Eaton Motor Relay EMR-4000-2A1LA1 - IRIG-B Fiber Ethernet
Part Number: EMR-4000-2A1LA1
Quick Summary
Eaton motor relay EMR-4000-2A1LA1 controls and protects motors in industrial automation applications. This model reduces nuisance trips and miscoordination in complex motor start-stop sequences across multi-motor lines. Certification details should be verified with the manufacturer, with emphasis on CE marking and IP protection; confirm SIL where required. The solution integrates 19–300 Vdc and 40–250 Vac operation, IRIG-B sensing, and a fiber‑optic Modbus/DNP3 TCP link for dependable field connectivity. With URTD interface, 8 digital inputs, 5 digital outputs, 4 analog outputs, and 0 analog inputs, the unit offers scalable control for motor protection and metering. Warranty follows Eaton policy: one year from installation or 18 months from shipment. This combination supports high availability motor control in facilities requiring rugged, time-synced protection and precise metering. Designed for ease of integration with Eaton E-Series hardware and field networks.
Product Information
Extended Description
EMR-4000-2A1LA1 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, Sensitive Ground Input
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A1LA1
UPC
786679147436
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 Sensitive Ground Input IRIG-B
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
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-4000-2A1LA1
Wide voltage and current range enables single-sourced protection for mixed motor loads. The EMR-4000-2A1LA1 supports 5A and 1A phase currents and operates from 19–300 Vdc or 40–250 Vac, allowing seamless use with variable-speed drives and legacy motors. This translates to fewer part substitutions and easier stocking for regional maintenance teams. With eight digital inputs, five digital outputs, and four analog outputs, the unit integrates directly with PLCs and HMIs, reducing panel wiring and wiring errors. The URTD interface and sensitive ground input provide enhanced fault detection and time-critical safety, while IRIG-B time sync ensures synchronized operations across distributed protection schemes. Modbus/DNP3 TCP over LC duplex fiber ensures reliable, low-latency fieldbus connectivity in harsh environments; the protective sensing covers Power, Voltage, and Current Protection and Metering, supporting energy management and fault analytics. Zone-selective interlocking (ZSI) helps achieve selective motor tripping, reducing arc flash risk and downtime during faults, which improves plant safety and availability. The compact footprint simplifies panel design, while the Eaton warranty and documented service policy reduce lifecycle risk. In automation projects spanning packaging, water treatment, and process industries, motor relays like EMR-4000-2A1LA1 support asset management through metering, time stamping, and robust fiber connectivity.
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FAQs
Plan for integration with existing PLCs and drive systems. The unit offers eight digital inputs, five digital outputs, and four analog outputs, which reduces external wiring. Ensure fiber optic links are properly terminated for Modbus/DNP3 TCP over LC duplex and observe proper URTD interface connections for sensitive ground input and IRIG-B synchronization.
EMR-4000-2A1LA1 communicates over a fiber optic LC duplex link using Modbus and DNP3 TCP, enabling robust, low-latency fieldbus connectivity in harsh industrial environments. This supports centralized monitoring, metering data collection, and coordinated protection across distributed motor networks.
Yes. The unit supports Zone Selective Interlocking (ZSI) with one interlock zone, which helps achieve selective tripping and reduces the impact of faults on unrelated circuits. This improves safety and uptime in facilities with multiple motors sharing protection zones.
Compliances are provided by the manufacturer; confirm CE marking, IP ratings, and any SIL or safety certifications required for your region and application. Always request the latest Eaton datasheet and verification documents to ensure regulatory alignment for your installation.
The relay offers integrated metering and protection, reducing downtime and simplifying maintenance with fewer external components. Its fiber connectivity and precise time synchronization improve diagnostic reliability, while the warranty policy (one year from installation or 18 months from shipment) lowers lifecycle risk and replacement costs.