Eaton ETR-4000-2A3LB0 Transformer Relay - Mbus TCP/DNP3
Part Number: ETR-4000-2A3LB0
Quick Summary
Eaton transformer relay ETR-4000 provides comprehensive transformer protection and monitoring for critical power distribution in industrial facilities. This solution addresses common pain points such as undetected faults, slow fault isolation, and limited remote visibility by delivering robust protection, metering, and communication capabilities. While the system emphasizes differential and current protection with metering, it also supports Mbus TCP or DNP3 TCP/UDP over LC duplex fiber Ethernet for secure, field-level integration. Certification status should be confirmed via Eaton datasheets for region-specific approvals; in practice, this device supports conformal coating and a compact, semi-flush mounting footprint that simplifies installation in dense panel environments. The combination of 8 DI, 9 DO, and flexible power supplies enhances reliability and reduces total cost of ownership for transformer protection strategies.
Product Information
Extended Description
ETR-4000-2A3LB0 Eaton: Eaton, transformer relay, ETR-4000, Transformer protection relay, Mbus TCP or DNP3 TCP/UDP over LC duplex FO Enet, 5A, 1A, 40-250 Vac, 19-300 Vdc, 8, 9,Transformer, 19-300Vdc, 40-250Vac, 50/60 Hz , Trip Coil MonitorSensitive Ground Input
Product Name
Eaton transformer relay
Catalog Number
ETR-4000-2A3LB0
UPC
786679155257
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
Mbus TCP or DNP3 TCP/UDP over LC duplex FO Enet
Current sensing inputs
2
Digital inputs
8
Digital outputs
9
I/O options
Trip Coil Monitor IRIG-B URTD Interface Sensitive Ground Input
Modbus / DNP3 TCP
over LC duplex fiber optic Ethernet
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
Semi-flush
Voltage sensing inputs
0
Terminals
Removable
Power metering, monitoring and diagnostics products for OEMs
Power metering, monitoring and diagnostics products for OEMs
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-4000-2A3LB0
Feature → Business Impact → Application: The ETR-4000-2A3LB0 offers differential protection and current protection with metering, enabling rapid fault detection and accurate power quality insights, which translates to reduced outage times and improved asset health in substations and industrial plants. The 8 digital inputs and 9 digital outputs provide flexible I/O for remote sensed alarms, trip signals, and system interlocks, enhancing control reliability in transformer protection schemes. With a power supply range of 19-300 VDC or 40-250 VAC and 50/60 Hz operation, it accommodates diverse field voltages, simplifying retrofits and new installations alike. Mbus TCP or DNP3 TCP/UDP over LC duplex fiber enables secure, high-speed communication and remote diagnostics, supporting zone selective interlocking and fleet-wide monitoring. Conformal coating and removable terminals streamline harsh-environment deployments and maintenance, reducing downtime and installation costs. The I/O options (Trip Coil Monitor, IRIG-B, URTD Interface, Sensitive Ground Input) expand integration with protection schemes, improving fault isolation and accuracy. The device’s rugged form factor and 19-300 VDC/40-250 VAC compatibility help minimize wiring errors and accelerate commissioning, delivering measurable efficiency gains in plant operations.
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FAQs
Yes. The ETR-4000-2A3LB0 supports Mbus TCP or DNP3 TCP/UDP over LC duplex fiber optic Ethernet, enabling seamless integration with existing fiber networks and centralized protection schemes in transformer installations.
The relay accepts 19–300 VDC or 40–250 VAC supply and provides 8 digital inputs and 9 digital outputs, along with 2 current sensing inputs, suitable for diverse protection and metering configurations.
Yes. The ETR-4000 supports zone selective interlocking (2 zones) and combines differential protection, current protection, and metering to optimize fault isolation and system reliability in transformer protection applications.
Certification specifics (CE, SIL, IP, etc.) are not listed in the provided data. Please refer to Eaton’s official specification sheets or contact the manufacturer for region-specific approvals and compliance documentation before deployment.
With conformal coated circuit boards, removable terminals, and a robust 9 DO/8 DI configuration plus remote communication, the relay reduces field maintenance time, supports remote diagnostics, and lowers total cost of ownership by shortening downtime and speeding fault resolution.