... :50HZ/60HZ torque:10NM-59Nm CCC, CE, ROHS, UL AC standard style tubular motor for roller door CCC, CE, ROHS, ULQuiet&Noise ... ,Balanced running.Mechanic Limit+Manual,external motor with four wires Wireless setup the limits by outer emitter ... , Compact, Vogue convenient and Effectiveness, adopt side-magnetic brake system. ac electric motor