An electrical connector comprises a first connector element (2) and a second connector element (4) carrying respective contacts, and interconnected so as to be movable, along a coupling direction, between an uncoupled state and a coupled state. A sliding element (5) is mounted in the first connector element (2) so as to be slidable, in a direction orthogonal to said direction of coupling, between an extended position and a retracted position in the first connector element (2). The sliding element (5) has one or more cam tracks (5T), each engaged by an element (4P) of the second connector element (4) in such a way that a movement of the sliding element (5) from the extended position thereof to the retracted position thereof in said first connector element (2) causes the second connector element (4) to move into the coupled state. Each of said cam follower elements (4P) of the second connector element (4) engages the respective cam track (5T) via a cog (4W) mounted rotatably on said cam follower element (4P).