ASM-15/17: Ideal for small Roller Shutters. The powerful Short Motor ASM-15/17 has got 17nM at 15 rpm making it the best strength for size motor. The diameter of the motor is a slim 45mm. The economic power usage of the ASM-15/17 is just 135W at 240V and 0.588A. The motor is classed with IP44. Paired with one of our RF20 receivers the motor can easily be converted to a remote controlled unit. The overall length is just 440m!