Eaton EMR-4000-2A0CB0 Motor Relay - Ethernet Control

Part Number: EMR-4000-2A0CB0
Manufacturer
Eaton
Part number
EMR-4000-2A0CB0

Quick Summary

EMR-4000-2A0CB0 is an Eaton motor relay designed for rapid, reliable motor control in industrial automation. Users often struggle with downtime and wiring complexity when integrating protection, metering, and remote configuration into a single device. While this relay delivers voltage, current, and power protection along with Ethernet connectivity, exact compliance marks should be confirmed with the manufacturer. Typical installations benefit from Modbus or DNP3 RTU over RJ-45, plus voltage and current metering for better energy management. By consolidating control, protection, and diagnostics in one unit, it enables faster commissioning, easier upgrades, and a clearer path to predictive maintenance for drive systems.

Product Information

Extended Description

EMR-4000-2A0CB0 Eaton: Eaton, motor relay, 5A, 1A, Motor, over Ethernet RJ-45, Conformal Coated Circuit Boards, 19-300Vdc, 40-250Vac, Voltage Protection and Metering,Current Protection and Metering,Power Protection and Metering,
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A0CB0
UPC
786679147405
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
URTD Interface IRIG-B
Modbus / DNP3 RTU
over Ethernet RJ-45
Sensing inputs
Voltage Protection and Metering Current Protection and Metering Power Protection and Metering
Zone selective interlocking
1
Feature → Business Impact → Application: Conformal coated circuit boards provide improved durability in harsh environments, reducing field failures and maintenance costs while supporting longer service intervals in outdoor or dirty plants. This translates to lower total cost of ownership and higher line uptime for continuous process lines. Feature → Business Impact → Application: 19-300 VDC / 40-250 VAC input range expands compatibility with global motor drives, enabling a single device to serve diverse equipment fleets and simplifying spare parts inventories. Application: packaging, material handling, and continuous manufacturing where global supply chains demand versatile power options. Feature → Business Impact → Application: 8 digital inputs, 5 digital outputs, and 4 analog outputs offer local logic and control without extra controllers, decreasing panel wiring and installation time while enabling rapid fault isolation. Application: machine cells and robot rails needing compact, integrated I/O. Feature → Business Impact → Application: 1 zone selective interlocking and URTD Interface IRIG-B time reference improve fault coordination and precise time stamping across motor banks, boosting safety and reliability in heavy-duty conveyors and pump stations. Application: large motor installations with coordinated protection. Feature → Business Impact → Application: Modbus / DNP3 RTU over Ethernet provides easy remote configuration and diagnostics, reducing field visits and enabling condition monitoring. Application: distributed drive networks and remote service models.

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FAQs

Installers connect the device via the RJ-45 Ethernet port and configure Modbus or DNP3 RTU as required. The unit supports remote monitoring and parameter access over standard industrial networks, enabling centralized management and reduced on-site wiring changes.
The EMR-4000-2A0CB0 supports 19-300 VDC and 40-250 VAC input ranges, with phase current ratings of 5 A and 1 A. It includes voltage, current, and power protection with metering, suitable for diverse motor drive applications.
Yes, it includes Zone Selective Interlocking (ZSI) with a designation of 1, helping to coordinate fault clearing across multiple motors. This improves safety, reduces arc fault propagation, and speeds restoration in large drive systems.
Compliances are to be confirmed with the manufacturer. The product is covered by Eaton’s warranty policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first.
Conformal coated circuit boards resist moisture, dust, and chemical exposure, extending life in harsh environments and reducing field maintenance. This is especially beneficial for outdoor enclosures, washdown areas, or dusty production lines.