The IP Code, otherwise known as ‘Ingress Protection’, ratings are defined in the international standard EN 60529 (or European IEC 60529.) Similar to NEMA ratings by the National Electrical Manufacturers Association, the IP ratings are used define the level of sealing effectiveness of enclosures against penetration from foreign matter and water/moisture. The ratings for an enclosure are determined by actual testing.
The IP number is composed of the letters ‘IP’, two numbers and possibly one or two letters. The first number refers to the protection level against solids, and the second number to the liquid protection level. The higher the number, the greater the protection level. The optional letter codes relate to protection of persons against access to hazards within the cabinet, and any other special notice.
Below tables show the possible protection ratings and the description-
Example – IP54 – IP – Code Letters, 1st Numeral is 5, 2nd Numeral is 4
An enclosure with an IP rating of this designation, IP54 –
5 – Equipment within enclosure is protected from ingress dust of a limited quantity, such that no interference of performance is caused
4 – Equipment within enclosure should have no harmful effects due to water splashed against the enclosure from any angle
Here at EXAIR we work with IP ratings everyday. The Cabinet Cooler System line of products are made to keep electrical enclosures cool inside, while maintaining the integrity of the enclosure IP Code rating.
If you would like to talk about IP or NEMA ratings and the Cabinet Cooler Systems or any of the EXAIR Intelligent Compressed Air® Products, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.
Industrial facilities incorporate a variety of processes and procedures to meet customer demands. The ability to convert incoming resources into the desired output hinges upon proper up-time inside of the facility. Whether producing raw materials, performing value-adding services, or manufacturing consumer goods, downtime and failed systems inside of an industrial facility mean lost throughput, lost profit, and increased cost.
As temperatures begin to rise across the US, heat related equipment failures become more prevalent. Industrial facilities need a way to alleviate the problems caused by these increased temperatures and to mitigate the risk of failing electrical devices due to heat.
EXAIR Cabinet Coolers provide this solution using nothing but compressed air.
EXAIR Cabinet Coolers convert a source of compressed air into a very cold stream of air, capable of cooling a sealed enclosure. They are mounted directly to the enclosure, feeding in air as low as 18°F (-8°C) to bring the internal temperature of the cabinet down to acceptable levels. While the cold air generated by the Cabinet Cooler is fed into the enclosure, hot air is simultaneously removed, maintaining relative humidity inside the enclosure at 45%.
Rated for use in NEMA 12 (IP54), NEMA 4, and NEMA 4X (IP66) environments, EXAIR Cabinet Coolers are available in aluminum, 303 stainless steel, and 316 stainless steel. No matter the material of construction, EXAIR Cabinet Coolers can provide 275 – 5,600 BTU/hr. of cooling capacity in industrial applications with ambient temperatures up to 125°F (52°C). For hotter environments up to 200°F (93°C), High Temperature Cabinet Coolers are available.
In extremely dirty environments, Non-Hazardous Purge systems provide a continuous stream of air (1 CFM) into the enclosure, maintaining a positive pressure and preventing any dust intrusion.
Each system type and material are available to ship from stock*, allowing fast delivery to your facility and quickly solving an overheating condition of your devices.
Fans and traditional air conditioners can effectively remove heat, but they provide no separation between the sensitive components inside of an enclosure and the dirty industrial environment outside. Simply installing a fan or AC unit can allow dust, oil, and other ambient contaminants into the enclosure, leading the failure of the expensive equipment inside. And, these solutions degrade over a finite lifespan (the Cabinet Cooler does not), they require routine maintenance (the Cabinet Cooler does not), and they need more time to install (Cabinet Cooler installation is fast and simple). Curious how easy it is to install an EXAIR Cabinet Cooler? Check out this video and see just how easy it really is.
For those applications without enough spacing to mount a Cabinet Cooler on top of the enclosure, Side Mount Kits are available. These kits are also available from stock and are just as easy to install:
All EXAIR Cabinet Coolers are available with thermostat controls to regulate internal cabinet temperatures and compressed air consumption. EXAIR thermostats feature a bimetallic contact strip to open and close the electrical circuit in response to air temperatures. These thermostats quickly respond to changes in air temperature and are specifically suited for their intended use. Preset for 95°F (35°C), a suitable temperature for most electronic devices, these thermostats are fully adjustable for specific application needs.
