ModelRatedvoltage(v)Ratedfrequency(Hz)Ratedspeed(r/min)Ratedcurrent(mA) Ratedpower(w) Pull-intorque(kgf.cm) Startingvoltage(v) TemperatureRise(k) Noise(dB) InsulationClass 50SM25-1120601/30 =30 =3 =14.5 =90 =60 =40 A 50SM25-1220-240601 =30 =3 =5 =180 =60 =40 A 50SM25-124601 =100 =3 =9.7 =18 =60 =40 A