The invention relates to an insulation-displacement connector (1) which comprises: two blades (2, 3) for cutting and connection, which are each provided with a section (21, 31) for centring and inserting a cable (W); a cutting edge (22, 32) that extends the section (21, 31) for centring and inserting; a base (4); and an arm (5, 6) for joining each blade (2, 3) to the base (4), wherein the cuttingedges (22, 32) are inclined along the entire extension of the edges (22, 32) such that same cross, and wherein the blades (2, 3) for cutting and connection are not joined together at an end of the blades (2, 3) opposite the end for joining to the sections (21, 31) but are joined at the arms (5, 6) such that the blades (2, 3) can be separated from one another in a transverse direction Y.