Eaton EMR-4000-2A1DB1 Motor Relay - Over Fiber Optic ST
Part Number: EMR-4000-2A1DB1
Quick Summary
Eaton motor relay EMR-4000-2A1DB1 protects and controls industrial motors in automated production lines. Engineers face challenges integrating multiple I/O while maintaining reliable protection and uptime in harsh environments. In practice, CE compliance and rugged packaging are critical for safe operation, with considerations also given to IP ratings and SIL-related features. The unit supports wide voltage ranges of 19-300 Vdc and 40-250 Vac, plus 8 digital inputs, 5 digital outputs, and 4 analog outputs, enabling robust motor protection within a PowerPort-E programming workflow. For businesses, this translates to faster commissioning, simplified wiring, and improved diagnostic visibility across diverse industrial drives.
Product Information
Extended Description
EMR-4000-2A1DB1 Eaton: Eaton, motor relay, 5A, 1A, Motor, over fiber optic ST, Conformal Coated Circuit Boards, 19-300Vdc, 40-250Vac, Power Protection and Metering,Current Protection and Metering, Sensitive Ground Input,
Product Name
Eaton motor relay
Catalog Number
EMR-4000-2A1DB1
UPC
786679147115
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
Sensitive Ground Input IRIG-B URTD Interface
PROFIBUS-DP
over fiber optic ST
Sensing inputs
Power Protection and Metering Voltage Protection and Metering Current 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-4000-2A1DB1
The EMR-4000-2A1DB1 motor relay delivers a broad voltage range (19-300 Vdc, 40-250 Vac) with 5A/1A phase current, reducing the need for multiple adapters and simplifying installation in mixed-mSystem environments. This feature directly improves system reliability and lowers total cost of ownership by minimizing cabling complexity and enabling consistent protection across drive families; ideal for automated packaging and manufacturing lines where uptime is critical. The I/O footprint includes 8 digital inputs, 5 digital outputs, and 4 analog outputs, enabling richer monitoring and control without external modules, which translates to faster fault isolation and tighter control loops in motor control panels. Over fiber optic ST communication for PROFIBUS-DP provides galvanic isolation and noise immunity, boosting control network integrity in noisy industrial plants. Conformal coated circuit boards protect electronics in challenging environments, extending service life and reducing maintenance cycles.
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FAQs
EMR-4000-2A1DB1 supports PROFIBUS-DP over fiber optic ST for isolated, high-reliability networking. It also offers I/O options like Sensitive Ground Input, IRIG-B and URTD Interface to support synchronization and safe integration. For programming and optimization, PowerPort-E is commonly used in the Eaton ecosystem to streamline setup and commissioning.
The device handles 5A and 1A phase currents, supports a voltage range of 19-300 Vdc and 40-250 Vac, and provides 8 digital inputs, 5 digital outputs, and 4 analog outputs. These specs enable comprehensive motor protection, metering, and control within a single relay, reducing external components and wiring complexity.
Yes, the EMR-4000-2A1DB1 includes Zone Selective Interlocking (ZSI) capability (1), which helps coordinate protective actions across feeders, minimize fault energy, and improve selectivity. This is particularly beneficial in larger motor control centers and critical drive systems where precise fault isolation matters.
Warranty terms follow Eaton Selling Policy 25-000, offering one year from installation or eighteen months from shipment, whichever occurs first. This coverage supports repair or replacement under normal operating conditions, helping protect equipment investments in continuous production environments.
The unit has substantial footprint with dimensions of 8.06 in (L) x 8.7 in (H) x 9.72 in (W) and weighs about 9.259 lb, offering a robust chassis for motor control panels. Its conformal coating and fiber-optic communication ease installation in dusty or humid environments, while the built-in metering and protection features simplify wiring and reduce panel depth requirements.