Siemens’s Drive Technologies Division developed 1PH8 range of motors has been upgraded with energy-efficient Electronically Commutated (EC) force ventilated fans, which cool the new 1PH8 motors in shaft heights 180 and 225 with upto 310kW outputs.

EC fans, compliant with energy efficiency class IE3, are deployed in the medium to high power range and irrespective of the connected voltage and frequency, is claimed to operate at the optimum point with more than 90% energy efficiency factor reducing energy consumption of the 1PH8 motor.

In comparison with the conventional fans, the EC fans with compact dimensions are less loud, are smoother to operate and are operationally safer due to an integrated electronic overload protection device which allows use of a supply connection without additional protective circuitry.