Insulation-piercing connector

A cable connector assembly, comprising:

• a pair of sub-assemblies including a first sub-assembly and a second sub-assembly movable in translation relative to each other along a clamping direction, each of the sub-assemblies is rotatable relative to a pivot axis extending perpendicular to the clamping direction, each of the sub-assemblies has a main housing and a clamping part at least partially housed within the main housing, the clamping part is movable in translation relative to the main housing along the clamping direction;
• and
• a tightening device having a screw longitudinally extending along a central axis of the cable connector assembly and tightening the sub-assemblies along the clamping direction with a first clamping region formed between the sub-assemblies that receives and clamps a first cable, a secondary clamping region is formed in each of the sub-assemblies between the clamping part and the main housing that receives and clamps a secondary cable, each of the clamping parts has a housing with an anti-rotation device preventing a rotation around a central axis of the screw, the housings of the clamping parts have complementary non-circular ducts translating one into the other and dimensioned to receive the screw and prevent rotation by interference fit.