Features WS55-180 Motor Driver Controller is a high performance,cost-effective 3 phase BLDC motor controller.Voltage range is from 20VDC to 50VDC The controller can drive the DLDC motor with HALL or without HALL. This controller can be used in small equipment, Electric Power Tools, exhaust Fan, Jade grinding machine, Vibrating motor etc Brushless Spindle External potentiometer control/external voltage control With overvoltage protection, over-current protection, locked-rotor protection Specifications:Rated voltage:20 to 50 VDC Rated current: 10A Current limiting:15AMaximum speed: 20000RPM( the specific speed depends on the motor itself and load)Storage temperature: -20℃~+65℃ Usage environment: Avoid direct contact with dust, fumes and corrosive gases Temperature: 0-45℃ Humidity: < 80%, no frost, frost free Shock: 5.9m/S2 MAX Storage humidity: 0~95%RH Size: 9.5 * 7 * 3.5cm / 3.74 * 2.76 * 1.38inch Weight: 260g Detail:5. Start-stop (two control modes): 1. External switch EN: Transfer through switch. 2. Side toggle switch EN: for the toggle switch, the white part is up and down, then down for the start; for the toggle switch, the white part is horizontal, then dial to start Note: You can only turn one control at the same time, one of the switches is closed, and the other one is valid.6. Locked-rotor protection:If the motor stops working, switch on the power again to start. 7. Power light: Green light: power on and off 8. Status light: Red light: two flashes in standby time, after starting, extinguish. 9. Insulation resistance: >100M at ambient temperature and atmospheric pressure 10. Insulation strength: At normal temperature and pressure, 0.5KV, 1 minutes Wiring diagram: Package included:1 x Motor Driver Controller with cable Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. Package List