Eaton EMR-4000-2A0KA0 Motor Relay - LC Duplex Fiber Ethernet
Part Number: EMR-4000-2A0KA0
Quick Summary
The Eaton motor relay EMR-4000-2A0KA0 enables reliable motor control in industrial automation applications. Many users struggle with integrating protection, metering, and precise communications across disparate devices. It supports IEC 61850 over LC duplex fiber Ethernet, IRIG-B time synchronization, and URTD interface, delivering robust interoperability in substations and control cabinets. The unit’s sensing inputs, current/voltage protection and multiple IO options streamline protection and metering in one enclosure. With 8 digital inputs, 5 digital outputs, and 4 analog outputs, it reduces wiring, speeds commissioning, and improves uptime while meeting demanding service and compliance expectations. This integration-friendly solution also supports Zone Selective Interlocking for selective feeder protection.
Product Information
Extended Description
EMR-4000-2A0KA0 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, IRIG-B,URTD Interface
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A0KA0
UPC
786679147726
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
URTD Interface IRIG-B
IEC 61850
over LC duplex fiber optic Ethernet
Modbus / DNP3 TCP
over LC duplex fiber optic Ethernet
Sensing inputs
Power Protection and Metering Voltage Protection and Metering Current Protection and Metering
Zone selective interlocking
1
Introduction to Eaton's E-Series Relay, Step 1: Physical Connections
Introduction to Eaton's E-Series Relay, Step 1: Physical Connections
Introduction to Eaton's E-Series Relay, Step 1: Physical Connections
Introduction to Eaton's E-Series Relay, Step 1: Physical Connections
Introduction to Eaton's E-Series Relay, Step 1: Physical Connections
Introduction to Eaton's E-Series Relay, Step 1: Physical Connections
Eaton Specification Sheet - EMR-4000-2A0KA0
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Integrated IO and protection functions. Business Impact: Reduces panel space, wiring complexity, and installation cost. Application: Motor control panels and substations, enabling compact, reliable protection and control in a single enclosure. Feature: IEC 61850 over LC duplex fiber Ethernet. Business Impact: Improves interoperability and data exchange across devices and systems, speeding fault isolation and diagnostics. Application: Industrial automation networks and utility substations where standard-compliant, high-speed communications matter. Feature: IRIG-B time synchronization and URTD interface. Business Impact: Delivers precise time stamping and seamless remote interface integration, supporting coordinated protection schemes. Application: Time-critical control and metering in distributed systems. Feature: Sensing inputs and metering capabilities (Power Protection and Metering, Voltage and Current protection). Business Impact: Consolidates protection, metering, and analytics, enabling accurate energy accounting and safer operation. Application: Plant-wide energy management and protective relays in power circuits. Feature: Zone Selective Interlocking (ZSI). Business Impact: Reduces system-wide outages by enabling selective tripping, improving availability. Application: Feeder protection in complex electrical distribution networks.
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FAQs
Yes, the EMR-4000-2A0KA0 is designed for integration in modern control cabinets and can replace older relays when wiring and IO requirements align. It offers 8 digital inputs, 5 digital outputs, and 4 analog outputs, alongside URTD and IRIG-B interfaces for seamless migration. Ensure compatible supply voltage (19–300 Vdc / 40–250 Vac) and verify existing bus and communication topology to minimize rework and downtime.
Key ratings include 5 A and 1 A for phase current, 19–300 Vdc and 40–250 Vac operating ranges, with 8 digital inputs, 5 digital outputs, and 4 analog outputs. It also provides URTD Interface, IRIG-B time synchronization, and IEC 61850 communications over LC duplex fiber, supporting reliable protection and metering in industrial environments.
The EMR-4000-2A0KA0 is well-suited for both. Its IEC 61850 communication over fiber and IRIG-B timing, plus Zone Selective Interlocking, make it ideal for feeder protection in substations as well as complex machine control panels requiring integrated protection, metering, and precise timing.
Key standards and interfaces include IEC 61850 communications over LC duplex fiber, IRIG-B timing, and URTD interface. While the data does not specify CE or SIL ratings, the device is designed to align with modern industrial and utility networking practices, enabling interoperable protection and metering within compliant control architectures.
By consolidating protection, metering, and control IO in a single unit, the EMR-4000-2A0KA0 reduces wiring complexity and panel footprint, shortening commissioning times and lowering maintenance overhead. The integration of metering and protection supports data-driven optimization of energy use and fault response, improving uptime and reducing total cost of ownership.