ST9000 | Power Class – Which Model Do I Need?

Normally, the power class of the inverter should be the same as the motor’s. With heavy-duty starting motors however, it may be necessary to set the power of the frequency inverter higher.

If it is a 1-phase 230V then an ST9000-G1 must be used. If however, it is a 3-phase 400V, a ST9000-G3 must be used.