E controllers are single stage controllers without phase voltage balancing.
They sense starting motors and support them with high start-up currents.
T offers five and F offers nine stage output voltage balancing.
Voltage balancing is binary coded in several groups of long-life capacitors.
Digital controlled thyristors switch capacitors at zero volt transition moments in the sine wave.
All load motors start fast and ride through momentary overload situations with ease.
E controllers for up to 16 kW.
T controllers for up to 8 kW.
F controllers for 60Hz: 8 - 100 kW.
F controllers for 50Hz: 8 - 120 kW.