Specialized manufacturer for Rolling door motor Left or right installation is okdesign controller with different funtions according to customers request.300kgs/500kgs could add reserve power functionoverheat protection:if the motor temperature is over 110 degreed centigrade, the motor stops working automatically, works again if temperature return below 70 degreed centigradeIt can be operated by electricity and manualDurable compact design great elevating power with low noiseCould match infrared sensor or alarm system(optional)Four relays inside the motor,four micro-active switch inside the limit systemFeatures:ModelMotor power (W)Max.lifting force (Kg)Max.hoisting height(M)Max external diameter of door (M)Chain NO.Weight of main engine (Kg)Power supply (V/Hz):220/50FC-300-1P20030060.4210A7.4FC-500-1P30050060.4210A11FC-600-1P30060060.4810A11FC-800-1P40080090.5410A16Power supply (V/Hz):380/50FC-300-3P18030060.4210A7.4FC-500-3P25050060.4210A11FC-600-3P25060060.4810A11FC-800-3P30080090.5410A16FC-1000-3P360100090.5412A16FC-1300-3P600130090.5412A22