YWF series external rotor motors have two kinds, single phase asynchronous capacitor fan motor and three phase asynchronous capacitor fan motor. The Voltage of single phase motor is 220-240V 50 Hz and three phase motor is 380V 50 Hz. Operating with 200mm to 710mm diameter fan blades. Available with Fan guard. Suitable for condensing units for air-conditioning and refrigeration, evaporators, exhaust fans, air heaters. The insulation class of motor is F and the protection class of that is IP54. All motors have thermal protector in the winding. External rotor motors have passed CE, RoHS and CCC approval.