Abstract: An electromechanical lock with coded keyboard programmable by several users. The lock is unlocked electrically by an eccentric, actuated by an electric motor, which acts on a trigger to unlock the device. The eccentric is a disk mounted eccentrically on a shaft of the electric motor. The rotation of the shaft causes the disk to turn, which, under the action of centrifugal force, strikes the trigger so as to free the bolt. A disk of plastic material is fixed concentrically with the axis of the motor, and a second disk of suitable mass is mounted on the first disk in an eccentric manner with respect to the shaft.