Eaton motor relay EMR-4000-2A0IA1 - IRIG-B Interface
Part Number: EMR-4000-2A0IA1
Quick Summary
Eaton motor relay EMR-4000-2A0IA1 is a motor control relay that provides integrated protection, monitoring, and communications for industrial motors. Designed for automation environments, it helps simplify remote control and protection coordination across multiple drives and loads. In practice, engineers seek reliable protection, easy programming, and clear metering data to minimize downtime and optimize energy use. While deployment varies by era and system, this device aligns with common industry needs for modular I/O, digital signaling, and time-synchronized data. By combining motor protection, metering, and interoperable communication, it supports improved asset uptime, safer operation, and better operational visibility in your plant floor workflows.
Product Information
Extended Description
EMR-4000-2A0IA1 Eaton: Eaton, motor relay, 5A, 1A, Motor, over RS-485, over Ethernet RJ-45, 19-300Vdc, 40-250Vac, Current Protection and Metering,Voltage Protection and Metering,Power Protection and Metering, IRIG-B,URTD Interface
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A0IA1
UPC
786679147689
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
Modbus / DNP3 RTU
over RS-485
Modbus / DNP3 TCP
over Ethernet RJ-45
Sensing inputs
Current Protection and Metering Voltage Protection and Metering Power Protection and Metering
Zone selective interlocking
1
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Eaton Specification Sheet - EMR-4000-2A0IA1
Selling Policy 25-000 - Distribution and Control Products and Services
Feature → Business Impact → Application: 8 digital inputs enable robust start/stop sequencing and fault signaling, reducing operator error and enabling safer remote control for conveyors and fans in complex automation lines. This contributes to measurable downtime reductions and easier fault tracing during maintenance windows in packaging or process lines. Feature → Application: 5 digital outputs and 4 analog outputs provide flexible control and monitoring for motor starters, soft starters, and distributed control schemes, enabling precise speed and torque coordination across multi-motor applications. Business impact: improves process stability and energy management in pumping stations or material handling systems. Feature → Application: RS-485 Modbus / DNP3 RTU and Ethernet TCP/IP interfaces allow seamless integration with SCADA, MES, and remote I/O hubs, reducing wiring complexity and enabling centralized diagnostics. Benefit: faster commissioning, easier upgrades, and improved asset health visibility in power distribution and manufacturing floors. Feature → Application: URTD Interface with IRIG-B timing supports precise time synchronization for coordinated protection schemes, enabling accurate event logging and fault analysis in large-scale motor control networks. Benefit: enhances reliability for critical motors in batch processing and robotics lines. Feature → Application: Current Protection and Metering, Voltage Protection and Metering, Power Protection and Metering deliver real-time electrical data and protective actions, supporting energy accounting and fault prevention in energy-intensive plants. Outcome: informed maintenance planning and compliance-ready reporting. Feature → Application: Zone Selective Interlocking offers coordinated fault clearing to minimize arc-flash exposure and damage in shared bus configurations, improving safety and reducing repair costs after faults. Outcome: safer shutdowns and lower total cost of ownership in high-horsepower motor installations. This product is compatible with PowerPort-E for streamlined programming and diagnostics, and the 1-year warranty provides procurement peace of mind for panel builders and OEMs. Industry context: engineers frequently balance protection, data granularity, and remote monitoring; EMR-4000-2A0IA1 provides a consolidated solution that supports modern digital factories while reducing engineering overhead and installation risk.
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FAQs
EMR-4000-2A0IA1 is designed for straightforward integration with standard Eaton hardware and common networks. Connect the RS-485 Modbus RTU and Ethernet TCP/IP interfaces to your PLC or SCADA, and use the URTD IRIG-B timing option for time synchronization in multi-device deployments. Ensure you observe the 8 digital inputs, 5 digital outputs, and 4 analog outputs layout to wire the I/O exactly as your control scheme requires.
Key specs include 5A and 1A phase current protection available for motor protection and metering. It provides current, voltage, and power protection and metering across a 19-300VDC / 40-250VAC range, supporting safe and reliable operation of motor drives. The device also offers 8 digital inputs, 5 digital outputs, and 4 analog outputs to support rich control and monitoring functionality.
Yes, the EMR-4000-2A0IA1 includes Zone Selective Interlocking capability, which enables coordinated fault clearing in shared bus configurations. This reduces arc-flash exposure and equipment damage by enabling faster, more selective protection actions, making it suitable for complex motor banks and distribution schemes in manufacturing sites.
The product data shows 'Compliances: Contact Manufacturer,' so refer to the official Eaton datasheet for definitive certification details. In practice, motor relays used in industrial environments commonly address safety and environmental requirements; verify CE, UL, or IP-related certifications with your compliance team and Eaton documentation before deployment.
The device combines protection, metering, and remote communication in a single unit, reducing wiring, panels, and diagnostic effort. Real-time data and remote monitoring capabilities help predict maintenance needs, lowering unplanned downtime. While initial costs may be higher, the added uptime, energy insight, and simplified integration typically yield a favorable ROI over the system’s lifecycle.