Patent ID: 8109799

Claim:
A high-temperature patch plug for one or more connection lines for connecting electric supply and/or signal lines to heating elements and/or thermocouples or temperature sensors, the high-temperature patch plug comprising: one or more poles, each of the or more poles comprising a contact element connected to an inner conductor of a connection line; a one-piece insulating housing defining an interior, the at least one contact element being accommodated at least partly in the interior, the housing having a plugging side and at least one insertion opening on a side facing away from the plugging side and has a passage opening for each pole on the side facing the plugging side, said plugging side comprising a counterplug contact opening for receiving a counterplug contact, each passage opening being connected to the respective insertion opening via the interior of housing, wherein the contact element, for each pole, is in a locking state in the housing via a locking step arranged in the interior of the housing such that a motion of the contact element in a direction opposite to the plugging direction is limited by the locking, the locking step being formed by an irreversible deformation of the housing.