Feature:1. FOR THREE PHASE FAN WITH BLADE: This governor is a power regulation method, which is only suitable for three phase AC fans with fan blades, and not applicable to other types of loads without fan blades2. GOOD HEAT DISSIPATION: The thickened all aluminum case effectively dissipates heat and does not rust, making the machine performance more stable and efficient3. WIDELY APPLICABLE: Used for the speed regulation of three phase purification fans, central air conditioning shunts, axial fans, ordinary fans, and all three phase fans4. TECHNICAL PARAMETERS: Rated current for 12A, suitable motor power below 4KW, rated voltage for 380V, possess excellent performance5. STABLE AND DURABLE: AC motor controller come with stable structure, excellent performance and long service lifeSpecification:Item Type: AC Motor ControllerMaterial: Aluminum alloyRated Voltage: Three phase AC 380VInput Power: Three phase AC 380VOutput Power Supply: Three phase speed regulation powerOutput Adjustment Method: Manual knob adjustmentRated Current: 12AApplication Range: Three phase 380V AC fan speed regulationSuitable Motor Power: Below 4KWSpeed Regulation Range: 1 or 3 motor rated speed to full speed (intermediate stepless speed regulation).Package List:1 x AC Motor ControllerNote:Pay attention to the correct operation.