Drives, Softstarters, and Harmonic Filters


We offer a wide range of AC (VFD or Variable Frequency Drives) and DC drives. We also offer Medium Voltage AC toshibamvdrivecropDrives. If you’re looking for a hard-to-find drive, your search is over. For a specific drive brochure or pricing,  just contact us either on-line or via phone, and we’ll email you at once. We also have limited stocks of reconditioned drives. Visit our EBAY store for a current listing.

The Drives Experts

Electronic Motor Drives are EMA’s core business. There was a time when drives were only found in complex industrial machinery, but that has changed. Our drive engineers were doing drives back when, to paraphrase a country song, “drives weren’t cool.”  Motor Drives are now found in almost every conceivable industry and facility type. From oil production platforms to commercial buildings, motor drives offer a reliable, cost effective, and efficient way to control electric motor speed and torque.

We offer a wide range of variable speed motor drives (VFDs), DC Drives, Servos, pump controllers and other specialized controllers. We sell only the highest quality equipment such as Toshiba, Yaskawa, WEG, LTi, Parker SSD, Schneider Power Drives, and others.  We sell both low voltage and medium voltage variable frequency drives. Click HERE for information on Toshiba Medium Voltage Drives.

Anyone these days can sell you a drive in a box, but when you face technical issues with the application, they are nowhere to be found. EMA, on the other hand, provides not only drive equipment, but drive solutions. Service is important. Not every drive is a fit for every application, and making a mistake in this area can cost both downtime and administrative headaches. With EMA, and our highly rated service, you avoid that.

We offer equipment from the following quality manufacturers and more:

Click for Online Catalog

Call or contact us on-line today, and we’ll help you find exactly the drive you need.

Download Toshiba Drive Brochure (PDF)  (large file)

Download Toshiba T300MV Medium Voltage Drive Brochure Here (PDF)

Download Toshiba Outdoor NEMA 3R Medium Voltage (MTX) Drive Brochure Here (PDF)

Download WEG Drives and Automation Brochure HERE (PDF)

Download Yaskawa E7 Drive Brochure HERE (PDF)

Download Yaskawa IqPump Controller Brochure HERE (PDF)

Soft Starters

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Soft starters are static starters that accelerate, decelerate, and protect three-phase induction motors. The motor torque produced is limited to the load requirements so that the starting current is as low as possible.

This has many benefits. It reduces inrush current and lowers demand charges, protects motors and reduces mechanical wear and tear, and in pump applications, stops the water hammer. In many cases, soft starters cost the same as standard contactors. Call us today to discuss whether soft starters would be a good fit for you.  EMA offers WEG softstarters.   To download the softstarter price book, click here.  Click the image for an online catalog.

Harmonic Filters

EMA sells TCI  Active and Passive Harmonic Filters.  Harmonics are an increasing concern for facilities interested in power quality.  Drives and other non-linear loads produce harmonics at odd multiples of the line frequency, whichTCI ACTIVE HARMONIC FILTER can cause transient noise issues on sensitive equipment,  damage to transformers, excessive heat,  nuisance fuse blowing, circuit breaker tripping, and wasted energy.  Passive filters are essentially tuned traps that absorb the damaging harmonics, while active filters actually provide corrective current to eliminate harmonics.    Active filters also work to correct power factor problems caused by reactive currents.  Harmonic currents are useless and damaging currents, unlike the useful currents which power your equipment and light your facility.   Harmonic Filters are a reliable, easy to install, and effective way to clean up your power.

Download the Manual for the TCI Active Harmonic Filter (PDF)

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