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20110036961 | Modular Apparatus and Assembly - A modular apparatus comprising a mounting rail, a first assembly and a second assembly, wherein the assemblies are arranged on the mounting rail which has a profile configured for attaching the assemblies to a rear wall associated with the assemblies. A space is formed between the rear wall and the mounting rail, and the first assembly is configured to produce an overpressure in the space. In addition, the second assembly is configured such that the overpressure results in a medium, which is located in the space, flowing into the interior of the second assembly, for cooling assemblies. | 02-17-2011 |