Eaton EMR-4000-2A0HA1 Motor Relay - 5A/1A Protection
Part Number: EMR-4000-2A0HA1
Quick Summary
The Eaton motor relay EMR-4000-2A0HA1 protects and smart-controls heavy motor loads in industrial automation. Maintenance teams face wiring complexity and downtime; this unit streamlines commissioning with integrated IO and Ethernet connectivity. Certification details vary by region and configuration; verify CE, IP, or SIL suitability with Eaton documentation. The design also supports Ethernet-based protocols and time synchronization to improve plant-wide safety and efficiency. With 8 DI, 5 DO, 4 AO, and URTD/IRIG-B options, this relay accelerates deployment and reduces wiring footprint. This translates to faster commissioning, lower maintenance costs, and improved asset visibility across motor fleets. Engineers will appreciate the flexible protocol support and ready-to-wire form factor for tight cabinet spaces.
Product Information
Extended Description
EMR-4000-2A0HA1 Eaton: Eaton, motor relay, 5A, 1A, Motor, over Ethernet RJ-45, over Ethernet RJ-45, 19-300Vdc, 40-250Vac, Current Protection and Metering,Voltage Protection and Metering,Power Protection and Metering, URTD Interface
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A0HA1
UPC
786679147641
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
IRIG-B URTD Interface
IEC 61850
over Ethernet RJ-45
Modbus / DNP3 TCP
over Ethernet RJ-45
Sensing inputs
Power Protection and Metering Current Protection and Metering Voltage Protection and Metering
Zone selective interlocking
1
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-4000-2A0HA1
Ethernet-enabled protection and metering allow remote diagnostics and interoperability across systems. The EMR-4000-2A0HA1 supports IEC 61850 over Ethernet RJ-45 and Modbus/DNP3 TCP, enabling seamless integration with modern substation and factory networks. In practice, this reduces commissioning time and supports centralized monitoring of motor health. The unit’s digital and analog I/O set—8 digital inputs, 5 digital outputs, 4 analog outputs—lets you implement precise motor sequencing and fault tracing without extra controllers, cutting cabinet complexity and hardware costs. URTD Interface and IRIG-B time synchronization provide accurate time stamping for event logs and coordinated control across devices. Zone selective interlocking (ZSI) capability speeds fault isolation, reducing downtime during faults in multi-motor drives. Installation-friendly packaging and a compact footprint support quick deployment in standard motor control cabinets, improving project timelines and long-term reliability. Installation and lifecycle support from Eaton help ensure consistent spare parts availability and firmware updates across fleets.
Get a Quick Quote for a Eaton EMR-4000-2A0HA1
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton EMR-4000-2A0HA1?
Enquire Now
FAQs
The EMR-4000-2A0HA1 offers 8 digital inputs, 5 digital outputs, and 4 analog outputs. It uses these I/O channels to implement motor start/stop sequencing, fault signaling, and basic protection logic without needing additional controllers. This enables compact, integrated control within standard motor control cabinets and reduces external wiring costs.
Yes. The device supports Modbus TCP and DNP3 TCP over Ethernet RJ-45, and IEC 61850 communications. This interoperability enables seamless integration with SCADA, substation networks, and PLCs, providing remote monitoring, centralized protection schemes, and easier data collection for energy metering and fault analysis.
The EMR-4000-2A0HA1 includes I/O options with URTD Interface and IRIG-B compatibility. Time synchronization improves correlated event logging across devices, enabling precise fault analysis and coordinated control during complex motor starts or multi-drive sequences.
The relay provides 5A/1A current protection and metering, along with power and voltage protection and metering capabilities. These features help detect overloads and abnormal conditions quickly, reducing arc-flash risk, preventing motor burnout, and enabling energy management for lower operating costs.
Eaton provides a warranty per policy 25-000—one year from installation or 18 months from shipment, whichever occurs first. Comprehensive manufacturer support and readily available replacement parts help minimize downtime, simplify maintenance planning, and reduce total cost of ownership for motor fleets.