FEATURE CASES & ENCLOSURES


EVALUATING CLIMATE CONTROL in automation system enclosures


Jason Swann, Rittal product manager for Climate, offers some practical tips on how to evaluate an existing enclosure climate control through a series of simple checks


M


anufacturing automation systems are delicate and very expensive


pieces of kit, which perform vital functions for the businesses they serve. The enclosures that protect them


must have strictly controlled internal environments with interior temperatures that are carefully maintained within a few degrees. If not, the impact can be harmful to the inverter drives, power supplies, contactors, PLCs and other electrical and electronic components operating within them. This requires careful control of the climate within the enclosure. Like all electrical equipment, drives create heat and they therefore have a major influence on the temperatures inside enclosures. Drives are often quoted as having efficiency of 97 per cent, so one with a rated output of 150kW can produce as much as 4.5kW of heat. As well as the heat loss inside the


enclosure, ambient temperatures within a production facility will also have an impact on the temperatures that a drive is operating within. A typical enclosure climate control system is designed for an internal enclosure temperature of 35°C. This means that the performance of a


Enclosures from the smallest to the largest.


ENCLOSURES POWER DISTRIBUTION CLIMATE CONTROL


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