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
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