Loading

PowerFlex SCR Bridge Bus Supply

Bulletin 20S SCR Bridge is a non-regenerative DC bus supply that supplies power to AC drives that have a common DC bus input. The supply converts incoming three-phase AC line voltage to a common DC bus voltage. You can configure this supply for stand-alone and master-slave applications.

Popular Resources/Quicklinks
PowerFlex SCR Bus Supply User Manual AC Drives Common Bus Configurations Application Guidelines

Overview

  • Six-pulse, full-wave, three-phase SCR bridge rectifier unit
  • Stand-alone and master-slave configurations (1000 A units only)
  • Built-in AC line and DC bus fuses (400 A and 600 A units)
  • Rectifier branch fuses, snubber circuit, and DC bus feedback fuses (1000 A units)
  • Over-temperature sensor located in the heat sink
  • RC snubber circuit for dampening and linearity of over-voltages

Product Selection


Specifications

Certifications
  • CE marked for all applicable directives
  • cULus
Looking for Additional Information?

To find additional product information including CAD drawing files, 3D models and more use our Product Catalog.


Documentation

Resource Publication Number Language
PowerFlex SCR Bus Supply User Manual 20S-UM001
AC Drives Common Bus Configurations Application Guidelines DRIVES-AT002
Literature LibraryLiterature Library
Literature Library

Browse Literature Library where you can search for additional technical and commercial publications in more languages.

 

Search Literature Library

KnowledgebaseKnowledgebase Support Center
Knowledgebase

Visit our online resource for technical information, support chat and forums, software updates and product safety advisories/notices.

 

Get Support

Applications

Typical applications for the PowerFlex 20S Common Bus Power Supplies include:

  • Paper-Making Machines, Finishing Winders, Calendars, Rereelers
  • Metal-Rolling Mills, Slitters
  • Winders, Coaters, Calendars
  • Cranes

Drives Case Studies — View our case studies site to discover how customers have applied Allen-Bradley drives products in their applications.