How to Complete Thermal Management Calculations for Outdoor Electrical Enclosures

The pervasive use of electronics in control systems requires not only technical maintenance of functionality and software, but it raises the priority of temperature control inside electrical enclosures to the top of your to-do list.

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Minimizing Your Plant's Electrical Maintenance Issues with Proper Cabinet Cooling Systems

Your electrical equipment needs to be sheltered from harsh environments and extreme conditions. Electrical enclosures do a great job of keeping the electronics shielded from contaminants, such as dirt or moisture. But what about the heat produced by the equipment themselves? Choosing the right cabinet cooling system will help decrease unplanned maintenance by keeping the equipment in proper operating conditions.

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How an Efficient Cabinet Cooling System Can Reduce Unwanted Electrical Equipment Maintenance Costs

When you purchase an electrical enclosure to house your equipment and keep it safe, you're investing in the longevity of all of the electrical components. Electrical equipment can produce substantial heat, so also adding a cabinet cooling system to the purchase can keep your unplanned maintenance needs to a bare minimum. Having the proper operating temperature reduces overall system fatigue and keeps your equipment at peak condition.

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When Is the Ambient Temperature Too Hot to Rely on Air to Air Heat Exchangers for Enclosure Cooling?

When you are looking for an efficient method for enclosure cooling, a heat exchanger is a good solution for a few different reasons. Not only is a heat exchanger energy efficient, but it allows you to maintain a completely closed loop enclosure cooling solution. The way a heat exchanger operates is by employing a heat pipe principle to exchange heat from an electrical enclosure to the outside. The waste heat is actually the engine that drives the system.

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4 Enclosure Cooling Methods that Prevent Plant Shut-Down

In industrial facilities, electronic equipment is frequently used for motor control and most machines are PLC controlled. This use of electronic equipment has increased electrical enclosure heat loads because of the high heat dissipation characteristics of electronic equipment. At the same time, electronic equipment is susceptible to malfunction if allowed to get too hot, so it is widely accepted that electrical enclosure temperatures are kept below 100 ºF (37 ºC) to limit the possibility of unpredictable behavior or failure that could lead to a plant shut-down. 

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3 Enclosure Design & Cooling Considerations when Designing Electronics for Outdoors

When you require enclosure cooling for your sensitive electronic equipment, dealing with the outdoor elements can complicate things slightly. Without the constant ambient environment present as in most indoor facilities or the shelter provided by the building to shield the enclosure from precipitation and other outdoor elements, the enclosure can be subjected to much more extreme conditions when placed outdoors. Here are some things to keep in mind when planning and designing your electrical enclosure cooling system to be located outdoors.

Moisture and Contaminants

A NEMA type 4 or 4X closed loop cooling system will prevent any moisture from entering the enclosure during closed-door operation, and dirt and dust from the surroundings will also be kept out. Even so, any time the door is open for emergency repairs or routine maintenance, contaminants have an opportunity to enter the enclosure. 

When constructing the enclosure, consider the prevailing wind direction, and orient the door away from the wind, so dirt and dust will not be blown directly into the enclosure. Also consider a secondary shield, such as a tarp or awning that can be erected around the enclosure when repairs will be performed. This way the enclosure will remain cleaner and drier when the door is open.

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Heat Exchanger, Fan or Air Conditioner: Which Enclosure Cooling Method Is Best for Your Application?

When deciding which cooling method to use for your electrical enclosure, there are a few options to consider. Among air conditioners, filtered fans, and heat exchangers, there are intrinsic differences which can keep your equipment cool and operating properly if the right cooling method is chosen. If not, the electrical components can be exposed to elevated temperatures or adverse conditions, or the cooling system will be inefficient during cooling operations.

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Cabinet Cooling System Technologies to Consider when Planning Your Next Project

Electrical control equipment is becoming increasingly sophisticated as designers add more features to what used to be relatively simple electro-mechanical control gear. Circuit breakers now have sophisticated electronic controls, variable speed drives and soft starters have replaced motor contactors, and PLC control has supplanted other forms of control.

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Cooling Options for a Sealed Electrical Enclosure

Although industrial electronic components are generally robust and well designed, they are sensitive to contamination, moisture, and excessive temperature. They need to be kept cool, dry, and free of dust, debris, and corrosive chemicals. These requirements are to a certain extent in conflict because good ventilation is generally required for cooling, but protection from dirt and contamination requires a sealed enclosure.

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Understanding the NEC Hazardous Location Option: Class 1, Div 2, Groups B, C, and D, for Enclosure Cooling Systems

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