Eaton EMR-4000-2A0EA0 Motor Relay - PROFIBUS-DP
Part Number: EMR-4000-2A0EA0
Quick Summary
Eaton motor relay is a compact control device that monitors and protects industrial motors in factory automation. Engineers often struggle to integrate protection, monitoring, and fieldbus communication in motor control panels. Compliances are listed as 'Contact Manufacturer' for certification details; verify SIL, CE, and IP ratings with Eaton to meet your compliance requirements. In practice, its RS-485 and PROFIBUS-DP interfaces enable seamless fieldbus integration, while 8DI, 5DO, and 4AO support comprehensive motor protection and metering—reducing wiring and downtime. This translates to shorter project timelines and lower total cost of ownership for industrial automation applications. Together, these features streamline commissioning and ongoing diagnostics for engineers and procurement teams.
Product Information
Extended Description
EMR-4000-2A0EA0 Eaton: Eaton, EMR-4000-2, current and voltage motor relay, 8I, 5O, 4AO, ZSI, IRIG-B, 5/1A PH and GND, Profibus-DP over D-SUB / RS485, No conf. coat, Semi-flush mount
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A0EA0
UPC
786679147511
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
IRIG-B URTD Interface
PROFIBUS-DP
over D-Sub / RS-485
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 5: Monitoring with PowerPort-E
Interfacing with an Eaton E-Series Relay, Step 5: Monitoring with PowerPort-E
Interfacing with an Eaton E-Series Relay, Step 5: Monitoring with PowerPort-E
Interfacing with an Eaton E-Series Relay, Step 5: Monitoring with PowerPort-E
Interfacing with an Eaton E-Series Relay, Step 5: Monitoring with PowerPort-E
Interfacing with an Eaton E-Series Relay, Step 5: Monitoring with PowerPort-E
Eaton Specification Sheet - EMR-4000-2A0EA0
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Comprehensive I/O and fieldbus integration. Benefit: Reduces panel wiring complexity and speeds commissioning, enabling rapid deployment of motor protection and monitoring in automation environments. Application: Suitable for machine builders and panel shops seeking clean, scalable control architectures. Feature: Sensing inputs for Current, Voltage, and Power protection and metering. Benefit: Improves fault detection and energy management, cutting unplanned outages and supporting energy efficiency initiatives. Application: Ideal for process lines and continuous-duty motors in manufacturing plants. Feature: I/O options including IRIG-B and Zone Selective Interlocking (ZSI). Benefit: Delivers precise time synchronization and selective tripping, enhancing safety and coordination on multi-motor drives. Application: Critical in heavy industry and MCCs where precise interlocks matter. Feature: Robust fieldbus support with PROFIBUS-DP over D-Sub / RS-485. Benefit: Eases integration into existing networks and reduces integration risk, lowering installation costs and project time. Application: Fits legacy and modern automation networks alike in OEMs and system integrators. Feature: Mechanical and warranty details for reliability. Benefit: Semi-flush mount design and a one-year warranty (or 18 months from shipment) provide dependable operation and predictable maintenance planning. Application: Useful for reliable motor control in harsh industrial environments where downtime matters.
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FAQs
Recommended installation starts with selecting a suitable panel location for semi-flush mounting, then wiring 8 digital inputs, 5 digital outputs, and 4 analog outputs to your motor control scheme. Connect the Profibus-DP via D-Sub/RS-485, ensure proper grounding and shielded cabling, and configure the IRIG-B/time sync as needed. Verify phase current wiring for 5A/1A ratings and set up zone interlocking (ZSI) if your application requires selective protection. Finally, validate operation with a functional test to confirm monitoring, protection, and communication are functioning correctly.
Key specs include 8 digital inputs, 5 digital outputs, 4 analog outputs, and phase current options of 5A and 1A. The device measures Current, Voltage, and Power for protection and metering, supports IRIG-B timing, and offers ZSI for intelligent interlocking. It utilizes PROFIBUS-DP over D-Sub/RS-485 for fieldbus communication and is designed for motor protection in automation panels with a compact footprint.
Yes, the EMR-4000-2A0EA0 includes ZSI with a 1‑step setting, enabling zone-selective tripping to improve selectivity and minimize disruption during faults. This is particularly beneficial in large motor fleets and MCC environments where coordinated protection reduces overall downtime and simplifies maintenance planning while preserving system safety.
Compliance is listed as 'Contact Manufacturer' in the data sheet, so you should confirm specific certifications such as CE, IP ratings, or SIL with Eaton for your region and application. This ensures the device meets your industry requirements and installation standards before panel deployment.
By consolidating motor protection, metering, and fieldbus communication in a single unit, the EMR-4000-2A0EA0 reduces wiring, panel complexity, and installation time. Its integrated diagnostics and remote monitoring capabilities can lower maintenance costs, minimize unplanned downtime, and improve overall equipment reliability, delivering measurable ROI in manufacturing and process industries.