FOR THREE PHASE FAN WITH : 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 blades 2. GOOD HEAT DISSIPATION: The thickened all aluminum case effectively dissipates heat and does not rust, making the machine performance more stable and efficient 3. WIDELY APPLICABLE: Used for the speed regulation of three phase purification fans, central air conditioning shunts, axial fans, ordinary fans, and all three phase fans 4. TECHNICAL PARAMETERS: Rated current for 12A, suitable motor power below 4KW, rated voltage for 380V, possess excellent performance 5. STABLE AND DURABLE: AC motor controller come with stable structure, excellent performance and long service life. Item Type: AC Motor Controller Material: Aluminum alloy Rated Voltage: Three phase AC 380V Input Power: Three phase AC 380V Output Power Supply: Three phase speed regulation power Output Adjustment Method: Manual knob adjustment Rated Current: 12A Application Range: Three phase 380V AC fan speed regulation Suitable Motor Power: Below 4KW Speed Regulation Range: 1/3 motor rated speed to full speed (intermediate stepless speed regulation). 1 x AC Motor Controller. Pay attention to the correct operation. We will reply your message within 48 hours. If you do not receive our reply within 48 hours, pls. Post a message again because sometimes our message system may block some emails. If you are satisfied with our service, pls. Our aim is to provide Level Customer Service, your recognition will encourage us greatly and serve you better. We strive to keep all our customers satisfy. We will do our up most to exceed your expectations in customer service, communication and dispatching of your orders.