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Leeson AC VFD Drive Motors - Variable Frequency Drive Motor Replacements

Buy Leeson Variable Speed Drives for a quality product that is built to last for any industrial or commercial application, from HVAC to construction to manufacturing. Whether you are adding a drive to a pump, conveyor, or crane, Leeson Speedmaster motor controls provide an excellent range of features including:

  • Single phase and three phase input drives
  • Enclosures include open IP20 for drives that are installed in cabinets or clean rooms; or more protected NEMA 1 IP31, NEMA 4/12 IP54 and IP65, and NEMA 4X enclosures
  • Washdown drives with white food-safe epoxy finish or stainless steel cases
  • Pre-programmed parameters for fast and easy installation and set up
  • Compact inverters easily fit in cabinets and tight spaces
  • Remote keypads and braking kits for select units


When installing an adjustable speed drive, maintain adequate spacing around each unit for air flow. The motor should be located as close to the VFD as possible (100 feet or less). For applications where the motor is more than 100 feet away from the drive, a load reactor or dV/dt filter should be installed. As motor lead length increases, voltage spikes generated by the VFD’s output transistors become amplified, and may result in motor failure. Adding an output reactor or dV/dt filter reduces the spikes.

Square One Electric has access to Leeson warehouses across the US, so your orders get shipped and delivered to your door fast! Please contact us if you have any questions.

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  1. 174429.00 Leeson SM Plus AC Drive 15HP

    174429.00 Leeson Speedmaster Plus AC Drive 15HP 200-240V 42Amp 3Ph

    Leeson 174429.00 micro variable frequency drive is designed for big performance in an ultra-compact design. Learn More

    Regular Price:

    $3,180.00

    Special Price:

    $1,526.40

  2. 174430.00 Leeson Sub-Micro VFD

    174430.00 Leeson Speedmaster Sub-Micro VFD 20HP 200-240V 54Amp 3 Phase

    Leeson 174430 sub-micro variable frequency drive has big features, including easy programming functions, seven preset speeds, and automatic restart. Learn More

    Regular Price:

    $3,901.00

    Special Price:

    $1,872.48

  3. 174431.00 Leeson SM Plus VFD 15HP

    174431.00 Leeson SM Plus VFD 15HP 400-480V 21Amp 3Phase

    Leeson Speedmaster Drive 174431 is a three phase sub-micro motor speed control with user-friendly features. Learn More

    Regular Price:

    $3,118.00

    Special Price:

    $1,496.64

  4. 174432.00 Leeson SM Plus VFD 20hp

    174432.00 Leeson SM Plus VFD 20HP 400-480V 27Amp 3Phase

    Leeson 174432 Speedmaster sub-micro drive is a three phase sub-micro motor speed control with user-friendly features. Learn More

    Regular Price:

    $3,819.00

    Special Price:

    $1,833.12

  5. 174433.00 Leeson SM Plus Sub-Micro VFD 25HP

    174433.00 Leeson SM Plus Sub-Micro VFD 25HP 400-480V 34Amp 3Ph

    Leeson 174433 Speedmaster Sub-Micro drive is a three phase sub-micro motor speed control with user-friendly features. Learn More

    Regular Price:

    $4,545.00

    Special Price:

    $2,181.60

  6. 174434.00 Leeson SM Sub-Micro Drive 15HP

    174434.00 Leeson SM Sub-Micro Drive 15HP 480-590V 19Amp 3 Phase

    Leeson 174434 Speedmaster VFD drive is a three phase sub-micro motor speed control with user-friendly features. Learn More

    Regular Price:

    $3,440.00

    Special Price:

    $1,651.20

  7. 174435.00 Leeson SM Plus Sub-Micro VFD 20HP

    174435.00 Leeson SM Plus Sub-Micro VFD 20HP 480-590V 24Amp 3Phase

    Leeson 174435 sub-micro variable frequency drive has big features, including LED display; password protection; and 18 isolated I/O terminals. Learn More

    Regular Price:

    $4,206.00

    Special Price:

    $2,018.88

  8. 174436.00 Leeson SM Plus VFD Drive 25HP

    174436.00 Leeson SM Plus VFD Drive 25HP 480-590V 27Amp 3Phase

    Leeson 174436 sub-micro variable frequency drive has big features, including LED display; password protection; and 18 isolated I/O terminals. Learn More

    Regular Price:

    $4,976.00

    Special Price:

    $2,388.48

  9. 174438.00 Leeson SM Plus Drive 7.5HP

    174438.00 Leeson SM Plus Drive 7.5HP 200-240V 22Amp 3Phase

    Leeson SM Plus Sub-Micro AC Inverter Drive 174438 is designed for big performance from an ultra-compact design. Learn More

    Regular Price:

    $2,057.00

    Special Price:

    $987.36

  10. 174439.00 Leeson SM Plus Drive 10HP

    174439.00 Leeson SM Plus Drive 10HP 200-240V 28Amp Three phase

    Leeson 174439 AC inverter drive is a three phase sub-micro motor speed control with user-friendly features. Learn More

    Regular Price:

    $2,456.00

    Special Price:

    $1,178.88

Items 1 to 10 of 227 total

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