In may I wrote a Blog Announcing our new Calculator tool on EXAIR.COM! You can read it here!
The Video below will walk you through how to get the information you need to fill the form in, and take you all the way to final where you can add it to your cart!
By providing certain information like size of the enclosure, NEMA rating needed, and environmental conditions, this new calculator will sort through our large selection of ready-to-ship Cabinet Cooler® Systems and provide instant feedback on the best model number for any applicable electrical enclosure. Taking the guess work out of the equation, EXAIR’s Calculator ensures the customer that they can be confident in selecting the correct product for their unique specifications. You can even Print the form for your records!
If you have any questions or need additional support with the Sizing Calculator please reach out to one of our application Engineers give us a call. Or shoot us an email to techelp@exair.com
From right to left: Small NEMA 12, Large NEMA 12, Large NEMA 4X
EXAIR manufactures Cabinet Coolers to keep your electrical components inside cool. This will help to stop any costly shutdowns or premature electrical failures due to overheating. The EXAIR Cabinet Cooler System is a simple device that generates cold air with no moving parts, condensers, or freon. They are maintenance-free with a long-life cycle; and installation is quick and easy. But when mounting the system to your electrical panel, you want to make sure that the Cabinet Cooler meets or exceeds the integrity standard for that environment. There are standards that categorize electrical panels to protect workers, shield the environment, and contain the electrical components.
Electrical panels come in all shapes, sizes and colors; and can be used in a variety of environments; indoor, outdoor, and even hazardous locations. Depending on the place and setting, you will need to determine the minimum requirements for the integrity of your electrical panel. For example, you do not want to use an “indoor only” electrical enclosure for outside areas. Also, you would not want a standard enclosure to be used in a hazardous area, as it can be very dangerous. The major organizations that create these electrical standards are NEMA, UL, and IP. In this blog, I will cover these organizations and how they rate them.
NEMA, or National Electrical Manufacturer Association, and UL, or Underwriters Laboratory, are generally used in North America. The difference between these two organizations is that the NEMA ratings are self-certifying while the UL requires testing by qualified inspectors, independent of the manufacturer, for compliance. They use numbers and in some instances letters to indicate the type of environment that the enclosure can operate. EXAIR Cabinet Cooler Systems are UL listed; so, they have been tested and verified. Currently, there are over 20 different NEMA/UL classifications. Here is a description by WIKA that shows the different categories for both NEMA and IP.
IP, or Ingress Protection, is an international standard commonly used in Europe and is established by the International Electrotechnical Commission, or IEC. This organization also allows for self-certification. They use two digits to define levels of integrity for electrical enclosures against intrusion from foreign bodies and moisture. The first digit ranges from 1 to 6 which specifies the protection rating from solids. The second digit, which ranges from 1 to 8, specifies the protection rating for ingress of water. The higher the number, the better the protection. The combination of these two numbers will give the protection level of the enclosure against dust and water. There is an equivalence with the NEMA ratings to the IP ratings, but it is up to the preference of the user to verify the protection requirement.
EXAIR offers three main NEMA types for our Cabinet Cooler Systems which are the most commonly found within facilities. We also offer an additional two types that are designated strictly for Hazardous Locations and are separately certified by UL to meet those standards.
NEMA 12
NEMA 12 (IP54) Cabinet Coolers are rated for dust tight and oil tight. NEMA 12 cabinet coolers are ideal for general industrial environments where no liquids or corrosives are present and are located inside.
NEMA 4
NEMA 4 (IP66) Cabinet Coolers are rated for dust tight, oil tight, splash resistant and indoor/outdoor service. These Cabinet Coolers incorporate a low-pressure relief valve to allow the internal hot air to escape as well as to close and seal when the cooler is not in operation. This allows for this Cabinet Cooler to maintain the integrity of a NEMA 4 enclosure.
NEMA 4X
NEMA 4X (IP66) Cabinet Coolers offer the same protection as the NEMA 4 but are constructed of stainless steel for food service and corrosive environments.
