wet and dry motor, three stage. Rated Voltage(v) 120/220/230Rated Frequency(Hz) 50/60Rated Input Power(W) 1000± 8%Rated Current(A) 8.6/4.7/4.35± 8%Max Vacuum Degree(Kpa) 25-5%wholly closedMax AirFlow(m 3 /min) 2.5-5% wholly openedMax Out Power(W) 280-5%Max Suction Effciency(%) 27-5%Spark <2Noise(dB) ≤ 98Temperature Rise(K) ≤75Class Of Insulation AAverage Life (h) 400Speed(RPM) 36000reference value