Eaton EMR-3MP0 Motor Relay - IEC61850 over Ethernet

Part Number: EMR-3MP0-2A9HB1
EMR-3MP0-2A9HB1
Manufacturer
Eaton
Part number
EMR-3MP0-2A9HB1
Category

Quick Summary

The Eaton EMR-3MP0 Motor Relay provides integrated motor protection and control for industrial drives in automation systems. Engineers often grapple with wiring complexity, remote diagnostics, and maintaining consistent protection logic across multi-vendor networks. Compliances are manufacturer-driven, and this device supports IEC 61850 over Ethernet, Modbus TCP, and DNP3 TCP/UDP for robust interoperability, with IRIG-B timing and projection-mount installation. Its wide input range and flexible I/O simplify deployment, reduce wiring and downtime, and enable faster commissioning. By enabling centralized protection, monitoring, and communication, this relay delivers tangible business value through improved uptime, informed maintenance planning, and scalable integration with modern control architectures.

Product Information

Extended Description

EMR-3MP0-2A9HB1 Eaton: Eaton, motor relay, EMR-3MP0-2, current only motor relay, 4I, 4O, 1AO ,IRIG-B, 5A PH and GND, Conf. coat, Projection mount, 19-300Vdc, 40-250V, IEC61850 or Modbus TCP or DNP3 TCP/UDP over Ethernet RJ45
Product Name
Eaton motor relay
Catalog Number
EMR-3MP0-2A9HB1
UPC
786689222611
Product Length/Depth
8.06 in
Product Height
8.62 in
Product Width
6.82 in
Product Weight
5.82 lb
Compliances
Contact Manufacturer
Application
Motor
Type
Motor relay
Analog inputs
0
Phase current
5A
Analog outputs
1
Digital inputs
4
Digital outputs
4
I/O options
IRIG-B URTD Interface
IEC 61850
over Ethernet RJ-45
Modbus / DNP3 TCP
over Ethernet RJ-45
Sensing inputs
Current Protection and Metering
Zone selective interlocking
0
Frequency rating
50/60 Hz
Mounting method
Projection
PowerPort-E 4.71 PowerPort-E 4.71 EMR-3MP0 Modbus® register maps EMR-3MP0 Modbus® register maps EMR-3MP0 technical data EMR-3MP0 motor protection relay instruction book 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-3MP0-2A9HB1
Feature → Business Impact → Application: 4 digital inputs and 4 digital outputs with 1 analog output provide versatile local control and status signaling, reducing external controller complexity while enabling precise motor protection logic in packaging lines or pump systems. This translates to faster fault isolation and lower service costs in manufacturing and water/wastewater facilities. Feature → Business Impact → Application: Wide voltage range of 19-300 VDC and 40-250 VAC supports both DC soft-start networks and traditional AC drives, enabling a single protective relay to cover legacy and modern installations, cutting spare parts and stock-keeping needs for plant modernization. Feature → Business Impact → Application: IEC 61850 over Ethernet RJ45, Modbus TCP, and DNP3 TCP/UDP communications enable seamless integration with substation and plant-wide control systems, reducing integration risk and speeding up commissioning in power and process environments. Feature → Business Impact → Application: IRIG-B URTD interface provides precise time synchronization for coordinated protection schemes and metering, improving event correlation and forensic analysis in high-availability applications. Feature → Business Impact → Application: Sensing inputs focused on Current Protection and Metering deliver actionable energy and fault data, enabling proactive maintenance and energy-management initiatives in motor-driven equipment. Feature → Business Impact → Application: Projection mounting and compact footprint with documented dimensions (8.06 in x 8.62 in x 6.82 in) simplify replacement and retrofits during plant upgrades, reducing installation time and ensuring compatibility with existing racks and housings. Feature → Business Impact → Application: 5A phase current rating and 0 analog inputs/1 analog output configuration provide predictable protective behavior while minimizing unnecessary sensor wiring, supporting clean OEM-to-plant handoffs in industrial automation projects.

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FAQs

To install the EMR-3MP0, mount the unit via projection mounting and connect the 4 digital inputs, 4 digital outputs, and 1 analog output to the motor control network. Power the device with the specified voltage range (19-300 VDC or 40-250 VAC) and wire the Ethernet RJ45 ports for IEC 61850, Modbus TCP, or DNP3. Consult the EMR-3MP0 instruction book for wiring diagrams and clearances.
Key performance specs include a 5A phase current rating, 50/60 Hz operation, 4I/4O and 1AO I/O configuration, current protection and metering sensing, and IRIG-B timing interface. The device supports protection and control for motor drives with integrated communications, enabling accurate fault detection and rapid response within automated systems.
Yes. The EMR-3MP0 provides IEC 61850 over Ethernet RJ45 and supports Modbus TCP and DNP3 TCP, facilitating interoperability with substations and PLC-based control systems. IRIG-B timing further enhances synchronization in distributed protection schemes, simplifying integration into modern automation architectures.
Compliance specifics should be confirmed with Eaton, as formal CE, SIL, or IP ratings may vary by region and installation. The unit is designed to interface with IEC 61850 and other standard industrial protocols; for regulatory or certification needs, consult Eaton’s documentation or a local representative to ensure alignment with your facility’s requirements.
The relay consolidates protection, metering, and communications, enabling remote diagnostics and centralized monitoring. This reduces on-site visits, shortens fault diagnosis time, and supports predictive maintenance. A single device covering protection and networking can lower spare parts inventories, shorten commissioning cycles, and improve uptime for motor-driven equipment.