Eaton motor relay EMR-4000-2A1GB0 IRIG-B Interface
Part Number: EMR-4000-2A1GB0
Quick Summary
Eaton motor relay EMR-4000-2A1GB0 provides reliable motor control for OEM drive systems. Engineers often face the challenge of consolidating protection, metering, and communications into a single, dependable package without overcomplicating the control cabinet. This model supports Modbus/RS-485, IRIG-B time synchronization, and conformal coated circuitry to withstand demanding industrial environments. Typical certifications to verify include CE marking, UL/CSA approvals, and IP ratings, though exact approvals should be confirmed with Eaton for this specific device. In practice, the EMR-4000-2A1GB0 delivers robust motor protection with integrated sensing and metering while enabling seamless integration with existing automation networks, reducing wiring, and improving system reliability and uptime.
Product Information
Extended Description
EMR-4000-2A1GB0 Eaton: Eaton, motor relay, 5A, 1A, Motor, 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-4000-2A1GB0
UPC
786679146903
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 Sensitive Ground Input IRIG-B
Modbus / DNP3 RTU
D-Sub / RS-485
Sensing inputs
Voltage Protection and Metering Current Protection and Metering Power 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-4000-2A1GB0
Selling Policy 25-000 - Distribution and Control Products and Services
Feature: Flexible I/O and robust integration — Business Impact: Reduces the need for external I/O modules, saving panel space and wiring complexity. Application: Ideal for motor control panels requiring 8 digital inputs, 5 digital outputs, and 4 analog outputs with clean SCADA connectivity. Feature: RS-485 Modbus / DNP3 RTU communications — Business Impact: Enables straightforward, industrial-grade communication with PLCs and SCADA systems, improving data visibility and control. Application: Distributed drive networks and power management schemes. Feature: IRIG-B time synchronization and URTD interface — Business Impact: Delivers precise time stamping for coordinated control and event logging across multi-device deployments. Application: Plant-wide protection schemes and event recording. Feature: Sensing inputs for voltage/current/power metering — Business Impact: Enhances protection logic and energy monitoring, supporting better outage analysis and power quality reporting. Application: Power distribution and motor protection applications. Feature: Conformal coating and rugged enclosure compatibility — Business Impact: Improves reliability in humid, dusty, or harsh environments, reducing maintenance cycles. Application: Motor drives in challenging factory floors and outdoor installations. Feature: Zone selective interlocking and 1:1 ratio protection — Business Impact: Minimizes downtime by selective tripping, protecting only the affected circuit and maintaining production flow. Application: Coordinated motor protection in multi-motor setups.
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FAQs
EMR-4000-2A1GB0 provides a D-Sub RS-485 interface for Modbus RTU communication. To connect, use a shielded RS-485 cable with proper termination, assign a unique Modbus address, and configure baud rate and parity per the system requirements. The Eaton datasheet recommends following standard Modbus wiring practices and consulting the PowerPort-E or related Eaton resources for network topology examples and setup steps.
The unit offers 8 digital inputs, 5 digital outputs, and 4 analog outputs, with 0 analog inputs. This enables compact control and monitoring of motor start/stop signals, status indicators, and analog setpoints without needing extra I/O modules. Use the 8 DI for safety interlocks or feedback, the 5 DO for relays or PWM signaling, and the 4 AO for voltage or current setpoints in drive control tasks.
EMR-4000-2A1GB0 includes voltage protection and metering, current protection and metering, and power protection and metering. These features support accurate power quality monitoring, fast fault detection, and detailed energy usage data. Combined with zone selective interlocking, the device helps achieve selective fault clearance and improved overall system reliability in motor control schemes.
The product measures 8.06 in in depth, 8.7 in in height, and 9.72 in in width, weighing approximately 9.259 lb. When installing, plan for space on a robust panel or enclosure, account for wiring clearance, and consider conformal coating benefits for humid or dusty environments. Mounting should follow Eaton recommendations for secure connector access and proper ventilation.
Eaton provides Selling Policy 25-000 coverage for this product: one year from installation or eighteen months from shipment, whichever comes first. For datasheets, installation guidance, and compliance details, refer to Eaton’s specification sheets and the partner portal. Additional support videos and documents are available to assist with integration and ongoing maintenance.