An insulation-displacement connector including two cutting and connecting blades, each one provided with a section for inserting and centering of a cable, a cutting edge which extends from the section for centering and insertion, a base, and an arm for joining each blade to the base; where the cutting edges are inclined along the entire extension of the edges such that they cross one another, and where the cutting and connecting blades are not joined together at an end of the blades opposite to the joining end of the sections, but rather are joined to the arms such that the blades may be separated from one another according to a transverse direction.