Overheating in an enclosure is potentially damaging to electrical and electronic devices. It can shorten the life expectancy of electrical components or lead to failures. A reliable cooling system is therefore an important measure to avoid costly production downtimes.
The use of circulating fans in an enclosure can improve heat dissipation by as much as 10%. The temperature in the vicinity of a critical component can be much higher if it is located near a large heat producing device such as a transformer or power supply. An internal circulating fan eliminates the hot spots by mixing the air inside the enclosure. Cooling units are used in situations where optimum operating temperatures are required inside an enclosure, even at high external temperatures. It is possible to cool the interior temperature to well below the ambient temperature. Favorable positioning of air inlet and outlet openings ensures optimum air circulation inside the enclosure.