HazLoc Cabinet Cooler Systems
HazLoc Cabinet Coolers are designed for hazardous locations and are mounted to NEMA 7, 8, and 9 enclosures. EXAIR catalogs these Cabinet Coolers as NEMA 4 (IP66) or NEMA 4X (IP66) as mentioned above. But their registration by UL classified is for Class I, Class II, and Class III hazardous areas. The reason that they do not match the NEMA rating of the hazardous panels is because they require an X-type or Z-type purge system. In combination, they will not sacrifice the integrity of hazardous electrical panels.
EXAIR has Cabinet Coolers in stock with a variety of cooling capacities from 275 BTU/hr to 5,600 BTU/hr (69 Kcal/hr to 1,411 Kcal/hr). We also offer them in 316SS, high temperature versions, and non-hazardous purge. We do have a Cabinet Cooler System Calculator to help determine the best product for your application. If you have any additional questions, an Application Engineer at EXAIR can assist you.
For the longest time we have been using this form on EXAIR.com to get the information we needed to manually calculate the internal and external heat loads and ultimately make a recommendation on which Cabinet Cooler System would be best for that application! Typically it would take thirty minuets to an hour to get a email back from a application Engineer!
While the manual Cabinet Cooler Sizing Guide worked great (and we will still reply within 24 hours), we have been racking our heads over here to better that process and get you a solution faster than ever! Now you type in your information and you have a recommendation and a link to that product on the website where you can learn more or place an order! So you can go from form to order in less than 5 Minuets!!!! Check it Out HERE!!
By providing certain information like size of the enclosure, NEMA rating needed, and environmental conditions, this new calculator will sort through our large selection of ready-to-ship Cabinet Cooler® Systems and provide instant feedback on the best model number for any applicable electrical enclosure. Taking the guess work out of the equation, EXAIR’s Calculator ensures the customer that they can be confident in selecting the correct product for their unique specifications. You can even Print the form for your records!
Cabinet Cooler Calculator
EXAIR’s complete line of Cabinet Cooler systems include 120V AC, 240V AC and 24V DC thermostat voltage, continuous operation, type 316 stainless steel and high temperature models – all of which are selectable with the new calculator. Find this new tool on the website EXAIR.com, in the Knowledge Base Calculators, along with many other resources, such as the CAD Library and Application Database, which also help customers choose a perfect solution. Cabinet Cooler systems start at $534. https://www.exair.com/knowledgebase/calculator-library/cabinet-cooler-system-calculator.html
The first step to solving your overheating problem is to identify the NEMA integrity your enclosure will require. The National Electrical Manufacturers Association (NEMA) uses a standard rating system defining the types of environments that electrical enclosures should be rated. EXAIR has 3 NEMA Ratings to consider before selecting the proper Cabinet Cooler.
NEMA 12(IP54) Cabinet Coolers rated for dust tight and oil tight. NEMA 12 cabinet coolers are ideal for general industrial environments where no liquids or corrosives are present.
NEMA 4(IP66) Cabinet Coolers rated for dust tight, oil tight, splash resistant and indoor/outdoor service. These cabinet coolers incorporate a low pressure relief valve for both the vortex tube and cabinet exhaust. This valve closes and seals when the cooler is not operating to maintain the integrity of a NEMA 4 enclosure.
NEMA 4X(IP66) Cabinet Coolers offer the same protection as the NEMA 4 but are constructed of stainless steel for food service and corrosive environments.
For additional reference, you will notice that each NEMA rating has an “IP” rating as well. Ingress Protection (IP) ratings are an international standard comparable to NEMA ratings. They are used to define levels of sealing effectiveness for electrical enclosures against intrusion from foreign bodies and moisture. The first digit after “IP”, which ranges from 1 – 6, specifies the protection rating from solids and the second digit, which ranges from 1 – 8, specifies the protection rating from water. The table below shows the ratings:
EXAIR has Cabinet Coolers from stock with a variety of cooling capacities in NEMA 12 (IP54), NEMA 4 (IP66) and NEMA 4X (IP66) ratings. Once you know the NEMA/IP rating of the cabinet cooler you need please utilize our Cabinet Cooler Sizing Guide or give any one of our Application Engineers a call as we are ready to help.
