Metal boxes are among the simplest metal fabrications, but they are also among the most important. Metal boxes are used to house electrical components in all kinds of contexts. 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 Metal Box Manufacturers
Fuse boxes and outdoor electrical meters are two examples of metal boxes that are essential to the safe and effective operation of all electronic equipment in homes. Businesses also depend on metal box-enclosed electrical equipment to keep their operations supplied with power.
Especially in industrial contexts, businesses cannot do without electrical enclosures; they keep sensitive electronic components from becoming contaminated with dust and debris. They also reduce the chances of components becoming damaged from accidental impact with machinery or workers.
Metal box enclosures can be large enough to house entire electrical panels; such enclosures can be seen at many intersections where computerized traffic control software manages the tempo of traffic signals. They can also be as small as simple wall-mounts; many light switches are composed of partial metal boxes covered with a plastic plate for aesthetic and safety purposes.
The word "box" evokes rectangular and square shapes, though the words "metal box" can be used to describe metal enclosures with more than just six faces. Also, especially in the case of hand-held examples, many metal boxes feature rounded edges and corners. Depending on a given metal box's application, it may be composed of nothing but a single layer of metal, or it can feature several layers of metal insulated with another material and fitted with interference-resistant shielding.
Standardization organizations have established ratings to indicate to professionals what kinds of boxes are suitable for certain purposes. Among the more prominent of these organizations is the National Electrical Manufacturers Association (NEMA), which rates metal enclosures that are used to house electronics.
NEMA's rating scale ranges from ratings for products that provide basic protection from dust to products that can be submerged in oil. Other agencies like the International Electrotechnical Commission also produce rating systems that help professionals choose metal boxes that are appropriate for their purposes.
While metal boxes may not seem like they merit the scrutiny of international commissions for standardization, the importance of those efforts is clear in recognition of the reality that metal boxes house computers that regulate traffic flow, the hardware that keeps telecommunication lines operational and many other kinds of important equipment.