Axial industrial fan Size: 220*220*60mm Bearing: Ball BearingVoltage: 220-240/50HZ 220-240/60HZ 100-125/50HZ 100-125/60HZCurrent: 0.25-0.46APower: 50.0-60.0WSpeed: 2800-3200RPMAir Flow: 400-450CFMAir Pressure:28.00-36.00mmH2ONoise:61-66dB(A)Weight:1900gFrame and Impeller: UL 94V-0 Lead Wires: UL Type ( + ) : Red ( - ) : Black Operation Temperature: -10oC 70oC 35% 85%RH Storage Temperature: -40oC 80oC 35% 85%RHUp to 50000hrs life expectancy(Ball Bearing)Special Function:Temp Control; Alarm; LED; PWM Control; Auto Start.Anti-corrosive and moisture proof structure, reinforced plastic or customize design.Our DC/AC Fan are available at high performance range, contact us for more details.