In the event a more sophisticated thermostat control is needed, Electronic Temperature Control units can be implemented. These standalone units utilize a thermocouple to determine internal cabinet temperatures which display onto a digital readout. Push-button controls on the digital readout board allow for easy modification of the internal cabinet temperature set-point. When the desired internal temperature is reached, the Cabinet Cooler will turn off automatically.
Is it really that easy? Can a Cabinet Cooler provide real cooling for sensitive devices and last for years without any maintenance? Well, here’s an example:
An automotive radiator manufacturer experienced a problem with an overheated motor drive, causing one of their production lines to come to a stop. The root cause of the failure was a leaking refrigerant-based air conditioner, which failed and allowed water into the enclosure housing the motor controls. When the water entered the enclosure, it shorted the motor drive and caused the production line stoppage. The new drive cost over $20,000 and a month of down time to purchase, receive, and install.
Following this failure, the customer searched for a more suitable cooling solution and installed an EXAIR model 4330 NEMA 12 2,000 BTU/hr. Cabinet Cooler System. With an included thermostat control, this system provided proper cooling for the application without any need for required maintenance or potential to leak water into the enclosure.
Fast forward six years and this same customer reached out to EXAIR for another application. During the conversation they mentioned the Cabinet Cooler they purchased many years before was still in operation, still providing proper cooling for the enclosure, and that no maintenance had been performed (Cabinet Coolers do not require routine maintenance). Even in the dirty industrial environment of this manufacturing facility, the EXAIR Cabinet Cooler continued to function flawlessly.
When exploring industrial solutions, required routine maintenance is a common concern. The cost of replacement components and time required to perform necessary maintenance weigh heavily on decision makers. Fortunately, EXAIR Cabinet Coolers do not require any maintenance, and with clean, dry compressed air their lifespan can be 20 years or more. There are no moving parts to wear out or routine maintenance services to be performed.
If you’re in need of a suitable cooling solution for an industrial enclosure, consider an EXAIR Cabinet Cooler. They’re smaller than traditional AC units, faster to install, and require little-to-no-maintenance. Feel free to contact an EXAIR Application Engineer with any questions, or fill out our online Cabinet Cooler Sizing Guide to have an Application Engineer contact you.
As you may have seen in our most recent E-NEWS Special Bulletin, or experienced in real life (depending on where you’re located,) most of the eastern United States is seeing a pretty significant heat wave for early summer…or, as we call it at EXAIR, “Cabinet Cooler Season.” And this year is kicking it off with a bang, for sure.
On Tuesday, when the E-NEWS email went out, I was on the phone, processing an order for a Model 4340 NEMA 12, 2,800 Btu/hr, Thermostat Controlled Cabinet Cooler System, to ship overnight to a user who wanted to protect the new drive they were replacing because theirs overheated. They were up and running before noon on Wednesday.
On Wednesday, four local customers placed “will call” orders for Cabinet Cooler Systems. I had the pleasure of talking with one of them, who was installing one for the very first time. As he was looking over the Installation & Operation Guide before he left our building, he just wanted to make sure that hooking it up was as simple as it sounded…and it is. We pulled the parts from the box and went over exactly how each step is performed, and he left feeling confident that he’d have it installed pretty quickly. Just in case, I also got his email address and sent him a link to our NEMA 4 Cabinet Cooler System Installation Video Blog:
I don’t know what the rest of the summer holds in store, but I know this: if you have concerns about protecting sensitive, critical, and/or expensive electrical & electronic enclosures, EXAIR Cabinet Cooler Systems are the solution you’re looking for. Easy to install. Maintenance free operation. Durable, UL Listed, and CE Compliant. If you’d like to discuss your application and get one for yourself, call me; let’s talk.
