Product Features 24V DC drive DC brushless motor driven fan blades; Description 1. Rated voltage: DC 24V; Rated Current: 2.5A; speed: 1500 ~ 1700RPM, reserved tone speed interface; 4. cooling mode, the built-in type, using the heat of the motor housing; 5. switch machine; 6 speed control function; 7. overcurrent protection, stall protection, overvoltage protection, undervoltage protection function; widely used to all types of brushless DC fan drive and control;