Warkin private limited manufactures model sk 05 20 cooler for switch cabinets. Electronic controls are susceptible to troubles when the temperature is too high. The blow in method cools them frequently with air from atmosphere and/or by some indirect air/air heat exchangers without filters. The functioning of these units depends always on the ambient temperature and thus the cooling effects are unsatisfactory especially in the warm season. The cooling unit of the latest sk coolers is a ready solution for this problem where one has to just prepare one opening in the switch cabinet. The units of the sk 05 20 cooler for switch cabinets are ready to be mounted in the standard cabinets and comes with an efficient fully hermetical refrigerating compressor of oscillation proof arrangement so that vibrations cannot be transmitted to any other unit. The axial fans of these coolers are applicable for ventilation of the condenser and evaporator assure through aeration of the switch cabinet. The sk 05 20 model cooler for switch cabinet is able to remove moisture from the air inside the switch cabinet which makes it perfect for use in subtropical regions.