The current switch will turn on a fan when it senses power going through the device and turns it off when it no longer senses current through the device. The current switch is a dependable method of operating a Duct Booster, Dryer Vent Booster Fan ect. A current switch is completely out of the air stream and dose not clog like a pressure switch can.

Turns on 120 VAC devices when it senses input current.
۰Switch Rating 2.5Amps (Max) 120Volts (Max)
۰Current sense rating: 1.20 - 40Amps (Max)
۰Frequency: 45Hz to 65 Hz
۰Max Ambient Temperature: 140ºF (60ºC)