Eaton EMR-5000-2B1FA1 Motor Relay - Fiber Optic Modbus
Part Number: EMR-5000-2B1FA1
Quick Summary
The Eaton EMR-5000-2B1FA1 motor relay is designed to protect and monitor industrial motors in automation and packaging lines. Operators often struggle with nuisance trips, slow fault diagnostics, and integration gaps when tying motor protection to modern control networks. Compliances are listed as 'Contact Manufacturer' for this model, but Eaton's EMR family typically aligns with CE and other global standards; this unit supports 50/60 Hz operation and fiber-based Modbus RTU or DNP3 RTU. With two analog inputs, two analog outputs, eight digital inputs and nine digital outputs, it fits motor protection relay roles while enabling remote monitoring, reduced downtime, and simpler control-system integration.
Product Information
Extended Description
EMR-5000-2B1FA1 Eaton: Eaton, motor relay, EMR-4000, 19-300 Vdc, 40-250 Vac, Motor protection relay, Modbus RTU or DNP3 RTU over Fiber Optic ST, 5A, 1A, 8, 9, Removable, Motor, over fiber optic ST, 19-300Vdc, 40-250Vac, 50/60 Hz, Sensitive Ground Input,
Product Name
Eaton motor relay
Catalog Number
EMR-5000-2B1FA1
UPC
786679159552
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
2
Communication
Modbus RTU or DNP3 RTU over Fiber Optic ST
Phase current
5A, 1A
Analog outputs
2
Digital inputs
8
Digital outputs
9
I/O options
Sensitive Ground Input IRIG-B URTD Interface
Modbus / DNP3 RTU
over fiber optic ST
Sensing inputs
Differential Protection Power Protection and Metering Voltage Protection and Metering Current 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 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-5000-2B1FA1
Feature → Business Impact → Application: Modbus RTU or DNP3 RTU over Fiber Optic ST provides secure, interference-free remote communication, enabling real-time diagnostics and coordinated protection across multiple devices in harsh environments such as metal fabrication or material handling. Application: motor protection relays in conveyors and pumps benefit from reliable long-distance signaling and faster fault isolation. Feature → Business Impact → Application: Eight digital inputs and nine digital outputs plus two analog inputs and two analog outputs deliver rich sensing and control for complex motor circuits, reducing wiring, enabling PLC integration, and supporting advanced protection schemes in packaging lines. Application: integration with existing control architectures minimizes replacement costs and shortens commissioning time. Feature → Business Impact → Application: Zone selective interlocking and multiple sensing inputs (differential, voltage, current, power metering) improve selective tripping, limit arc-flash exposure, and enhance grid stability. Application: large motor drives and distributed motor banks in process industries. Feature → Business Impact → Application: Removable terminals and projection mounting simplify installation and maintenance, speeding up commissioning, upgrades, and field servicing. Application: retrofit projects and relocatable machinery with minimal downtime. Feature → Business Impact → Application: 50/60 Hz compatibility and all-metal protection options support robust operation across global sites, ensuring consistent performance in diverse electrical environments. Application: international manufacturing facilities requiring flexible protection timing and metering data.
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FAQs
Yes. The EMR-5000-2B1FA1 is designed as a motor protection relay in the EMR family and supports compatibility with the EMR-4000 base relay. It uses a projection mounting method and removable terminals to simplify installation, field upgrades, and retrofits, enabling smoother migration from legacy EMR configurations while preserving established wiring practices.
EMR-5000-2B1FA1 operates from 19 to 300 V DC and 40 to 250 V AC, accommodating 50/60 Hz mains. It provides two analog inputs, two analog outputs, eight digital inputs, and nine digital outputs, with current sensing at 5 A and 1 A for protection and metering. Communication is via Modbus RTU or DNP3 RTU over fiber optic ST.
Fiber optic Modbus RTU eliminates electrical noise coupling and EMI, allowing reliable remote fault reporting, diagnostics, and control signaling across long distances. For critical motors and drives, this improves situational awareness, reduces wiring complexity, and supports secure, tamper-resistant communications in harsh industrial environments.
This relay excels in motor protection for conveyors, pumps, and fans in manufacturing and packaging. With zone selective interlocking, differential, voltage, current, and power protection plus metering, it enables precise fault isolation, improved uptime, and efficient maintenance planning, while supporting integration with PLCs and SCADA through fiber-based communication.
The EMR-5000-2B1FA1 follows Eaton’s warranty policy: one year from installation or eighteen months from shipment, whichever occurs first. For maintenance, rely on removable terminals and the EMR-4000 base compatibility for easy upgrades. Regular diagnostic data available through fiber communications helps plan preventive maintenance and optimize asset ROI.