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SMC-50 Solid-State Soft Starters

Bulletin 150 SMC-50 Solid-State Soft Starters

SMC™-50 Solid-state Smart Motor Controllers are available in three frame sizes and range from 180...520 A. This micro-processor based, fully solid-state soft motor starter helps maximize efficiency for motor starts and stops. The SMC-50 motor starter offers many advanced monitoring and protection features to help keep your application running smoothly and ease troubleshooting during downtime. These soft starters are available as part of the Enclosed SMC product family.

New Dual-Port EtherNet/IP™ Adapter Expands Capabilities of PowerFlex® Drives and Smart Motor Controllers

The Bulletin 20-COMM-ER Dual-Port EtherNet/IP™ adapter provides an internal network connection for PowerFlex® 70, 700, 700H, 700S and 7000 AC drives; for PowerFlex DC drives; and for SMC™ Flex and SMC-50 Smart Motor Controllers. The adapter is field-installable and provides a convenient way to control, configure, and collect data over an EtherNet/IP network. The communication adapter supports linear, star, and ring topologies, as well as Device Level Ring (DLR) functionality.

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Dual-Port EtherNet/IP Adapter


  • Rated voltage: 200…690V AC
  • Ranges: Frame B: 90…180 A; Frame C: 210...320 A; Frame D: 361...520 A
  • Nine standard start modes
  • Three expansion ports to install option modules
  • Built-in electronic motor overload protection
  • Current and voltage sensing on each phase
  • DPI communication (standard)
  • Modified Standards program offers quick lead time for Enclosed SMC products


  • SMC™-50 Solid-state Smart Motor Controller
  • Enclosed SMC-50 Soft Starter


  • cULus Listed (Open Type); CE Marked per EMC Directive and Low Voltage Directive

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

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Use Connected Components Workbench software with Microsoft Visual Studio® technology to program your SMC™-50 Soft Starter products.

Frequently Viewed Publications

Smart Motor Controllers Soft Starters Family Brochure150-BR144
Enclosed Smart Motor Controllers Product Profile150-PP007
Global Short Circuit Current Ratings Product ProfileSCCR-PP003
SMC-50 Solid-state Smart Motor Controller Selection Guide150-SG010
SMC-50 Solid-state Smart Motor Controller User Manual150-UM011
More Soft Starter publications in Literature LibraryAll Languages

Product Catalog

Find catalog numbers, certifications, and specifications.


See our Product Certification site for Declarations of Conformity, certificates and other certification details.

Can’t Find What You Need?

Browse our Literature Library where you can search for additional publications in more languages. You can also use the Advanced Search feature to search by catalog number, publication type, title, or keywords to narrow your results.

Build This Catalog Number

Build or verify a catalog number, and get information and CAD drawings for these products.

Configuration & Selection Tools

  • CrossWorks — Convert competitive catalog numbers to similar Allen-Bradley® products.
  • eCADWorks — Select product 3D-CAD drawings in AutoCAD®. 
  • MCS Star — Configure a Modular Motor Control System.
  • ProposalWorks — Build complete quotes and proposals.

Firmware Updates

The SMC™-50 products have firmware which is flash upgradeable. Once you have installed the ControlFLASH™ kit, you can use several different methods to flash the firmware.

SMC Soft Starter Selection Tools

  • SMC Thermal Wizard — Conduct simple thermal analysis and selection of an SMC product for a given application.
  • SMC Estimation Wizard — Obtain a more advanced analysis of both the device and the system.

Other Resources

  • Flash Update — Flash memory updates for smart motor controllers.
  • HyperTerminal Instructions — Instructions for firmware updates using HyperTerminal.
  • 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.



We offer a variety of accessories for your SMC™-50 Solid-state Smart Motor Controllers, including:

  • Converter modules
  • Option modules
  • Human interface modules (HIM) and communication modules
  • Terminal covers
  • Terminal lug kits

View all SMC-50 Solid-state Smart Motor Controller accessories