The invention relates to a cooling arrangement (12) for an electrical or appliance cabinet (1), which has a functional area (4) with a cross-sectional area which extends along a longitudinal axis (9), wherein appliances and/or devices which produce heat during the operation can be arranged or are arranged in the functional area (4), wherein the cooling arrangement (12) comprises a mounting arrangement (11) whose longitudinal axis (27) to which the cross-sectional area corresponds and which has a plurality of holders (13, 14) for respectively alternative holding of a closure element (47) or an air-to-air heat-exchanger cassette (15, 16), wherein the air-to-air heat-exchanger cassettes (15, 16) are designed such that, during operation of the cooling arrangement (12), a first fluid flow (25, 26), which is connected to the functional area (4), is formed through the respective air-to-air heat-exchanger cassette (15, 16) in each case and a second fluid flow (28, 29), which is separate from the first fluid flow and is connected to environmental air in the electrical or appliance cabinet (1), is in each case formed in each of the air-to-air heat-exchanger cassettes which are arranged in one of the plurality of holders (13, 14), in order to transmit heat from the first fluid flow (25, 26) to the second fluid flow (28, 29), wherein two of the plurality of holders (13, 14) are designed such that the air-to-air heat-exchanger cassettes (15, 16) which are arranged in these holders (13, 14) have outlet openings and/or inlet openings (22, 23) which are at a distance from one another along the longitudinal axis (27), for the respective first fluid flows (25, 26).