An electrical connector assembly including a first connector with header contact blade (s) and a second connector with receptacle contact blade (s), The connectors are pivotable with respect to each other. The second connector includes a receptacle housing with an entrance for insertion of a header contact blade between a contact surface of the receptacle contact blade and an opposite surface. The entrance allows insertion in an angular range of mating directions within a plane perpendicular to the main pivoting axis. The contact surface of the receptacle contact blade and the opposite surface converge towards the main pivoting axis over said angular range. The receptacle contact blade has a free peripheral portion at the entrance of the receptacle housing, which is resiliently movable with respect to the receptacle housing.