There are a range of grades for each design as they are built to meet specific application requirements. One grade may be perfect for a certain application but it won’t have the right properties for a different application. Read More…
We are committed to excellence and our innovations in enclosure technology is an example of our commitment. Our unparalleled electronic enclosures are specialized for various tasks and our facility is ISO 9001:2008 certified & RoHS compliant.

Maysteel provides complex sheet metal fabrication with a focus on design for manufacturing. Founded in 1936, we combine our extensive engineering experience and market knowledge with an expanding supply chain footprint, allowing us to fabricate products that others can’t. We design, engineer and manufacture custom OEM sheet metal enclosures, kiosks, cabinets and racks. We have locations in the...

Our specialty is in precision sheet metal and plastics fabrication. We provide services for precision mechanical and electromechanical assemblies plus manufacture custom electronic enclosures. Since 1970, we have been using our sheet metal enclosures to offer you a quality metal enclosure solution.

Hubbell® Wiegmann® is your complete enclosures solution! We offer NEMA enclosures, stainless steel enclosures, JIC enclosures, non-metallic enclosures and aluminum enclosures as well as wireway systems. For 75 years, we have been serving the needs of a broad range of industries. For more information about our capabilities, contact Hubbell® Wiegmann® today and a representative will assist you.

EMCOR® Enclosures is a modular enclosure manufacturer and makes related component items as well. Our electronic equipment racks and enclosures feature an extensive selection of rack heights, widths, depths, and styles that target your specific design requirements. A variety of external and internal accessories are available to complete your design. Modified or custom designs are also available....

Hammond Manufacturing is a leading supplier of transformers, racks and cabinets, as well as enclosures for the electrical and electronic industries. We combine performance manufacturing equipment and continuous improvement management techniques to maintain our reputation for quality. For more than 100 years, customers have relied on Hammond to provide a wide selection of products with unsurpassed ...

More NEMA Enclosure Manufacturers
There are around 20 different grades of NEMA enclosures to choose from, so it is important to work with an experienced NEMA enclosure manufacturer in order to receive the right enclosure based on your application and requirements.
As stated before there are a number of different advantages that these designs and standards offer and each different grade of NEMA enclosure provides different properties such as drip-tight designs, water tight construction, heat resistance, and protection from dust, light, and environmental hazards as well as many, many other properties.
Many of these enclosures are polycarbonate enclosures, which provide a number of advantages as it has high impact strength, can withstand extreme temperatures and can be easily customized to fit a specific application.
The grades range from 1 to 12 with a few variations thrown in between. For example, there are six different grade 3's: 3, 3R, 3S, 3X, 3RX, and 3SX. The X refers to the enclosures as being corrosion resistant and the other additional letter each represent certain properties or the omission of properties from the standard grade.
The diversity of NEMA enclosures is the reason why knowing your application and needs is so crucial to receiving the right NEMA enclosure for your specific application. Whether you are seeking a NEMA enclosure that is designed to protect against dust, water, coolant, oil or some other outside hazard, finding the right enclosure is vital to ensuring that your enclosure functions properly and most effectively.
Another important step to receiving the best possible NEMA enclosure for your application is to work with a trusted, experienced NEMA enclosure manufacturer, one who has the knowledge and capability to manufacturer and suggest the right grade of NEMA enclosure for your application.