Device for protection of pedestrians in the event of frontal crash with a motor vehicle

The device has connection unit with a support (204) and a spring assuring fixation of a cap (1) on front portion of an arm handle (202). The handle is electrically controlled between a passive and an active state of protection. The connection unit provokes rotation of the cap relative to handle towards front portion of a vehicle in the active state. The support is rigidly fixed to the cap and articulated on the handle.