R58-series Acshaded pole motor Application: exhaust fan/fan-heater;specially for low temperature home appliance Voltage &Frequentcy :100~240V & 50~60Hz Abiment Temperature ú¦-15~60íµ Insulation class:A/E/B Model/codeStator dimension(mm)Rotor dimension(mm)Max torque(g.cm)Max input/output power R58-1010.536.58015/2 R58-1212.538.512020/3 R58-1616.518028/4.5 R58-2020.546.525040/6.3 R58-2525.551.532053/8 R58-3030.556.540065/10.5 R58-3535.561.548075/12.5. 36 or48pcs put in one carton with the foam pre /per set parking in a plastic bag.