Combination Micro Switch (20 amp Single phase) is both a plunger/roller all in one. Used for instant on/off control - activates air curtain when door is opened, turns off when door is closed.
One Motor Control Panel - used to operate an air curtain with one motor. All 3 Phase motors or 1 Phase combined motors greater that 1 HP or greater than 20 amps require a motor control panel whenever a door micro switch is used to start the air curtain.
Air Door Distributor
