Electrical connecting device of an electrical apparatus with a modular connecting comb or similar

The axis of precise rotation and the point of connection of the conductors (8) of the apparatus with the conductors of the connection terminal P, are situated from one same side of the rear face (3) of the apparatus A w.r.t the central support axis. The connection device for electrically connecting a modular electric apparatus A to a connection terminal P, this apparatus A being lodged in a casing (1) in a parallelopiped form having a rear face (3) of fixation to a mounting support and having a rigid conductor (8) situated on this rear face of the apparatus, this apparatus A and this connection terminal P both adapted, at the moment of operation of the connection, to be mounted in rotation one with respect to the other between a position of disconnection and a position of connection of the conductors (8) of the apparatus, with conductors belonging to the connection terminal P.