Ac axial fan 1) 6 poles 2) speed: 880/660rpm 3) impeller diameter: 800mm 4) airflow: 25, 000/20, 000cbm/h 5) power: 2, 000/1, 250w 6) voltage/frequency: 3~400v/50hz 7) current: 4.0/2.3a 8) insulation class: f 9) for machine cooling, and building and workplace ventilation
