... 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 ... switch strong loading capacity can be operated by hand crank if there is power failure.Widely used to ... and Effectiveness, adopt side-magnetic brake system. ac electric motor