interface IRIG-B
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
Projection
Voltage sensing inputs
0
Terminals
Removable
Power metering, monitoring and diagnostics products for OEMs
Power metering, monitoring and diagnostics products for OEMs
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Eaton Specification Sheet - ETR-4000-2A3CB1
Feature → Business Impact → Application: Flexible power supply range and scalable I/O simplify retrofits and new installs, reducing wiring and cabinet space while supporting 19-300 Vdc and 40-250 Vac inputs. This enables quicker commissioning and lower installation costs in substations and industrial plants. Application: transformer protection in retrofit projects and new Greenfield builds. Feature → Business Impact → Application: Ethernet communication via Modbus TCP or DNP3 TCP/UDP over RJ45 enables remote diagnostics and SCADA integration, cutting maintenance trips and accelerating fault isolation. Application: OEMs and end users needing centralized monitoring across distributed transformer banks. Feature → Business Impact → Application: 8 digital inputs, 9 digital outputs, and 2 current sensing inputs support precise protection coordination and metering, improving fault visibility and selectivity. Application: local protection logic with feed-forward alarms in control rooms. Feature → Business Impact → Application: Trip Coil Monitor, Sensitive Ground Input, IRIG-B and URTD interface enhance reliability and time synchronization, reducing false trips and enabling accurate event logging. Application: high-integrity protection schemes in critical feeders. Feature → Business Impact → Application: Conformal coated circuit boards and removable terminals simplify harsh-environment installations and field maintenance. Application: outdoor or damp environments where reliability is paramount.
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FAQs
The ETR-4000-2A3CB1 supports projection mounting with removable terminals, simplifying retrofits in existing switchgear. Installers should verify power supply within 19-300 Vdc or 40-250 Vac, ensure proper wiring of 8 digital inputs and 9 digital outputs, and connect via Ethernet RJ-45 for Modbus TCP or DNP3. Proper sealing and conformal coating (as specified) improve reliability in harsh environments.
Key specs include 8 digital inputs, 9 digital outputs, 2 current sensing inputs for phase currents up to 5 A and 1 A, a power supply range of 19-300 Vdc or 40-250 Vac, and a 50/60 Hz frequency rating. It supports Modbus TCP or DNP3 TCP/UDP over Ethernet, enabling integrated protections, metering, and remote diagnostics.
Yes. This transformer relay includes Modbus TCP or DNP3 TCP/UDP over Ethernet RJ45, enabling seamless integration with SCADA systems and remote diagnostics. The combination of 8 DI, 9 DO, and current sensing inputs allows coordinated protection logic and efficient data sharing across distributed transformers in plants and substations.
Compliance details are provided by the manufacturer; current product documentation and warranties follow Eaton policies. The model lists a one-year warranty with Eaton's standard terms and a comprehensive product datasheet. For region-specific approvals (CE, UL, IP ratings), consult Eaton’s documentation or contact their support team to confirm the exact certifications for your installation.
The ETR-4000-2A3CB1 delivers faster fault isolation through enhanced protection logic, richer diagnostic data over Ethernet, and remote monitoring reducing field trips. Its robust I/O, conformal coating, and removable terminals simplify maintenance and retrofits, translating to lower downtime, fewer manual interventions, and improved transformer uptime in manufacturing lines and critical utility feeders.