Abstract: A connector is specified having a housing (1) with at least one holding shaft (2) for a complementary plug (3), the connector respectively having a spring arm (4) which bounds the holding shaft (2) on one side, presses on the corresponding side of the complementary plug (3) and locks the plug (3) there in its inserted position, and by a bow (5) as secondary locking mechanism, which holds the free end (6) of the spring arm (4) detachably in the position latched with the plug.