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AC Tech Lenze Logo

Best known for: Innovative and competitive variable frequency drives
Our favorite product: Lenze AC Tech SMVector Drives which are made right in Uxbridge, MA!
Fun fact: We are a Million Dollar Club distributor for Lenze Americas
Newest product release: Lenze i500 Inverters
Warranty: All Lenze AC Tech drives have a 2 year warranty

SMVector (ESV) Series

Our Lenze AC Tech SMVector series is a customer favorite that is also often recommended by our tech department.

This series is available in 3 models; NEMA 1, NEMA 4X Indoor Only (also available with integrated disconnect) or NEMA 4X Indoor/Outdoor:

  • SMVector Nema 1 AC Drive
  • SMVector Nema 4 AC Drive
  • SMVector Nema 4 Outdoor AC Drive
  • Available from ½ to 60 hp
  • Modes of operation:
    • V/Hz (constant and variable)
    • Enhanced V/Hz (constant and variable)
    • Vector speed control
    • Vector Torque control
  • Dynamic torque response
  • Auto-tuning (motor calibration)
  • Low speed operation
  • Part number suffix: B (NEMA 1), C or D (NEMA 4X, Indoor), E or F (NEMA 4X, Indoor/Outdoor)
  • The only difference between the NEMA 4X indoor and the NEMA 4X indoor/outdoor is that the plastic is UV protected in the outdoor duty models.

i500 Series

The i500 series can be tailored to virtually any machine application and is broken out into 2 models, the i510 and the i550. Learn more about this series now.

  • Lenze Ac Drives i510
  • Lenze Ac Drives i550

The Lenze i500 series, released in 2006, is:
  • i510 drives available from .33 to 3hp
  • i550 drives available from .33 to 60hp
  • Scalable
  • Zero clearance mounting (no derating)
  • You can learn All About the i500 Series here.


MC (M1000/M3000) Series
  • AC Tech M1000 Drive
  • AC Tech M3000 Drive

The MC1000 (M1) has a keypad with a forward/reverse key and software geared towards general industrial applications and is available from ¼ to 150 hp.

The MC3000 (M3) has a keypad with a local/remote key and software geared toward HVAC and other process control type applications. This series is available from ½ to 100 hp.

Legacy Series

Two of our longest running series from AC Tech, the SM/SCM and SF/SCF, are being phased out with an expected 2019 discontinuation. We plan to continue to stock popular models through that time, however, we also have a few replacement options for you. Check out our blog with recommendations

AC Tech AC Drives SCF Series
  • Available from ¼ to 75 hp
  • Does not feature SLV (sensorless vector mode)
  • IP20 with power terminals on top, motor terminals on bottom
  • Either 2-wire or 3-wire start/stop without programming
  • Released in the early 2000’s, this series is being phased out with an expected discontinuation in 2019.

The SM/SCM Series has been a top seller for more than 15 years!

  • Available from 1/3 to 15 hp
  • General purpose V/Hz drive
  • Does not feature SLV (sensorless vector mode)
  • Released in the early 2000’s, this series is being phased out with an expected discontinuation in 2019.

  • Another long running, and popular, series is the MCH series
  • The final date for ordering MCH drives is April 30, 2017
  • First released in 1999, declining demand and difficulty sourcing components led to discontinuation
  • This series was rated for variable torque applications, usually centrifugal fans, blowers and pumps
  • Please contact our tech department to discuss your application and get a recommendation on a replacement

Lenze AC Tech
Lenze Americas (formerly known as AC Tech) is located in Uxbridge, Massachusetts with an assembly and distribution center in Glendale Heights, Illinois. Lenze SE corporate headquarters are located in Hamelin, Germany.
Most Popular Series
SMVector Nema 1 AC Drive

Last price increase: May 2015    Series specific increase: May 1, 2016 (SCF/SCM and MCH, M1000/M3000) series

Contact Uscontrol
  • Phone: 847-658-8130
  • Fax: 847-658-0960

Marshall Wolf Automation, Inc.
923 South Main Street
Algonquin, IL 60102

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