... voltage of the single phase motor is 120V/60Hz, 220V/50Hz. The voltage of three phases motor is 380V/ ... black plasticBlades: sheet steelRotor: encased in black plastic—Voltage: 220V/50Hz,120V/60Hz,380V/50Hz—Number of blades: 5—Direction ... certificates, high-tech enterprise, research& technology center... UL approval 220V ac electric 200mm axial fan with external rotor motor for commercial refrigerator