Eaton EMR-4000-2A1EB1 Motor Relay - Zone Interlocking
Part Number: EMR-4000-2A1EB1
Quick Summary
Eaton motor relay EMR-4000-2A1EB1 delivers integrated motor protection and control for industrial drive panels. This compact, feature-rich device helps you simplify wiring and panel space while increasing reliability. Designers and technicians often contend with aligning motor protection, interlocking, and network communication across multiple devices, risking downtime and misconfigurations. With voltage and current protection and metering, plus zone interlocking and RS-485/PROFIBUS-DP connectivity, this relay supports robust automation architectures. Its conformal coating and broad voltage range enhance performance in demanding environments, reducing maintenance cycles. By combining powerful I/O, network readiness, and protective functions, EMR-4000-2A1EB1 delivers measurable value for modern industrial automation projects.
Product Information
Extended Description
EMR-4000-2A1EB1 Eaton: Eaton, motor relay, 5A, 1A, Motor, over D-Sub / RS-485, Conformal Coated Circuit Boards, 19-300Vdc, 40-250Vac, Current Protection and Metering,Power Protection and Metering, Sensitive Ground Input,
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A1EB1
UPC
786679147160
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
Sensitive Ground Input IRIG-B URTD Interface
PROFIBUS-DP
over D-Sub / RS-485
Sensing inputs
Voltage Protection and Metering Power Protection and Metering Current Protection and Metering
Zone selective interlocking
1
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-4000-2A1EB1
The EMR-4000-2A1EB1 motor relay offers wide compatibility with a broad voltage range (19-300 Vdc, 40-250 Vac), enabling use across diverse motor applications while simplifying procurement. This translates to lower stock requirements and faster panel assembly in automation environments where space is at a premium. Its 8 digital inputs, 5 digital outputs, and 4 analog outputs provide rich local control and straightforward integration with existing controllers, reducing external I/O modules and wiring complexity in drive systems. The device also includes Sensing inputs for Voltage, Power, and Current Protection and Metering, delivering precise visibility into motor health and energy usage for better asset management. Zone selective interlocking enhances fault discrimination, minimizing downtime and collateral damage during faults in high‑throughput facilities. RS-485 based PROFIBUS-DP communication ensures reliable fieldbus integration with standard automation networks, while IRIG-B URTD and Sensitive Ground Input options support precise timing and grounding requirements in critical applications. The conformal coating further extends reliability in harsh environments, improving uptime in manufacturing, packaging, and process control settings. Warrantied by Eaton, this relay aligns with professional-grade motor protection and control needs while reducing total cost of ownership through integration and efficiency gains.
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FAQs
For installation in new panels, plan space for an 8.7 inch high, 9.72 inch wide unit weighing about 9.26 lb. Ensure adequate clearance for wiring, consider the 19-300 Vdc and 40-250 Vac supply range, and account for the conformal coated circuit boards. Leverage 8 digital inputs, 5 digital outputs, and 4 analog outputs to minimize external controllers and wiring, while using RS-485 PROFIBUS-DP for network integration.
Zone selective interlocking concentrates protection to the specific zone or device where a fault occurs. This reduces fault duration, minimizes collateral damage, and speeds recovery, which translates to higher plant availability and lower maintenance costs. When combined with integrated metering and protection functions, you gain clearer fault diagnostics and faster corrective action within automation panels.
Yes. The EMR-4000-2A1EB1 supports PROFIBUS-DP over D-Sub RS-485, allowing straightforward integration with common industrial networks. This, together with IRIG-B URTD timing interface options and robust I/O, enables seamless coordination with existing PLCs and automation controllers while maintaining reliable motor drive communications.
The relay includes Voltage Protection and Metering, Power Protection and Metering, and Current Protection and Metering to monitor and safeguard motor operation. With 5A/1A phase currents and multiple I/O options, you can implement precise protection strategies, capture energy data, and optimize maintenance schedules while reducing unplanned downtime in production environments.
The device is covered by Eaton’s policy 25-000, with a one‑year warranty from installation or eighteen months from shipment, whichever occurs first. For engineering and integration support, refer to Eaton’s documentation and downloadable resources such as the specification sheet and PowerPort-E monitoring videos, which aid in commissioning and ongoing maintenance.