Eaton ETR-4000-2A0CB1 Transformer Relay - 50/60 Hz
Part Number: ETR-4000-2A0CB1
Quick Summary
The Eaton transformer relay protects transformers in industrial power systems. Engineers often struggle with coordinating protection schemes across fluctuating voltages and remote sites, and this device simplifies that with integrated monitoring and Ethernet connectivity. Compliance details are manufacturer-provided; check for CE, SIL, and IP ratings with Eaton for your installation. With eight digital inputs, nine digital outputs, a wide power range, and Modbus TCP or DNP3 communications over Ethernet RJ45, the ETR-4000-2A0CB1 enables fast protection and seamless integration, helping reduce downtime and maintenance costs in demanding transformer protection applications.
Product Information
Extended Description
ETR-4000-2A0CB1 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay,5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9, Removable, Transformer, , over Ethernet RJ-45,19-300Vdc, 40-250Vac, 50/60 Hz, Projection, Trip Coil Monitor,
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A0CB1
UPC
786679154700
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
IRIG-B Trip Coil Monitor URTD Interface
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
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-4000-2A0CB1
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: Wide power supply range and rugged inputs support installation from 19–300 Vdc or 40–250 Vac, eliminating extra conditioning and enabling deployment across mixed-power plants and substations. This reduces wiring complexity and accelerates commissioning for transformer protection projects. Feature → Business Impact → Application: Eight digital inputs and nine digital outputs with removable terminals and projection mounting provide scalable protection logic and easier field wiring, speeding retrofits and minimizes commissioning time in brownfield installations. Feature → Business Impact → Application: Modbus TCP or DNP3 TCP/UDP over Ethernet RJ45 enables seamless SCADA integration, remote monitoring, and coordinated protection across multiple devices, improving fault isolation and downtime metrics. Feature → Business Impact → Application: Differential protection, current protection, metering, Trip Coil Monitor, IRIG-B and URTD I/O offer precise, time-aligned protection and advanced interlocking, meeting stringent reliability KPIs in high-demand environments. Feature → Business Impact → Application: Conformal coating and a compact, removable-terminal design increase reliability in harsh industrial settings and simplify maintenance, reducing lifecycle costs and extending asset life.
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FAQs
Install with the 8 digital inputs and 9 digital outputs wired to the protection scheme; use the removable terminals for quick field wiring and take advantage of projection mounting for a secure fit. Power the unit from 19-300 Vdc or 40-250 Vac and connect Modbus TCP or DNP3 over Ethernet RJ45 for SCADA integration.
It provides differential protection, current protection, and metering with 2 current sensing inputs and zone selective interlocking (2). It also supports Trip Coil Monitoring and timing via IRIG-B interfaces for synchronized protection in multi-device architectures.
Yes. With a broad power-supply range, extensive I/O, Ethernet-based communications, and protection functions tailored to transformers, the ETR-4000-2A0CB1 is well suited for substations and large-scale industrial transformers, delivering reliable protection and remote visibility.
Compliance details are provided by the manufacturer; consult Eaton for CE, SIL, IP ratings, and any site-specific certification requirements to ensure your installation meets all regulatory and safety standards.
Warranty is one year from installation or 18 months from shipment, whichever comes first. Eaton’s selling policy outlines support and replacement terms; for ongoing protection, leverage available manuals, datasheets, and the provided digital assets for maintenance and firmware updates.