Eaton EMR-3MP0-2A9CB1-1 Motor Relay - Modbus TCP
Part Number: EMR-3MP0-2A9CB1-1
Quick Summary
Eaton motor relay EMR-3MP0-2A9CB1-1 is a compact protective device designed to manage motor start/stop and protection in industrial drives. Many teams struggle to integrate robust motor-relay functionality with standard PLC Ethernet networks while keeping a small footprint. Compliance details vary by region; buyers often look for SIL, CE and IP-rated protection, and Eaton provides datasheets that confirm the exact standards for each variant. This model supports Modbus TCP over Ethernet, 4 digital inputs and 4 outputs, plus a 5A current rating, streamlining both procurement and installation. By standardizing on this relay, maintenance, diagnostics, and plant-wide monitoring become simpler, enabling faster MTBF improvements and reduced downtime.
Product Information
Extended Description
EMR-3MP0-2A9CB1-1 Eaton: Eaton, EMR-3MP0-2, current only motor relay, 4I, 4O, 1AO , IRIG-B, 5A PH and GND, Modbus TCP or DNP3 TCP/UDP over Ethernet RJ45,5A PH and GND, Conf. coat, Fixed CT Term, Projection mount, with MP Term Conv
Product Name
Eaton motor relay
Catalog Number
EMR-3MP0-2A9CB1-1
UPC
786689239404
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
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
MP-3000 to EMR-3MP0 Settings Sheet
MP-3000 to EMR-3MP0 Settings Sheet
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-3MP0-2A9CB1-1
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Modbus TCP over Ethernet RJ-45 enables seamless plant-wide communications. Business Impact: Reduces wiring complexity and enables remote diagnostics, accelerating fault isolation and maintenance planning. Application: Ideal for manufacturing lines and automated packaging where SCADA integration is essential. Feature: 4 digital inputs, 4 digital outputs, and 1 analog output provide flexible I/O for local signaling and control. Business Impact: Improves interlock schemes and status reporting while keeping panel density low. Application: Conveyor systems, pump control, and process lines with compact control needs. Feature: 5A phase current rating and current protection/meters support. Business Impact: Protects motors against overloads and provides metering data for energy management and efficiency projects. Application: Heavy-duty motors in pumps and fans. Feature: I/O options including IRIG-B URTD interface for time synchronization. Business Impact: Aligns control actions with precise timing across devices, improving coordinated sequences. Application: Power distribution and synchronized automation in batch and process setups. Feature: Projection mounting with MP terminal conversion simplifies installation and retrofit. Business Impact: Decreases installation time and reduces cabinet space requirements. Application: Upgrading legacy motor control panels in retrofit projects. Feature: Comprehensive documentation and Modbus register maps support quick commissioning. Business Impact: speeds setup, reduces commissioning risk, and enhances long-term maintainability. Application: System integrators deploying EMR-3MP0-2A9CB1-1 in SCADA-enabled plants.
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FAQs
Yes. The EMR-3MP0-2A9CB1-1 provides 4 digital inputs and 4 digital outputs, which aligns with typical control architectures. Its projection mounting plus MP terminal conversion supports retrofit into existing cabinets, reducing rework. When integrating, refer to the Eaton datasheet for exact terminal maps, wiring guidelines, and any region-specific compliance notes.
Key performance specs include a 5A phase current rating, 50/60 Hz operation, Modbus TCP over Ethernet RJ-45, and an IRIG-B URTD interface for time synchronization. The device also provides 4I/4O I/O and 1 analog output for protection coordination, monitoring, and interlocks, enabling robust motor protection within automated networks.
Yes. The EMR-3MP0-2A9CB1-1 supports reliable motor protection and Ethernet-based communication suitable for packaging lines and water/wastewater processes. Its Modbus TCP interface facilitates SCADA integration, while 4I/4O I/O supports local signaling and interlock logic essential in continuous-process environments.
Compliances are listed as provided by the manufacturer; verify the exact SIL, CE, and IP-related certifications in the Eaton specification sheet for EMR-3MP0-2A9CB1-1. Access the datasheet and register maps to confirm region-specific standards and ensure alignment with your safety and regulatory requirements.
Consolidating motor protection, IO, and communication in a single unit reduces wiring, simplifies diagnostics, and shortens maintenance cycles. The Modbus TCP interface enables remote fault notification and centralized monitoring, contributing to faster MTBF improvements and lower downtime, while installation efficiency lowers initial project costs.