Inverter and method of cooling an inverter

The invention relates to an inverter, in particular an inverter for a photovoltaic system, comprising a housing (1) having at least one chamber (I) and one in the chamber (I) formed cooling air channel (9) for conducting ambient air as cooling air for electrical and / or electronic components of the inverter, which are arranged along the cooling air channel (9), wherein the cooling air duct (9) from an air inlet opening (11) to an air outlet opening (17) through the housing (1) is guided. The inverter is characterized in that there is provided between two of the components to be cooled, a further air outlet opening (18) in the cooling air channel (9) located above the air inlet opening (11) and above the air outlet opening (17) is arranged. The invention further relates to a method for cooling such an inverter.