... steel or With Cold-rolled steel plate.Drive mode:DC electronic motor drive,Photoelectric sensorAccess modes:1.Automatic rotate2.Manual rotate3 ... through / ForbiddenInput: Input AC220V(10% more or less),50HZ(4%more or less)Output:AC24V,DC12V,DC5VPower consumptionWorking state:<60 ... when been pushed in the oppsite direction,then self-reset.4.Mechanism is specially processed ,more durable,Ensures rapid, ...