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Automation Fair

Spend some time with us at Automation Fair! Stop by and hear about our newest products!


Same Day Shipment

Get our most requested products with our quickest turnaround time.


Narrow Active Filter

In a tight spot? We have a sleek new design for our 200A active harmonic filter that will fit in narrow spaces.


PF Guard Capacitor Bank

Achieve near unity power factor with the help of TCI’s PF Guard


HarmonicGuard Solution Center

The HarmonicGuard Solution Center features a dynamic analysis tool that uses your basic system data to generate accurate harmonic and power quality analysis for your unique application.


MotorShield Sinewave Filter

High performance Motor Protection Output Filter eliminates harmful dv/dt to result in a sinewave output.



Steve Bright accepts position as VP of Sales & Marketing.

Al Dipierno accepts position as VP of Strategic Sales

TCI is excited to announce the promotions of both Steve Bright and Al DiPierno.


Need products quickly? We can help with our same day shipping program!

Welcome New Marketing Communications Manager

TCI welcomes Theresa Hietpas as the new Marketing Communications Manager.

New Active Filter Offerings

We have a sleek design for our 200A active harmonic filter that will fit in narrow spaces.

HarmonicShield is TCI's newest addition to our passive harmonic filter line

Giving our customers the performance they have come to expect from our industry leading products in a maintenance free, high value package.

HarmonicGuard Active Filters now available in 250 and 500 amp ratings

TCI offers the LARGEST and WIDEST range of active filters in the market today!

Harmonic Distortion in Data Centers

TCI releases Technical paper on Harmonic Distortion in Data Centers.


Harmonic Applications

High Frequency Noise Applications

Motor Protection Applications

TCI, LLC is the premier supplier of peripherals for AC and DC drives and a respected partner of drive manufacturers and distributors worldwide.  Our products include capacitor banksactive harmonic filters, passive harmonic filters, motor protection filters, line reactors, and other high quality products that increase the value and improve the overall system performance of power inverters.

Copyright© 2017 TCI, LLC     Tel. (414) 357-4540     Fax. (414) 357-4484     W132 N10611 Grant Drive, Germantown, WI 53022
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