Abstract: The invention relates to a cooling circuit system, comprising a plurality of juxtaposed racks; a double bottom consisting of double bottom elements mounted on a base bottom on which double bottom the racks are mounted; electric or electronic components to be cooled, which components are accommodated in the racks; and a cooling system, the components of which are accommodated in the double bottom, wherein the cooling system comprises fans that are connected in parallel and that blow cooled air from the double bottom towards the juxtaposed racks. The invention relates also to a method of controlling a cooling circuit system of that type.

Abstract: The invention relates to a cooling circuit system, comprising a plurality of juxtaposed racks; a double bottom consisting of double bottom elements mounted on a base bottom on which double bottom the racks are mounted; electric or electronic components to be cooled, which components are accommodated in the racks; and a cooling system, the components of which are accommodated in the double bottom, wherein the cooling system comprises fans that are connected in parallel and that blow cooled air from the double bottom towards the juxtaposed racks. The invention relates also to a method of controlling a cooling circuit system of that type.

Abstract: A switch cabinet with a rack having four vertical frame sections, in which an internal housing arranged in an interior of the switch cabinet is connected to the rack, which has two vertical side walls and an upper and a lower horizontal cover. In order to be able to install the internal housing simply in the switch cabinet, the vertical side walls are attached to the vertical frame sections and each has an upper and a lower longitudinal guide that runs in the direction of the cabinet depth. The cover can be pushed into the longitudinal guides via the open front side of the rack with guide elements and secured to them.