... :2000, CCC, UL,CE, VED.Our mainly product is synchronous motor, stepping motor, copper pipe and heat exchange for air-conditioner, mold.We ... rpmInsulation Resistance≥100MΩRotate DirectionFreeTemperature Rise≤55 KNoise≤35 dB(A)Dielectric Strength1800 V/1s 50TYZ420-L21 micro ac Synchronous Motor