The electric connector comprises a first plug-in or receiving part (2) and a second plug-in or male plug (3) which are electrically connectable by relatively translating the plugging parts (2, 3) along a connection axis (X) and is characterised in that said first plug-in part (2) is provided with first guiding means (16, 26) interacting with the second guiding means of the connection element (43) of the second plug-in part (3) in such a way that the connection element is enabled to be displaceable with respect to the first plug-in part, and said second plug-in part (3) comprises a box (33) provided with third guiding means interacting with said connection element (43) in such a way that the connection element is enabled to be displaceable with respect to the box along the connection axis (X) and elastic means generating the movement of the connection element with respect to the box.