Abstract: The invention relates to a plug connector, in particular a direct plug connector, for contacting contact openings of a circuit board, the plug connector including a contact carrier which can include coding devices, in particular coding pins and a polarity reversal safety, in particular configured as polarity protrusions; conductor insertion channels formed by the contact carrier and configured to receive connection conductors, and contact recesses configured to receive plug contacts; a primary safety that supports the contact carrier at the circuit board and that is in particular configured as interlocking elements, characterized in that, the contact carrier is provided with a secondary safety which fixes the contact carrier at the circuit board in addition to the primary safety and which is operable independently from the primary safety.

Abstract: The invention relates to a plug connector, in particular a direct plug connector, for contacting contact openings of a circuit board, the plug connector including a contact carrier which can include coding devices, in particular coding pins and a polarity reversal safety, in particular configured as polarity protrusions; conductor insertion channels formed by the contact carrier and configured to receive connection conductors, and contact recesses configured to receive plug contacts; a primary safety that supports the contact carrier at the circuit board and that is in particular configured as interlocking elements, characterized in that the primary safety includes at least two interlocking arms that are arranged in pairs adjacent to each other wherein interlocking devices of the interlocking arms have different interlocking geometries.

Abstract: The invention relates to a plug connector, in particular a direct plug connector, for contacting contact openings of a circuit board, the plug connector including a contact carrier which can include coding devices, in particular coding pins and a polarity reversal safety, in particular configured as polarity protrusions; conductor insertion channels formed by the contact carrier and configured to receive connection conductors, and contact recesses configured to receive plug contacts; a primary safety that supports the contact carrier at the circuit board and that is in particular configured as interlocking elements, characterized in that, the contact carrier is provided with a secondary safety which fixes the contact carrier at the circuit board in addition to the primary safety and which is operable independently from the primary safety.

Abstract: The invention relates to a plug connector, in particular a direct plug connector, for contacting contact openings of a circuit board, the plug connector including a contact carrier which can include coding devices, in particular coding pins and a polarity reversal safety, in particular configured as polarity protrusions; conductor insertion channels formed by the contact carrier and configured to receive connection conductors, and contact recesses configured to receive plug contacts; a primary safety that supports the contact carrier at the circuit board and that is in particular configured as interlocking elements, characterized in that the primary safety includes at least two interlocking arms that are arranged in pairs adjacent to each other wherein interlocking devices of the interlocking arms have different interlocking geometries.

Abstract: A plug connector comprising a first contact support, in which contacts are disposed, which enter an electrical connection with mating contacts of a second contact support, when the contact supports are joined. The first contact support comprises first coding device, which interacts with a second coding device of the second contact support and assures a defined joining of the contact supports in order to connect the contacts and the mating contacts.

Abstract: The invention relates to a plug connector comprising a first contact support, in which contacts are disposed, which enter an electrical connection with mating contacts of a second contact support, when the contact supports are joined, wherein the first contact support comprises first coding device, which interacts with a second coding device of the second contact support and assures a defined joining of the contact supports in order to connect the contacts and the mating contacts. It is the object of the invention to simplify the production of plug connectors, in particular plug connectors with mechanical coding devices. The object is accomplished through a plug connector according to claim 1, which is in particular characterized in that at least one contact support comprises a receiver for a coding device configured as a separate component.