Eaton ETR-5000-2B3CB0 Transformer Relay - Modbus TCP

Part Number: ETR-5000-2B3CB0
ETR-5000-2B3CB0
Manufacturer
Eaton
Part number
ETR-5000-2B3CB0
Category

Quick Summary

Eaton transformer relay is a protective control device that guards transformer networks from fault conditions. Engineers often struggle to coordinate protection logic, remote monitoring, and communications across multiple I/O and industrial networks. In demanding environments, reliable compliance considerations matter; look for CE marking and enclosure ratings, with SIL and IP considerations to confirm with Eaton. This transformer relay also delivers Modbus TCP communication for easy integration, plus robust protection logic that reduces fault exposure and operation costs. For project teams pursuing reliability and faster commissioning, the Eaton ETR-5000-2B3CB0 combines clear diagnostics with scalable I/O. By consolidating protection, metering, and communication into a single unit, maintenance cycles shorten and mean time to repair improves.

Product Information

Extended Description

ETR-5000-2B3CB0 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 Trip Coil Monitor,Sensitive Ground Input
Product Name
Eaton transformer relay
Catalog Number
ETR-5000-2B3CB0
UPC
786679156193
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
2
Analog outputs
2
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 URTD Interface IRIG-B Sensitive Ground Input
Modbus / DNP3 RTU
over Ethernet RJ-45
Phase current
5A, 1A
Sensing inputs
Voltage Protection and Metering Differential Protection Power Protection and Metering 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
1
Terminals
Removable
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The Modbus TCP over Ethernet RJ-45 interface enables seamless integration into existing control networks, reducing wiring complexity and speeding commissioning. This translates to faster site startup, easier remote diagnostics, and lower on-site labor costs, especially in substations and large industrial plants where uptime is critical. The device provides eight digital inputs, nine digital outputs, and two analog inputs plus two analog outputs, delivering flexible protection schemes and scalable interlocking options that support zone-selective interlocking and differential protection with minimal hardware additions. With a power supply range of 19-300 VDC and 40-250 VAC, plus a 50/60 Hz frequency rating, the relay thrives in mixed electrical environments and supports renewable integration without bespoke power rails. I/O options such as Trip Coil Monitor, URTD Interface, IRIG‑B, and Sensitive Ground Input enable precise trip logic, event recording, and time synchronization across networks, reducing miscoordination and improving safety. Removable terminals and semi-flush mounting simplify field wiring, testing, and routine maintenance, cutting installation time and enabling faster serviceability. Conformal coating protects circuit boards in harsh environments, increasing mean time between maintenance and safeguarding long-term performance. Compatibility with Eaton’s ETR-4000 base relay ensures upgrade paths are straightforward, preserving system investments while expanding protection coverage.

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FAQs

Installers should plan semi-flush mounting and use removable terminals to simplify wiring access. With 8 digital inputs, 9 outputs, and 2 analog channels, route signals carefully to support protection logic and metering without cross-talk. Verify proper power supply within 19-300 Vdc or 40-250 Vac, proper Ethernet connection for Modbus TCP or DNP3, and confirm torque specs for field terminations to ensure long-term reliability.
The ETR-5000-2B3CB0 exposes Modbus TCP or DNP3 TCP/UDP communications over Ethernet RJ45, enabling remote monitoring and control from MES or SCADA. Configure user registers for status, faults, and metering, and map I/O events to alarm tiers. This reduces site visits, accelerates fault isolation, and supports scalable data collection across multiple devices in a protection scheme.
Yes. It is designed as a transformer protection relay with features like multiple I/O, alarm and trip coordination, and Ethernet-based comms suitable for substations and large industrial facilities. Its flexible I/O (8 DI, 9 DO, 2 AI, 2 AO) supports complex protection schemes, interlocking, and remote diagnostics, making it well-suited for installations demanding high reliability and networked monitoring.
The data shows Compliance as Contact Manufacturer, so verify with Eaton for CE labeling, IP enclosure ratings, and any SIL safety qualifications relevant to your application. Depending on installation location and risk category, confirm environmental ratings and safety certifications before field deployment to ensure regulatory alignment and insurer acceptance.
Consolidating protection, metering, and communications into a single unit reduces hardware footprint and simplifies maintenance. Remote diagnostics and Ethernet-based access shorten mean time to repair, while scalable I/O supports future expansion without new relays. The result is lower total cost of ownership through reduced labor, faster commissioning, and improved uptime in transformer protection applications.