E300 Electronic Overload Relays

Bulletin 193/592 E300™ Electronic Overload Relays offer a flexible design, simplified wiring, and seamless Logix integration. Real-time diagnostics are transformed into actionable information which maximizes your up-time and protects your assets.

Bulletin 193 and 592 E300 Electronic Overload Relays
  • Overview
  • What's New
  • Product Selection
  • Specifications
  • Documentation
  • Resources


  • Includes intelligent motor control (EtherNet/IP and DeviceNet enabled)
  • Offers a scalable solution
  • Provides diagnostic information
  • Includes integrated I/O (additional expansion I/O available)
  • Provides adjustable trip class 5…30
  • Offers wide current range
  • Includes Test/Reset button
  • Offers programmable trip and warning settings
  • Includes true RMS current/voltage sensing (50/60 Hz)
  • Provides protection for single- and three-phase motors
  • Offers the ability to customize the E300™ Overload Relay by selecting one each of the following modules: 
    • 193-ECM E300 Communication Module
    • 193-EIO E300 Control Module
    • 193-ESM or 592-ESM E300 Sensing Module

Additional Information

E300 Relay Product Enhancements for Your Intelligent Motor Control Application

Our E300 relays offer simultaneous real-time control, configuration, and data acquisition for your intelligent motor control application. The E300 has added some product enhancements to continue to provide top-tier motor overload protection.

Series B Control Module (replaces Series A)

  • Reduced I/O count module offering (2 inputs / 2 outputs)
  • Parameter back-up/restore functionality via the embedded web server
  • SIL 2 capable - IEC 61508:2010 Parts 1-7 (does not apply to Series A)

DeviceNet Communication Module

  • Migration path for older E3/E3+ products
  • Interface supported in RSNetWorx for DeviceNet (supports ADR)
  • E3/E3+ emulation mode for simplified interface experience

Sensing Module for New 100-E Contactor Mounting

  • 20...200 A

Bulletin 193 Current Transformer (CT) Kits

  • Consists of either UL or CE compliant type CTs
  • UL - 300 A and 600 A
  • CE - 300 A and 400 A

To view commonly ordered and quickly available products, use the Product Configuration Assistant for our complete product offerings.


  • CE Marked
  • RCM (formerly C-tick)
  • cULus Listed — File No. E14840; Guide Nos. NKCR, NKCR7
  • Suitable for use with IE3 Motors (IEC 60034-30)
  • SIL 2 Capable - IEC 61508:2010 Parts 1-7 (with Series B Control Module Only)
  • ABS
  • CCC
  • KCC
  • Environmental Protection Use Period 25 (China RoHS)

Standards Compliance

  • CSA C22.2, No. 60947-4-1
  • EN 60947-4-1
  • UL 60947-4-1
  • GB/T 14048.4-2010
  • IEC 61508
  • IEC 61511
  • SJ/T 11364, GB/T 26572, SJ/Z 11388

Product Certifications

Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.

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Product Certifications

Certifications apply when product is marked. See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Configuration & Selection Tools

Other Resources

  • Add-on Profile Integration Tool — Use this E300 integration tool for RSLogix™ 5000 and Studio 5000™ software integration.
  • FactoryTalk EnergyMetrix Software — Use FactoryTalk® EnergyMetrix™ software to monitor, analyze, manage, print, and save power monitor data with your E300 Plus Electronic Overload Relay.
  • Firmware — Visit our online resource to find the latest firmware for the E300.
  • Procurement Specifications — Visit our online resource to find the procurement specifications for this product.
  • Knowledgebase — Visit our online resource for technical information, support chat and forums, software updates, and product safety advisories/notices.