Eaton EMR-4000-2A1LB0 Motor Relay - LC Duplex Fiber Ethernet
Part Number: EMR-4000-2A1LB0
Quick Summary
Eaton EMR-4000-2A1LB0 motor relay protects and coordinates industrial motors in automated lines. Panel designers often struggle with wiring complexity and late protection feedback, which this unit reduces through rich I/O and integrated metering. Certification considerations typically include CE marking and IP-rated protection, with SIL safety integration depending on system design. By combining motor protection, sensing, and fiber communications in one enclosure, EMR-4000-2A1LB0 lowers wiring costs and simplifies maintenance for plant-wide motor control.
Product Information
Extended Description
EMR-4000-2A1LB0 Eaton: Eaton, motor relay, 5A, 1A, Motor, over LC duplex fiber optic Ethernet, Conformal Coated Circuit Boards, 19-300Vdc, 40-250Vac,Current Protection and Metering,Power Protection and Metering, Sensitive Ground Input,
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A1LB0
UPC
786679147443
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
Modbus / DNP3 TCP
over LC duplex fiber optic Ethernet
Sensing inputs
Voltage Protection and Metering Power Protection and Metering Current Protection and Metering
Zone selective interlocking
1
Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard
Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard
Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard
Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard
Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard
Programming an Eaton E-Series Relay, Step 3: Getting Started with the E-Series Wizard
Eaton Specification Sheet - EMR-4000-2A1LB0
Feature: Rich I/O with 8 digital inputs, 5 digital outputs, and 4 analog outputs. Business Impact: Enables centralized motor control and precise monitoring without extensive external controllers, reducing panel complexity. Application: Motor control panels in conveyors and pumps benefit from faster commissioning and easier troubleshooting. Feature: Wide voltage compatibility of 19-300 Vdc and 40-250 Vac. Business Impact: Supports diverse motor loads and eliminates the need for multiple interface devices, cutting inventory and integration time. Application: Mixed-volt industrial environments, OEM machinery, and retrofit projects gain streamlined installation. Feature: Fiber optic Modbus/DNP3 TCP communications over LC duplex Ethernet. Business Impact: Facilitates reliable, long-distance SCADA integration and remote diagnostics, lowering cabling costs and downtime. Application: Factory-wide motor control networks and remote monitoring setups. Feature: Sensing inputs and protection with Voltage, Current, and Power metering. Business Impact: Improves fault detection and energy visibility, enabling proactive maintenance and energy management programs. Application: Energy-intensive motor systems and protected loads. Feature: I/O options including Sensitive Ground Input, IRIG-B timing, and URTD Interface plus Zone Selective Interlocking. Business Impact: Enhances safety, timing accuracy, and fault isolation, reducing risk and outage impact. Application: Critical drives in packaging lines, water treatment, and process equipment. Feature: Conformal coated circuit boards and rugged construction. Business Impact: Increases reliability in harsh environments, reducing field failures and service costs. Application: Industrial plants with dust, humidity, and temperature variation.
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FAQs
EMR-4000-2A1LB0 provides Modbus and DNP3 TCP communications over LC duplex fiber optic Ethernet, enabling straightforward SCADA integration. With eight digital inputs, five digital outputs, and four analog outputs, the relay can centralize motor control logic and status reporting, reducing external gateway devices and wiring complexity while supporting common PLCs and automation architectures.
Key specifications include operating voltage from 19 to 300 V DC and 40 to 250 V AC, with defined phase currents of 5 A and 1 A. The device features eight digital inputs, five digital outputs, four analog outputs, and integrated sensing for voltage, current, and power protection and metering, suitable for diverse motor control applications.
Yes, the unit employs conformal coated circuit boards and supports fiber optic communication, which enhances reliability in dusty, humid, or electrically noisy environments. I/O options such as Sensitive Ground Input and timing references (IRIG-B) help maintain protection accuracy and synchronization under demanding conditions.
Plan for mounting within a motor control panel that can accommodate an 8.7 in high, 9.72 in wide, and 8.06 in deep footprint. Leverage the fiber-based Modbus/DNP3 link for remote monitoring and ensure compatible power and motor wiring. Confirm the site’s compliance requirements with the manufacturer and align with I/O needs such as URTD and IRIG-B interfaces.
ROI is driven by reduced wiring and external controllers, centralized protection with metering data for energy management, and faster fault isolation via zone selective interlocking. The integrated analog/digital I/O and robust communication capabilities lower maintenance costs and downtime, while improving overall equipment effectiveness (OEE) in motor-driven processes.