Eaton EMR-4000-2A0CA1 Motor Relay - ZSI
Part Number: EMR-4000-2A0CA1
Quick Summary
Eaton motor relay EMR-4000-2A0CA1 provides robust motor protection, metering, and control for industrial automation projects. This device addresses the common challenge of integrating motor protection with scalable I/O and secure communications in harsh plant environments. While exact compliance certifications should be confirmed with the manufacturer, this relay supports industry-standard interfaces such as Modbus TCP or DNP3 TCP/UDP over Ethernet, and includes zone selective interlocking (ZSI) for improved fault isolation. By consolidating 8 digital inputs, 5 digital outputs, and multiple sensing and communication options in a single unit, it reduces wiring, simplifies commissioning, and enhances overall system reliability and uptime. This combination of protection and connectivity translates to lower total cost of ownership and faster ROI for motor-driven applications.
Product Information
Extended Description
EMR-4000-2A0CA1 Eaton: Eaton, EMR-4000-2, current and voltage motor relay, 8I, 5O, 4AO, ZSI, IRIG-B, 5/1A PH and GND, Modbus TCP or DNP3 TCP/UDP over Ethernet RJ45, No conf. coat, Projection mount
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A0CA1
UPC
786679147399
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
Modbus / DNP3 RTU
over Ethernet RJ-45
Sensing inputs
Current Protection and Metering Power Protection and Metering Voltage Protection and Metering
Zone selective interlocking
1
Introduction to Eaton's E-Series Relay, Step 1: Physical Connections
Introduction to Eaton's E-Series Relay, Step 1: Physical Connections
Introduction to Eaton's E-Series Relay, Step 1: Physical Connections
Introduction to Eaton's E-Series Relay, Step 1: Physical Connections
Introduction to Eaton's E-Series Relay, Step 1: Physical Connections
Introduction to Eaton's E-Series Relay, Step 1: Physical Connections
Eaton Specification Sheet - EMR-4000-2A0CA1
Feature → Business Impact → Application: 8 digital inputs enable comprehensive motor and process condition monitoring, reducing unplanned downtime and enabling proactive maintenance; the business impact is improved plant availability and predictable maintenance scheduling in conveyor lines and process trains. Feature → Application → When integrated with 5 digital outputs and 4 analog outputs, you gain precise control signals and metering data to optimize torque, speed, and energy usage in pump skids or fans. Feature → Integration capability → Modbus TCP or DNP3 TCP/UDP over Ethernet RJ-45 provides seamless SCADA and MES connectivity, speeding up project timelines and enabling centralized analytics for energy optimization. Feature → Zone Selective Interlocking (ZSI) → Improves fault isolation and protection coordination, lowering arc-flash exposure and equipment damage in high-availability motor systems. Feature → IRIG-B URTD Interface and time-sync options → Enables synchronized protection schemes across multi-site installations, ensuring accurate fault logging and coordinated relays in complex plants. Feature → Projection mount and compact footprint with dimensions around 8–9 inches in each axis → Simplifies panel layout, reduces installation time, and allows easy retrofits in existing switchgear or motor control centers. These capabilities collectively boost reliability, compliance readiness, and lifecycle cost efficiency for industrial motor applications across manufacturing, packaging, and material handling sectors.
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FAQs
The EMR-4000-2A0CA1 communicates over Ethernet using Modbus TCP or DNP3 TCP/UDP, enabling straightforward integration with modern SCADA and MES systems. The RJ45 interface supports standard industrial network topologies, allowing easy data exchange for monitoring, control, and remote diagnostics.
The relay provides 8 digital inputs, 5 digital outputs, 4 analog outputs, and supports current sensing with two phase current options: 5A and 1A. It also offers IRIG-B time sync and an IRIG-B URTD interface as I/O options for precise time-coordinated protection across multiple devices.
Yes, EMR-4000-2A0CA1 includes Zone Selective Interlocking (ZSI), which coordinates protection across motor circuits to rapidly isolate faults, minimize arc-flash exposure, and protect upstream equipment, improving overall system reliability in high-availability motor networks.
The product carries Eaton’s standard warranty (one year from installation or 18 months from shipment, whichever occurs first). Compliance details are listed as ‘Contact Manufacturer’ for formal certifications; confirm CE, UL, IP ratings, and region-specific standards with Eaton prior to purchase.
Dimensionally, the unit fits a compact footprint (approximately 8 in L, 8.7 in H, 9.72 in W) with a projection mount option. Plan for panel space, wiring chassis routes for 8 digital inputs, 5 digital outputs, and 4 analog outputs, and ensure compatible Ethernet/IRIG-B interface wiring for reliable communications and time synchronization.