Technologies

Motor and control technology decides how much energy a fan uses over its life. These pages explain the options and where each one pays back.

EC Fans An EC fan couples a brushless PMSM motor to a built-in inverter, so the fan controls its own speed from a 0-10 V, PWM or Modbus signal. Against a shaded-pole or PSC AC motor, an EC fan typically cuts input power by 30–50 % at the same duty point and holds airflow as static pressure rises.