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I want any suggestion about thermal management of the inverter which is installed in dust environment. at the same time prevent the dust enter into the inverter. the inverter is installed in the small box to control the blower fan in dust area. but the inverter become really hot. even though it not exceed the spec range of heat, it will effect the cct inside if the heat gather will give bad effect to the cct in long term. how to decrease the heat for this case?.