Item Type: Speed Controller_x000D_Material: Aluminum Alloy_x000D_Rated Voltage: 3 phase AC 380V_x000D_Input Power: 3 phase AC 380V_x000D_Output Power Supply: 3 phase speed regulation power_x000D_Output Adjustment Method: Manual knob adjustment_x000D_Rated Current: 6A_x000D_Application Range: 3 phase 380V AC fan speed regulation_x000D_Suitable Motor Power: Below 2.2KW_x000D_Speed Regulation Range: 1/3 motor rated speed to full speed (intermediate stepless speed regulation) 1Simple Wiring: When wiring, the input terminal is connected to 3 phase 380V, and the output terminal is connected to a 3 phase fan. If the fan is reversed, please exchange the 2 wires at the output terminal. 2Aluminum Alloy Material: The aluminum alloy casing of the governor provides it with good oxidation resistance and wear resistance, which improves the service life of the governor. 3Adjustable: The output of the governor can be adjusted manually, and the user can adjust it according to his own work needs, just turn the knob to adjust. 4Safety: This governor is made of high quality circuit boards, which are not easy to be damaged, and will not cause circuit safety hazards. You can use it with confidence. 5Wide Range of Uses: The governor can be used for the speed regulation of 3 phase purification fans, central air conditioning splitters, axial fans, and ordinary fans.1 x Speed ControllerPay attention to correct operation