... )100% original. Garage door opener ( Roller shutter motor ) JM300-1P MODEL NOMax upgrade heightMMax upgrade weightMPower (W)Current Rating ... (N.m) rotation (r/min)CHAIN NO220V 50HZ JM300-1P6.53002503.31686.210AJM500-1P6.55002503.93436.210AJM600-1P6.56003703 ... .94126.210AJM800-1P78003704.56073.410AJM1000-1P710004004.511023.210A380V 50HZ JM300-3P6.53001801.21686.210AJM500-3P6.55002501.33436.210AJM600-3P6 ...