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Bulletin 22C PowerFlex 400 Low-Voltage AC Drives

PowerFlex 400 AC Drives

PowerFlex® 400 AC Drives are optimized for control of commercial and industrial fans and pumps. Built-in features such as purge and damper input provide a cost-effective solution for speed control in a broad range of variable torque fan and pump applications. An available packaged PowerFlex 400 Fan and Pump drive provides additional control, power, and enclosure options in standardized designs for a cost-effective solution for speed control in variable torque fan and pump applications.

  • Overview
  • Product Selection
  • Specifications
  • Software
  • Documentation
  • Resources


  • Power ratings:
    • 200…240V: 2.2…37 kW / 3…50 Hp / 12…145 A
    • 380…480V: 2.2…250 kW / 3…350 Hp / 6…460 A
  • Flange-mount and panel-mount options
  • V/Hz control, slip compensation, and PID control
  • Integral RS-485 (Modbus® RTU, Metasys® N2, P1-FLN)
  • Supports Drive Serial Interface (DSI) communication modules
  • Drive overload protection, flying start, purge and damper input, hand/off/auto, and sleep/wake features
  • Packaged drive options include disconnect and contactor bypass packages
  • Available line reactor option
  • Configuration and programming via integral keypad, remote keypad, or software
  • Premier Integration with PowerFlex® AC drives uses the Logix control platform to simplify parameter and tag programming and reduces development time

Packaged HVAC Fan and Pump Drive Options

  • Main input disconnect
  • 3-contactor full bypass with disconnect
  • 3-contactor basic bypass with disconnect

Optional FanMaster™ Energy Saving Package

  • Controls PowerFlex® 400 AC Drive
  • Includes PanelView™ operator interface, sensors and MicroLogix™ 1100 controller
  • Demand ventilation or constant ventilation control
  • Runs at optimal speed using patent-pending algorithms
  • Pre-loaded climate profiles, with easy set up of additional profiles
  • Distributes heating and cooling BTUs in the same proportion as the original system design, using less fan energy
  • Controls ventilation of carbon dioxide
  • Minimizes outside air while providing good air quality
  • Lowers heating and cooling energy consumption
  • NEMA/UL Type 1 and 4 enclosures

Additional Information

  • Premier Integration of the Studio 5000™ Logix Designer application and PowerFlex® drives reduces development time by providing profiles, parameters and standardized tags, as well as copy and paste programming to simplify configuring multiple drives.
  • Our industry expertise in Drives Systems Solutions can help you maximize machine availability and minimize project risk.
  • Intelligent Motor Control Solutions can protect your investment, help optimize productivity and improve uptime.
  • The Integrated Architecture system provides the foundation to drive plantwide optimization efficiently and effectively.
  • Our Connected Components solution provides a design toolkit, programming software, and all the right products bundled together to help you more quickly design and develop machines.


PowerFlex 400 Adjustable Frequency AC Drives for Fan & Pump Applications Technical Data22C-TD001


  • CE
  • C-Tick
  • cUL
  • IEC (Designed to meet)
  • UL
  • UL508C Plenum Rating
  • RoHS

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

Looking for Additional Information?

To find additional product information (CAD drawing files, 3D models, etc.) enter the complete catalog number (including dashes) below.


Learn More

Additional software products are available from Rockwell Software.


PowerFlex Family of Low Voltage AC Drives BrochurePFLEX-BR008
AC Drive Solutions Brochure22C-BR001
FanMaster Energy Saving Package Product ProfileFANM-PP001
PowerFlex DSI Communication Adapters Product Profile22COMM-PP001
PowerFlex 400 AC Drive Product Profile22C-PP001
PowerFlex Low Voltage Selection GuidePFLEX-SG002
PowerFlex 400 AC Drive Technical Data22C-TD001
PowerFlex 400 AC Drives Packages for Fan and Pump Applications Installation Instructions23C-IN001
PowerFlex 400 AC Drive User Manual22C-UM001
PowerFlex 400 AC Drive Quick Start22C-QS001
More PowerFlex 400 publications in Literature LibraryAll Languages

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Product Certifications

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

Configuration & Selection Tools

Other Resources

  • Drives Support — Support resources for all drive products.
  • Fan and Pump Energy Savings Calculators — Achieve an immediate and measurable impact on energy use and operational efficiency.
  • Knowledgebase — Visit our online resource for technical information, support chat and forums, software updates, and product safety advisories/notices.