Benefits of various cooling concepts. Filter fans and air/air heat exchangers Over a long period, filter fans are the most cost-effective means of thermal management in electrical enclosures, provided the [...] potential. As the filter fans permanently draw in possibly contaminated air from the surroundings, effective filter technology is essential. For particularly sophisticated applications, some filter solutions are [...] consideration, such as the risk of condensation and the cost of energy. As a specialist for the thermal management of electrical enclosures, Pfannenberg's view is that maintaining a stable and not necessarily