JD-300 Automatic rolling door motorJD series of rolling shutter door motors applied to shopping centers, warehouses, garages, theaters, hotels, banks, factories and other buildings, rolling shutter door's opening and closing, with electric and manual function. Roller shutter doors opening and closing operation are power-driven, the up and down stroke was automatic controlled by limit switch. Accurate and reliable positioning, opening and closing security. Equipped with a motor winding overheating protection device, it will automatically cut off power supply when the temperature reaches 110 °,so as to protect the motors from being burned,and the device can start again when the temperature dropped to 70 ° (after about 8min). Features of rolling shutter door motor. 1.good design,advance structure,large starting torque, short-time duty, stable operation; 2.Easy installation, long service life; 3.Low noise, small power consumption, little vibration; 4.Remote control; 5.Limit switch unit enables precise adjustment of door in both up and down positions; 6.Electric and manual operation. Technique parameter MODELRATED POWER(w)LIFTING POWER (kg.f)RATED LOADMAX HEIGHT(m)CHAIN NUMBERNET WELGHToutputtorque(n/m)outputspeed(r/min) 220V 50HzJD-300-1P2503001685.4608B11.8JD-600-1P3706004125.3610A12.8JD-800-1P4608006474.6910A13.8 380v 50HzJD-300-3P1803001685.4610A12.8JD-600-3P2506004125.3610A12.8JD-800-3P3008006474.6910A13.8JD-1000-3P40010008094.4912A13.8JD-1300-3P600130014014.4912A14JD-1500-3P800150016175.2912A14.5