Abstract: A switch-cabinet system comprises a base module with a base housing and at least one functional module with a functional housing. A functional connection element is arranged in the functional housing in the area of a first through-opening on a bottom side of the functional housing. A base connection element is arranged in the base housing in the area of a second through opening on a top side of the base housing. The bottom side of the functional housing rests against the top side of the base housing. The functional and base connection elements engage and form an interface. The system also includes a sealing insert having a frame with a functional section engaging the functional housing and a base section engaging the base housing. The functional section abuts an inner wall of the functional housing. The base section abuts a wall of the base housing defining the second through-opening.

Abstract: A control-cabinet system has a base module and at least one functional module. The base module has a base housing with a first housing face and a second housing face. The functional module has a functional housing with a housing underside, where a circulation channel is arranged. Air flow may be circulated in the circulation channel, where each base connection element comprises circulation openings which are fluidically connected to the circulation channel. The functional connection element comprises coupling openings fluidically connected to an interior of the functional housing. The coupling openings are coupleable to the circulation openings, in which a fluidic connection exists between the circulation channel and the interior of the functional housing. A fluidically closed circulation circuit comprising the circulation channel and the interior of the functional housing is formed, in which air flow may be circulated.

Abstract: A switch-cabinet system comprises a base module with a base housing and at least one functional module with a functional housing. A functional connection element is arranged in the functional housing in the area of a first through-opening on a bottom side of the functional housing. A base connection element is arranged in the base housing in the area of a second through opening on a top side of the base housing. The bottom side of the functional housing rests against the top side of the base housing. The functional and base connection elements engage and form an interface. The system also includes a sealing insert having a frame with a functional section engaging the functional housing and a base section engaging the base housing. The functional section abuts an inner wall of the functional housing. The base section abuts a wall of the base housing defining the second through-opening.