Overheating Problems in the Dead of Winter

Internal components of electro-pneumatic panel
Components housed in this customer’s electrical panel

Sometimes it can be easy to see enclosure overheating as strictly a seasonal problem related to outside temperatures.  And, while high ambient temperatures will certainly have an effect on the heat load within an electrical panel, overheating conditions can still occur inside a cabinet, even when there is ice outside.

Case in point, I received an email today from an end user I worked with last summer.  At the time, they were experiencing a seasonal overheating condition and needed a reliable method to remove the heat from their electrical panels.  We went through the Cabinet Cooler sizing process, determined the proper fit for their high temperature application, and found a suitable solution.

Fast-forward to today, and they have a new application with a similar condition.  The new application houses nearly identical components, but inside of a larger panel.  The larger surface area of the larger panel transfers more heat from the ambient space to the internals of the electrical panel.  This means that the total heat load of the application can and, most likely, will increase.

So, we recalculated the heat load for the larger enclosure size, and sure enough, a larger Cabinet Cooler was needed.  Again taking into account the high temperature characteristics of the application, we were able to determine the proper Cabinet Cooler to remove the unwanted heat.

It was nice to see a returning customer remembering the value of an EXAIR solution.  If you’re in a similar position, or if you’re simply interested in what an EXAIR product could do for your application, contact an EXAIR Application Engineer.

Lee Evans
Application Engineer

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