Abstract: A branch connector for an underground cable enabling a main cable to be electrically connected to at least one branch cable, each being constituted by a metal core surrounded by an insulating sheath, and comprising a lower body (10) and an upper body (12) disposed facing each other and movable towards each other by clamping, each body including a contact element (16, 18; 50) which is made, at least in part, of metal and which is situated in a plane extending transversely relative to an axial direction of the cables and penetrating both through the insulation of the main cable and through the insulation of the branch cable to make contact with the cores of said cables when the upper and lower bodies are moved towards each other by at least one clamping means (14), and a movable non-conductive separator member (70) situated in the midplane of the connector and designed to enable two branch cables to be assembled without coming into contact with each other.