The invention relates to an electrical connection device for making a connection between a first seat and a second seat disposed in front of or behind the first seat, in particular in aircraft, wherein the device comprises: a casing secured to the first seat and receiving an inlet cable bundle and an outlet cable bundle; a cable inlet connector connected to the inlet cable bundle and secured to the casing; and a retractable strip received at least in part inside the casing, the outlet cable bundle, extending in said strip, which strip is capable of sliding outwards from the casing in such a manner as to connect said casing to the cable inlet connector of the second seat.