Variable Frequency/Adjustable Speed Drives

AutomationDirect.com sells AC variable frequency drives for motor speed control and industrial control applications in single and 3-phase models at varying HP up to 100hp with some models featuring dynamic braking, removable keypad, and PID.

General Automation offers True Genius AC Drives, featuring simple programming with 16-step speed control, PID control, S-curve, AVR function, and motorauto tuning.

Lenze AC Tech makes frequency inverter drives as well as NEMA rated vector drives, enclosed inverter drives, and integrated gearmotor drives.

Baldor makes DC brushless adjustable speed motor control drives with no programming necessary, 200% continuous overload capability up to three seconds, a wide speed range, signal isolation, and reliable Hall sensor feedback.

Danaher Motion makes AC variable frequency drives and adjustable speed drives, fractional to 40 HP, offers 115, 230, 380, 415, and 460 volt inputs, supports multiple motor applications, and are simply installed cost-effective alternatives to DC drives.

Danfoss offers several frequency drives such as the VLT AutomationDrive FC 300 which comes in a range from 1/3 up to 1200HP, has a hot-pluggable local control panel, offers intelligent heat management for proper cooling, and more.

GLC Controls offers AC and DC variable frequency drives including low and medium voltage drives at 240, 480, and 600V, machinery drives from 0.18 to 110kW, standard drives from 0.75 to 355kW, and industrial drives from 0.55 to 5600kW.

Hitachi America offers industrial AC Variable speed drives at less than 500hp, including single and three phase models, and much more.

Intellicon sells single and three phase AC motor drives for PSC, brushed, and AC induction motors from Invertek Drives up to 160kW/215hp.

Power Tech offers variable frequency drives from Yaskawa featuring 1/2 to 500 horsepower as well as a general purpose AC drive from 1/8 to 5HP with low motor noise and high starting torque, and a current overload rating of 150% up to 60 seconds.

Schneider Electric makes variable speed drives that run from 0.25 to 3HP 200/240VAC single phase input as well as 0.25 to 20HP 200/240VAC, 0.5 to 20HP 380/500VAC, and 1 to 20HP 575/600VAC three phase input models.

Sharon Controls India offers AC variable frequency drive/inverters including micro drives and sub-fractional drives with varying out put frequency from 1.0 to 400Hz and adjustable V/f curve.

Yaskawa makes variable frequency drives for industrial, pumping, automation, and other applications, saving operating costs and reducing noise.

Siemens makes variable frequency drives including low voltage AC drives from 0.12 to 4500kW/0.16-6000HP, DC drives operating at 230 to 950VAC/7.5 to 10,728HP/6.3-8MW, and medium voltage AC drives.

Motion Industries distributes a variety of Baldor adjustable speed drives from 1/4 horsepower DC models down tow 1/15 horsepower models as well as the Bsm series adjustable drives for a broad range of applications.