Filter fan for cooling a control box comprises a fan and a filter cassette arranged in a housing which is built into an opening of a control box wall

摘要

Filter fan comprises a fan (5) and a filter cassette (11) arranged in a housing which is built into an opening (41) of a control box wall (40). The housing is closed on the side facing the inner chamber (IR) of the control box using a lid (1). The lid is provided with hot air inlet openings (18) in the region of a hot air outlet housing (14) and air outlet openings in the region of the fan housing (22). The filter cassette is connected to the base of the filter housing (2) or lid.