The GE/Fuji Model AF-300 is an industrial type variable frequency drive that is designed specifically to control and adjust the speed of fans operating with 3x230V AC or 3x480V AC power supply. It is used with the large CASV, Chimney Automation Systems as well as all MDVS, Mechanical Dryer Venting Systems, and MCAS, Modulating Combustion Air Systems.

The drive is available in 4 sizes, from 1HP to 5HP. It only requires power and motor connections to the built-in terminal block for use. The VFD is preprogrammed by EXHAUSTO for the specific application it is to be used in. If program changes are necessary, settings can be set and adjusted using the keypad panel. The audible motor noise is minimized due to the wide switching frequency range of the Fuji drive. This makes it ideal for applications where quiet operation is most beneficial.