Selecting the proper Cabinet Cooler to solve your electrical panel overheating problems is simplified by using the Cabinet Cooler Sizing Guide and allowing EXAIR Application Engineers to calculate which Cabinet Cooler will be best. It is important to size Cabinet Coolers properly to ensure the most efficient cooler is chosen and the proper NEMA rating is chosen for your cabinet. This video illustrates how simple it is to gather the information for a long term solution to heat related problems.
Cabinet Coolers install in minutes, not hours. They protect your electronics from seasonal hot weather spikes, normally high temperature environments, or too much heat dissipation from electrical components in an enclosure. EXAIR’s selection of Cabinet Coolers include NEMA 12, 4 and 4X ratings. They normally operate with a thermostat control to turn themselves on and off as needed throughout the years and this is the most efficient way to run them. They are available from stock to solve your problem quickly and will fit nearly any environment with a variety of materials (Aluminum, 303 stainless steel or 316 stainless steel) and temperature ratings.
When compared to air-to-air heat exchangers and refrigerant based air conditioners, Cabinet Cooler systems win hands down.
Companies generally do not have issues with their control panels until the heat of summer. As the ambient conditions get warmer, the temperatures inside electrical panels also rise. Sensitive electronics start to malfunction and shut down. A telecommunication company was having the same issues. They operated an ultra-broadband access service. When the temperature alarms triggered, the system would shut down and reset. This on and off cycling concerned the engineers in damaging and reducing the life of the electronics inside the telecommunications control box.
They contacted EXAIR as a possible supplier to retrofit their cabinets in critical areas. They started the conversation with a list of some stringent requirements. They indicated that they were looking at other options like a refrigerant panel and an air-to-air heat exchanger. The challenge was on…
Power Consumption: 350 Watts
Maximum Ambient Temp: 150 Deg. F (65 Deg. C)
Cabinet Location: Very limited space
Retrofitting capability and ease of installation to existing cabinets
EXAIR Cabinet Cooler: Excellent. 22mm knockout hole, about 30 minutes to install and weighs 0.5Lbs (0.2Kg).
Refrigerant Type: Poor. Large panel cut outs, roughly 4 hours of installation, and weighs about 30Lbs (13.6Kg)
Heat Exchanger: Poor. Large panel cut outs, roughly 2 hours of installation, and weighs 16Lbs. (7.3Kg)
Fit into tight spaces
EXAIR Cabinet Cooler: Excellent. For this application, it is 5.2” (131mm) high and 1.17” (30mm) diameter.
Refrigerant Type: Poor. 22” (560mm) X 12” (305mm) X 8.5” (216mm). But also need additional room for air flow.
Heat Exchanger: Good. Roughly 11” (279mm) X 16.5” (419mm) X 3.5” (89mm). But also need additional room for air flow.
Refrigerant Type: Poor. Base unit is near $1,500.00
Heat Exchanger: Good. Base unit is near $1,000.00
Overall, in this scenario, there is no comparison. The EXAIR Cabinet Cooler can be mounted in minutes and start supplying cool air to the electrical components. With no maintenance required and no moving parts, you can get many years of service. Simple, quick, and easy made EXAIR Cabinet Cooler the correct choice. All Cabinet Cooler systems are available with a UL Listed NEMA 12, NEMA 4, or NEMA 4X rating. They are CE compliant and available in 316SS for highly corrosive applications. If you have electrical heating issues like the telecommunication company, you can contact one of our Application Engineers for help.
NEMA stands for National Electrical Manufactures Association. This organization, founded in 1926, sets standards for the manufacture of safe and effective electrical products. It is an ANSI-accredited standards developer and, as such, has much credibility in the industries it serves. Many companies require or encourage the use of NEMA-rated equipment. Not having it may limit a company’s access to certain markets. In that testing, if required, is not too involved, achieving a rated unit is actually quite doable and, in the long run, worth it for safety-sake. NEMA-rated enclosures are about controlling a substance’s ability to either enter or exit an enclosure protecting electronics. Keeping you, and the electronics, safe is what this is all about. NEMA ratings are 1 through 13 with EXAIR’s cabinet cooler systems meeting NEMA 12, 4, and 4X.
