FANTECH says electronic commutation motor technology is integrated into its PowerLine EC series and the Gamma EC and GL Gamma series of fans.
According to the company, the energy efficient technology uses electronics to periodically reverse the current direction between the rotor and the external circuit. This allows a DC motor to be plugged into a standard 240V supply.
The electronics control the ramp up speed, keeping the in-rush current to a minimum, so the fans never draw more than the rated full load amps.
The manufacturer claims the fans have reduced noise and power savings due to the combination of efficient DC motors and on-board speed controls.
The motor responds to 4 to 20mA or 0 to 10V signals, allowing it to be factory programmed to work with a range of sensors, which can send signals to speed up or slow down the fan according to requirements.