STD2 144-3U Standard Series 144" length Air Curtain - Air Door 3 @ 1/2 HP -Environmental Separation - Up to 10 ft / Insect Control - Up to 8 ft
STD2144-3UA-OB, STD2144-3UD-OB, STD2144-3UG-OB, STD2144-3UH-OB
99-014 Steel Mechanical Universal Surface Mounted Plunger/Roller Switch (20 amp Single Phase) Control Panel Required >1 HP or 3 Phase Unheated / Direct Compatibility Electric Heated. Not Recommended for High Traffic Doors unless used with Time Delay.
Three Motor Control Panel - used to operate an air curtain with three motors. 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 or magnetic reed switch is used to start the air curtain.