To be rated NEMA 12, the enclosure must be built in such a way to prevent solid contaminants like air-born dust, dropping dirt, fibers, fly-off shavings, and lint from getting inside. It must also prevent dripping or slightly splashing water and oil and non-corrosive coolants from seeping, spraying, or being splashed into it.
NEMA 4 must be resistant to splashed or sprayed water and rain, sleet, or snow and not be damaged by ice forming on the outside. It must also prevent entry of solid contaminants like dust and dirt.
NEMA 4X is identical to NEMA 4 with the addition that the enclosure must be corrosion resistant.
With our UL listed NEMA rated Cabinet Coolers, we can cool your cabinet and maintain its original enclosure integrity to protect your electronics just as needed. Our NEMA 12 cabinet cooler system is ideal for general industrial environments. Our NEMA 4 cabinet cooler system incorporates a low pressure relief valve for both the vortex tube and the cabinet air exhaust that closes and seals when the cooler is not operating to maintain the integrity of the NEMA 4 enclosure. Our NEMA 4X cabinet cooler system has the same low pressure relief valve as the NEMA 4 and is made of stainless steel, allowing for protection in corrosive and/or wash-down environments.
To further enhance their effectiveness, EXAIR offers thermostat controls to turn the units on and off as needed, which conserves compressed air. They are available with a simple thermostat (120V and 240V), an electronic temperature control or ETC thermostat (120V and 240V) which is adjustable from outside the enclosure and provides feedback of the internal temperature. Other models include a non-hazardous purge thermostat control, continuous operation, and high temperature versions that comply with NEMA 12, 4, and 4X ratings. We can meet cooling capacities (Btu/hr) at 100psig ranging from 275 to 5600. To assist in determining which system will work in your cabinet, a sizing guide is even available on our website.
If you have a cabinet that needs cooling and it is rated to NEMA 12, 4, or 4X, let us know how we can help. Chances are pretty good we can provide the cabinet cooling system you need.
With the Summer heat upon us here in Ohio the inquiries for our Cabinet Cooler Systems are increasing by the day. A question we always ask customers with Cabinet Cooler Sizing Guides is, “What NEMA Type is your enclosure?” There are quite a few times where no one truly knows what a NEMA rating is. So what exactly is a NEMA rating?
NEMA is the National Electrical Manufacturers Association, one of the many standards they publish is the NEMA rating standard for electrical enclosures up to 1000 Volts. This standard is where NEMA Types such as 12, 4, and 4X come from (you will also see an international standard reference as “IP”, more on that later). It categorizes the enclosures by their ability to protect the internal components from things such as corrosion, dust, oil, even external air quality. These standards are reviewed every five years and the last review was done in 2013. The reviews are generally based on improving safety, clarity of the standard, and testing methods.
So what NEMA ratings does EXAIR offer? For our Cabinet Cooler Systems, EXAIR offers three very common NEMA types to try an offer a selection to fit the needs that we most commonly encounter. The NEMA types and their descriptions are below. For a full list of the Non-hazardous location NEMA enclosure types, click on this link.
Type 12 (IP54): General purpose, indoor use. Protects against falling dirt and circulating dust, lint, fibers, and flyings. Protects against ingress of dripping and splashing water. Rust-resistant Type 12 enclosures do not include knockouts.
Types 4, 4X (IP66): Water-tight, dust-tight, sleet-resistant. Resistant to windblown dust. Indoor or outdoor use. Also provides protection against splashing and hose-directed water. The “X” designation indicates corrosion-resistance.
The EXAIR Cabinet Cooler Systems also reference an equivalent IEC (International Electrotechnical Commission), IP code. This is a code from the IEC system which specifies the ingress protection which classifies and rates the degree of protection provided against intrusion (body parts such as hands and fingers), dust, accidental contact, and water by mechanical casings and electrical enclosures. They are a two digit number that represents the level of protection against physical objects and he ingress of water. Coorelation between NEMA ratings and IP codes is not always possible. EXAIR has ensured that we also meet the equivalent IP codes shown in the NEMA descriptions above.
If you have a hot enclosure and you are not sure how much cooling is needed or what the NEMA type is, contact us. We will gladly help you gather the information needed to calculate the heat load requirements and help determine the correct NEMA rating.