Eaton EMR-4000-2A1KA0 Motor Relay - IEC 61850 Fiber Optic Ethernet
Part Number: EMR-4000-2A1KA0
Quick Summary
Eaton motor relay EMR-4000-2A1KA0 provides motor protection and control for industrial drives. Engineers often struggle to integrate protection, metering, and digital communications into a single, reliable unit. Note: Compliances and certifications should be confirmed with Eaton; this device supports IEC 61850 and Modbus/DNP3 over LC duplex fiber optic Ethernet, enabling robust integration in harsh industrial environments. Together, these features deliver improved uptime, energy insight, and scalable I/O for motor-driven applications in manufacturing and process plants. The rugged hardware supports broad voltage ranges, from 19-300 VDC to 40-250 VAC, and a comprehensive set of I/O enables both control and protection on a single platform.
Product Information
Extended Description
EMR-4000-2A1KA0 Eaton: Eaton, motor relay, 5A, 1A, Motor, over LC duplex fiber optic Ethernet, 19-300Vdc, 40-250Vac, Power Protection and Metering,Voltage Protection and Metering,Current Protection and Metering
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A1KA0
UPC
786679146897
Product Length/Depth
8.06 in
Product Height
8.7 in
Product Width
9.72 in
Product Weight
9.259 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
Motor
Type
Motor relay
Analog inputs
0
Phase current
5A, 1A
Analog outputs
4
Digital inputs
8
Digital outputs
5
I/O options
Sensitive Ground Input IRIG-B URTD Interface
IEC 61850
over LC duplex fiber optic Ethernet
Modbus / DNP3 TCP
over LC duplex fiber optic Ethernet
Sensing inputs
Current Protection and Metering Voltage Protection and Metering Power Protection and Metering
Zone selective interlocking
1
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 - EMR-4000-2A1KA0
Feature: Integrated IEC 61850 and Modbus/DNP3 over LC duplex fiber optic Ethernet. Benefit: EMI immunity and reliable communications across equipment, reducing wiring and panel complexity. Application: Motor drive panels and substations where digital integration is critical for performance and monitoring. Feature: Flexible I/O set with 8 digital inputs, 5 digital outputs, 4 analog outputs (0 analog inputs). Benefit: Rich control and protection logic on a single device, enabling compact control schemes and simplified wiring. Application: Machine automation points requiring multi-channel signaling and status reporting. Feature: Sensing inputs for current protection and metering, voltage protection and metering, and power protection and metering. Benefit: Real-time protection and precise energy accounting to optimize energy use and prevent faults. Application: Power protection in motors and drives across manufacturing lines. Feature: Zone selective interlocking support (1). Benefit: Faster, selective tripping reduces downtime and arc quenching requirements. Application: Switchgear coordination in motor starter assemblies and drive rooms. Feature: IRIG-B URTD interface and Sensitive Ground Input options. Benefit: Precise time synchronization and robust grounding for mission-critical control. Application: Complex automation networks and data logging scenarios in process facilities. Feature: Delivery program: Motor, Type: Motor relay. Benefit: Seamless fit within Eaton’s E-Series motor control ecosystem, facilitating installation and serviceability. Application: Retrofit projects and new motor control panels where standardization matters.
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FAQs
EMR-4000-2A1KA0 is designed to integrate with Eaton E-Series motor control architectures. Start with mounting in the panel, connect 19–300 VDC or 40–250 VAC power, wire the 8 digital inputs, 5 digital outputs, and 4 analog outputs, and then configure IEC 61850 or Modbus/DNP3 communication over the LC duplex fiber. Refer to the Eaton specification sheet for wiring diagrams and front-panel navigation steps.
Key specs include phase current options of 5A and 1A, digital I/O total of 8 inputs, 5 outputs, and 4 analog outputs, with no analog inputs. Operating voltage ranges span 19–300 VDC and 40–250 VAC. Communications are via IEC 61850 and Modbus/DNP3 over LC duplex fiber, with zone selective interlocking available and a one-year warranty or 18 months from shipment.
Yes. EMR-4000-2A1KA0 supports IEC 61850 over LC duplex fiber optic Ethernet, as well as Modbus/DNP3 TCP over fiber, enabling reliable, EMI-immune communication in industrial networks. This makes it well-suited for modern substation-style motor control and drive integration where fast, secure data exchange is required.
Compliances are listed as Contact Manufacturer, meaning specific certifications such as CE, SIL, or IP ratings should be confirmed directly with Eaton. The device’s documentation emphasizes IEC 61850 and Modbus/DNP3 communications over fiber, along with time-sync and grounding options, as part of its integration capabilities.
The integrated protection, metering, and digital communications reduce wiring complexity, streamline panel design, and enable remote diagnostics. With a built-in metering suite and time-sync options, you gain better energy visibility, faster fault isolation, and improved uptime, translating to lower maintenance costs and higher plant throughput.