ELECTROMECHANICAL BRAKING ACTUATOR FOR A VEHICLE, PARTICULARLY FOR AT LEAST ONE RAILWAY VEHICLE, AND BRAKING SYSTEM

An electromechanical braking actuator for a vehicle, particularly for a railway vehicle, is described, which comprises a safety unit arranged to receive an electrical position signal, the value of which is indicative of the position of braking force application means along a translation axis; to determine an instantaneous position of braking force application means, based on the value of an electrical position signal; and, through first interruption means, to prevent a braking force control signal emitted by the service braking control unit, or a power supply signal, from reaching the electromechanical module, when: a) the safety unit determines that the braking force application means are in a position between a maintenance position and a rest position; b) the safety unit determines that the braking force application means are moving from the rest position to the maintenance position. A braking system is also described.