Why disturb perfection ?

 PWM (Pulse Width Modulated AC ) is an artificial waveform

    Created by DC to AC conversion via the transistor inverter

    Heat related issues both in drive and other equipment

    Represent a variety of disturbance issues - including:

              Common mode noise     

              Bearing currents

              Hidden failures, also on other equipment on the same grid

PWM is a complex technology, challenging installation, higher failure rate, will never be noise free

 STADT LEAN PROPULSION® is based on perfect sinusoidal waveform

    No noise - The STEALTH solution

    No disturbance

    No additional heat

    Perfect source  for AC motors

Simplicity, eased installation, reliability, efficiency