Patent ID: 7988504

Claim:
Plug connector comprising: an insulating material housing which has at least one contact pin insertion opening on a first housing face for insertion of an electrically conductive contact pin and at least one conductor insertion opening on a second opposite housing face for the insertion of stripped end of an electrical conductor, the conductor insertion opening having an alignment parallel to the conductor insertion opening, wherein a pair comprising a contact pin insertion opening and a conductor insertion opening are each associated with one common conductor connecting area, the conductor insertion opening opens in the conductor connecting area and the contact pin insertion opening has a passage to the conductor connecting area, and said pair having in each case one spring force terminal connection in an associated conductor connecting area with a spring element which has a clamping section that can be moved by spring force transversely with respect to a direction of said pair comprising a contact pin insertion opening and a conductor insertion opening, wherein, when a stripped end of an electrical conductor is inserted into the conductor insertion opening, the stripped end is pushed in the direction of the contact pin insertion opening, wherein the at least one contact pin insertion opening has a width (B 1 ) of the passage over a length in its extent direction, which is aligned from the first housing face to the second housing face, at the least in an area above the clamping section in the direction of the second housing face and under the clamping section in the direction of the first housing face, which width (B 1 ) is less than a width (B 2 ) between the mutually opposite side walls of the conductor connecting area adjacent to the transition to the contact pin insertion opening.