Eaton EMR-5000-2A1BB1 Motor Relay - RS-485 Modbus/DNP3
Part Number: EMR-5000-2A1BB1
Quick Summary
EMR-5000-2A1BB1 Motor Relay is a rugged motor protection device designed for industrial drives. It helps prevent costly downtime by providing integrated protection and remote monitoring for motors in harsh manufacturing environments. While the data file notes compliance details as manufacturer-driven, typical deployments consider industry standards such as CE, RoHS, and IP-related considerations, with final certification confirmed by Eaton. This device leverages Modbus RTU or DNP3 RTU over RS-485, 16 digital inputs and 9 digital outputs, delivering robust control and visibility to engineering teams while enabling scalable, cost-efficient motor protection and monitoring.
Product Information
Extended Description
EMR-5000-2A1BB1 Eaton: Eaton, motor relay, EMR-4000, 19-300 Vdc, 40-250 Vac, Motor protection relay, Modbus RTU or DNP3 RTU over RS485, 5A, 1A, 16, 9, Removable, Motor, over RS-485, Conformal Coated Circuit Boards, 19-300Vdc, 40-250Vac, 50/60 Hz, Projection,
Product Name
Eaton motor relay
Catalog Number
EMR-5000-2A1BB1
UPC
786679158869
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
Product Category
Motor protection relay
Base relay
EMR-4000
Analog inputs
0
Communication
Modbus RTU or DNP3 RTU over RS485
Phase current
5A, 1A
Analog outputs
0
Digital inputs
16
Digital outputs
9
I/O options
URTD Interface IRIG-B Sensitive Ground Input
Modbus / DNP3 RTU
over RS-485
Sensing inputs
Differential Protection Current Protection and Metering Voltage Protection and Metering Power Protection and Metering
Zone selective interlocking
1
Frequency rating
50/60 Hz
Mounting method
Projection
Terminals
Removable
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Interfacing with an Eaton E-Series Relay, Step 6: Front Panel Navigation
Eaton Specification Sheet - EMR-5000-2A1BB1
RS-485 communications with Modbus RTU or DNP3 RTU enables seamless integration with SCADA and PLC systems, reducing wiring complexity and enabling remote diagnostics. This translates to faster troubleshooting, reduced on-site visits, and improved overall equipment effectiveness (OEE) in large-scale motor networks. 16 digital inputs and 9 digital outputs provide flexible I/O for logic and interlock schemes, avoiding extra controllers and simplifying panel layouts. The unit supports 50/60 Hz operation and a wide voltage range (19-300 VDC, 40-250 VAC), enabling a single device to cover diverse motors across an plant floor, cutting spare-part variety and inventory costs. Conformal-coated circuit boards and removable terminals improve reliability in challenging environments and ease maintenance or replacement during planned outages. The built-in protections, combined with a projection mounting design, offer straightforward installation in compact enclosures, helping you meet tight project timelines. Zone selective interlocking and differential protection features support modern, selective fault isolation, improving safety and reducing outage impact. In practice, this means faster fault isolation, better protection coordination, and clearer maintenance budgets for motor-driven systems.
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FAQs
Install the Eaton EMR-5000-2A1BB1 with projection mounting for space efficiency and use the removable terminals to simplify wiring. Route RS-485 communication lines for Modbus RTU or DNP3 RTU, connect 16 digital inputs and 9 digital outputs as required by your motor protection scheme, and verify differential and current protections are configured for the motor load. Follow the manufacturer’s guidelines for clearance, protection class and cooling.
The EMR-5000-2A1BB1 supports Modbus RTU or DNP3 RTU over RS-485, enabling direct integration with common PLCs and SCADA systems. This allows remote monitoring, fault reporting, and protective trip signaling to be centralized. Ensure proper RS-485 network topology, terminate lines at the ends, and map discrete I/O and protective alarms into your control architecture for coherent visibility.
Yes. The EMR-5000-2A1BB1 is rated for 50/60 Hz operation and accommodates a wide input range of 19-300 VDC and 40-250 VAC, enabling use across diverse motor applications without needing multiple relays. This flexibility supports multi-mite installations and simplifies procurement for plants with varied motor types and voltages.
The relay provides 16 digital inputs and 9 digital outputs, allowing sophisticated interlock logic, fault signaling, and motor control sequencing. The URTD Interface, IRIG-B sensitivity, and ground options extend integration with timing and synchronization networks. With concurrent protection features such as differential, current, voltage, and power protection, you can implement selective tripping and coordinated protection across motor fleets.
Eaton’s policy provides a one-year warranty from installation or eighteen months from shipment, whichever occurs first. The device uses conformal-coated circuit boards and removable terminals to improve reliability and ease maintenance in challenging environments. For harsh installations, verify enclosure ratings and environmental controls, and schedule regular diagnostics to optimize protective settings and reduce unplanned downtime.