EC motor is a brushless DC permanent magnet synchronous motor with electronic commutation. The driver can be built-in or installed independently. It has a wide range of stepless speed regulation functions. It is widely used in refrigeration equipment, livestock breeding ventilation, cooling water towers, intelligent ventilation, Smart water supply and other industries During the use of the axial flow fan, the required air volume can be obtained by adjusting the rotational speed, especially in the low speed state, it has higher efficiency and lower heat loss, thus reaching or even exceeding the IE4 energy efficiency level. Achieve high-efficiency energy-saving goals and reduce noise requirements; at the same time, compared with AC variable frequency motors, avoiding the risk of motor burning The external control input can realize the speed adjustment of the fan, the motor and the fan blade can be directly connected, and no need for a pulley or gearbox to change the speed The built-in drive can realize 0-10VDC speed adjustment, forward and reverse rotation adjustment, start-stop control, ModBus RS485 remote control, 12VDC power output Optionally use 200-240VAC single-phase power supply or three-phase 360-460VAC three-phase power supply With standard IEC frame: 71, 80, 90, 100, 112, 132