Eaton EMR-4000-2A0HB1 Motor Relay - IEC 61850 RJ-45
Part Number: EMR-4000-2A0HB1
Quick Summary
Eaton motor relay EMR-4000-2A0HB1 delivers intelligent motor control for industrial drives and protection in automation systems. Engineers often struggle with integrating protective relays across Ethernet networks while maintaining reliability in harsh environments. This device supports IEC 61850 over Ethernet RJ-45, conformal coated circuit boards, and flexible I/O to simplify integration in rugged panels. With up to 5A and 1A phase current protection, and a broad supply range of 19-300 VDC and 40-250 VAC, it scales to diverse motor applications. The combination of robust communication options and rugged construction helps reduce downtime, streamline commissioning, and lower total cost of ownership in energy-intensive industries.
Product Information
Extended Description
EMR-4000-2A0HB1 Eaton: Eaton, motor relay, 5A, 1A, Motor, over Ethernet RJ-45, over Ethernet RJ-45, Conformal Coated Circuit Boards, 19-300Vdc, 40-250Vac, Current Protection and Metering,Power Protection and Metering,
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A0HB1
UPC
786679147696
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
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-4000-2A0HB1
Feature → Business Impact → Application: The EMR-4000-2A0HB1 includes Ethernet-enabled protection and metering, enabling remote monitoring and faster fault isolation across plant networks, which reduces unplanned downtime and improves OEE in large motor-driven systems. This translates to lower maintenance costs and improved asset availability in continuous processes such as pumping, conveyors, and fans. Feature → Application → 24/7 reliability: Conformal coating on circuit boards protects against dust, moisture, and chemicals common in industrial environments, increasing mean time between failures (MTBF) and extending service life in harsh facilities. Feature → Business Impact → Application: Eight digital inputs and five digital outputs with four analog outputs provide versatile I/O topology for motor start/stop sequencing, fault signaling, and metering, enabling compact panel designs and faster wiring in OEM and end-user installations. Feature → Application → Compliance and integration: IRIG‑B URTD interface and IEC 61850 plus Modbus/DNP3 TCP over Ethernet RJ-45 enable seamless integration with existing automation architectures, reducing integration risk and accelerating project timelines in power and process sectors. Feature → Business Impact → Application: Current protection and metering across 5A and 1A phase currents support accurate protection coordination and energy accounting, improving regulatory compliance and providing actionable data for energy management programs in facilities and utilities. Warranty and support considerations: With Eaton’s standard policy offering a one-year warranty from installation or eighteen months from shipment, whichever occurs first, customers gain built‑in risk mitigation and predictable after-sales support for critical motor protection deployments.
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FAQs
To install, mount the unit securely in a compliant enclosure, connect the RJ-45 interface for IEC 61850, Modbus TCP, or DNP3 TCP networks, and wire the 8 digital inputs, 5 digital outputs, and 4 analog outputs according to the motor control wiring diagram. Ensure the supply is within 19-300 VDC or 40-250 VAC, and secure the conformal-coated boards to withstand harsh conditions. Verifying proper grounding and shield termination is essential to minimize EMI.
Key specs include phase currents of 5 A and 1 A, supply ranges of 19–300 V DC and 40–250 V AC, and four analog outputs with eight digital inputs and five digital outputs. It supports current protection and metering, voltage protection and metering, and zone selective interlocking, making it suitable for integrated motor protection schemes in industrial settings.
Yes. The EMR-4000-2A0HB1 provides Ethernet RJ-45 interfaces for IEC 61850, Modbus TCP, and DNP3 TCP protocols, enabling seamless integration with modern substation and plant automation networks. This compatibility reduces engineering effort, improves interoperability with existing devices, and simplifies data exchange for protection, control, and metering tasks.
This relay is ideal for motor protection and metering in process automation, pumping, conveyors, and HVAC drives. Its 8/5/4 I/O configuration supports motor start/stop sequences and fault signaling, while IEC 61850 and TCP-based protocols enable centralized monitoring and coordinated protection across distributed automation architectures.
Eaton offers a one-year warranty from the date of installation or an 18-month warranty from shipment, whichever occurs first. For support, verify compliance status with the manufacturer and confirm availability of datasheets, spec sheets, and software/firmware updates. This helps ensure ongoing reliability and predictable maintenance planning for critical motor systems.