... motor, roller door motor, 300kg,500kg,600kg,800kg,1000kg,1300kg,1500kg,2000kg,2500kg lifting gate weight is optional. Outside motor for roller ... power failure.3.The enwinding group of the motor is with overheat protect equipment. When the ... off the power supply automatically to protect the motor. When the temperatures reduce to 70¡æ, it ... 3.Remote control is optional. outside motor for roller shutter door