Eaton motor relay EMR-4000-2A0FA1 - IRIG-B over fiber
Part Number: EMR-4000-2A0FA1
Quick Summary
Eaton motor relay EMR-4000-2A0FA1 provides comprehensive motor control and protection for industrial drives. Networking complex motor systems often creates wiring confusion and integration bottlenecks; this device consolidates protection, sensing, and communication in a single, rugged package. While certification specifics must be confirmed with the manufacturer, the unit supports IRIG-B timing and fiber-based Modbus RTU or DNP3 RTU, plus Zone Selective Interlocking for selective fault isolation. With its scalable I/O and projection-mount form factor, it reduces installation time and supports future expansion, delivering reliability, traceability, and lower total cost of ownership. This combination is well-suited to motors in conveyors, pumps, and processing lines where uptime and precise control matter.
Product Information
Extended Description
EMR-4000-2A0FA1 Eaton: Eaton, EMR-4000-2, current and voltage motor relay, 8I, 5O, 4AO, ZSI, IRIG-B, 5/1A PH and GND, Modbus RTU or DNP3 RTU over Fiber Optic ST, No conf. coat, Projection mount
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A0FA1
UPC
786679147566
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 fiber optic ST
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 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Programming an Eaton E-Series Relay, Step 2: Getting Started with PowerPort-E
Eaton Specification Sheet - EMR-4000-2A0FA1
Feature: Eight digital inputs and five digital outputs provide local interlocking, signaling, and basic control without excessive PLC wiring. Business Impact: Reduces panel wiring, shortens commissioning, and improves fault visibility for faster startup. Application: Conveyor and pump drives in manufacturing lines. Feature: Four analog outputs and two phase current options (5A, 1A) enable basic metering and proportional control signals. Business Impact: Streamlines energy management and reduces external I/O modules. Application: Motor protection schemes for mixed-load equipment. Feature: Modbus RTU and DNP3 RTU over fiber optic ST with IRIG-B timing. Business Impact: Delivers EMI-immune, long-distance communication and precise time synchronization, simplifying plant-wide monitoring. Application: Remote substation protection networking and distributed control. Feature: Zone Selective Interlocking (ZSI) support. Business Impact: Enhances fault isolation and reduces collateral damage during faults, lowering repair costs and downtime. Application: Large motor banks and critical equipment arrays. Feature: Sensing inputs cover Power, Current, and Voltage Protection and Metering. Business Impact: Provides comprehensive protection data, enabling proactive maintenance and energy accounting. Application: Power protection and energy management in industrial facilities. Feature: Projection mount and compact enclosure footprint (8.06 in x 8.7 in x 9.72 in; 9.259 lb). Business Impact: Eases retrofit into existing cabinets and accelerates installation. Application: OEM integrations and retrofit projects in occupied switchgear.
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FAQs
EMR-4000-2A0FA1 supports a projection-mount installation and a compact footprint suitable for retrofit into existing panel spaces. It provides eight digital inputs, five digital outputs, four analog outputs, and two phase-current options (5A and 1A). Its fiber-based Modbus RTU and DNP3 RTU interfaces enable EMI-resistant communication to remote I/O, reducing wiring complexity and enabling straightforward integration with existing control architectures.
The relay includes eight digital inputs, five digital outputs, four analog outputs, and no analog inputs. Phase current options are 5A and 1A, catering to a range of motor protection and metering needs. This combination supports basic local interlocking and external signaling while enabling modest metering and control signaling for compact motor protection schemes.
Best-suited for industrial drives in manufacturing lines, conveyors, pumps, and processing equipment, where reliable motor protection, shared timing references, and long-distance communications are critical. The ZSI capability helps coordinate protection across motor banks, reducing mis-trips, while IRIG-B timing ensures synchronized operations in plants with distributed equipment.
Compliance details for this model are listed as ‘Contact Manufacturer.’ When evaluating for a specific facility, verify SIL readiness, CE conformity, and IP ratings with Eaton or a distributor. This ensures the relay meets your plant’s safety, reliability, and environmental requirements before deployment in critical motor protection schemes.
By consolidating protection, metering, and communication into a single device, maintenance is simplified and spare parts logistics are reduced. Fiber communications improve reliability in EMI-heavy environments, while ZSI minimizes fault propagation. These features translate to reduced downtime, faster repairs, and lower total cost of ownership over the life of motor-driven systems.