... -proof with rotary fieald type,IP23,Insulation Class:B or F,adopting harmonic excitation system,safe and reliable using,easy operation ... )Relative air humidity: not exceed 90%TECHNICAL DATA:MODEL: STC-7.5OutputKVA9.4KW7.5Voltage (V)400/230Curernt (A)13.5Power factor ... .8Speed (r/min)1500Freq. (Hz)50Pole Number4PRODUCT'S PICTURE: STC-7.5 AC Motor