Roller shutter doors motor Features and characteristics 1. Aluminum precision die casting box, new fashionable design, good heat dissipation; 2. Compact structure, stable performance; 3. Big starting torque, and can adapt to forward and reverse frequently; 4. Embedded thermal protection device, extend life of gate opener; 5. Good performance, can release self-locking manually to open or close gate; 6.Work in -35 °C low temperature environment; Technical parameters Power: AC220V/50Hz Rated input power: 300W Working temperature: -35 °C +55 °C Insulation Class: B Class Output revolutions : 43.75rpm Output torque: 28N.m