All About Polycarbonate Enclosures – Benefits and Different Enclosure Application.

In case you need an enclosure for any indoor and outdoor applications, aside from stainless steel and aluminum enclosures, engineers can opt to using polycarbonate enclosure. It is lightweight, incredibly versatile and rugged enclosures can can fit to many possible company applications.

To take a closer look, here are the benefits, features, and common applications for polycarbonate enclosures:

What are the benefits of polycarbonate enclosures?

  1. Durable – polycarbonate enclosures are made of a material which is designed to withstand high temperature applications. Aside from that, it is UV resistant and can also resist other possible chemical reactions. Because of this, this is very ideal for outdoor applications and purposes.
  2. Lightweight – polycarbonate enclosures are lightweight and it is easy to carry them around
  3. Customizable – polycarbonate enclosures are durable and it can handle different customizations and it is easy to add cutouts
  4. Cost-efficient – aside from the fact that they are durable and strong material for enclosures, compare to its metal counterparts, polycarbonate are an affordable material for enclosures.
  5. Protection from ingress and corrosion – polycarbonate enclosures can protect equipment from any kind of ingress (water, dust, rain) and it prevents corrosion from forming.

Common Applications for Polycarbonate Enclosures

Aside from being a very versatile enclosure, it can fit to several applications. From wastewater plants to paper manufacturing plants, engineers can use this enclosure to wide variety of applications:

  1. Wastewater treatment plants – these companies use electronic equipment that use signals to transmit data and information from the machinery to the main data center. Polycarbonate enclosures are a perfect fit for this type of application because it blocks UV rays and allows transmission of signals. It can protect the equipment from moisture and it is lightweight. Enabling the engineers to modify the enclosures depending on different type of needs.
  2. Solar Power Plants – Because of their ability to withstand and have high tolerance for high temperature environments, polycarbonate enclosures are a perfect fit for this application. Aside from this, it can also withstand UV radiation as well as blowing dust and ingress of dirt and rain.
  3. Marine offshore applications – since polycarbonate enclosures can precent corrosion and is lightweight, it can also be used for marine offshore applications. Since in this industry, processes are done near sea side, it is important to have enclosures that can protect equipment from any possible damage. Polycarbonate enclosures can also be submerged temporarily in water.
  4. Manufacturing Plants – in this industry, enclosure should be corrosion and heat resistant. In for example pulp and paper plants, chemicals and mechanical processes can make the environment extremely hot and moist. This can damage the equipment if not protected properly by an enclosure. In this environment, corrosion can happen anytime thus it is crucial that the material used can prevent corrosion.

In conclusion, polycarbonate materials is a perfect alternative if companies want a cost-efficient and effective enclosure. But it cannot be said that these type of enclosures can replace stainless steel and aluminum ones. There are pros and cons in using polycarbonate enclosures and proper knowledge about this can equip design engineers when making their decision.

NEMA 3R Rating

What is the NEMA 3R Rating?

Electrical Enclosures: What is the NEMA 3R Rating?

NEMA 3R Definition with General Reference Applications

NEMA 3R enclosures are widely used for outdoor applications for industrial uses, such as protecting electrical wiring and junction boxes. NEMA 3R enclosures protect electrical equipment from water ingresses such as falling rain, sleet, snow and external ice formation caused by extremely cold weather. And NEMA 3R enclosures are compatible with both outdoor and indoor use and applications. NEMA 3R enclosures can also be used for indoor applications to protect electrical equipment or wiring from unexpected water dripping from water pipes or a leaking roof that needs repair.

NEMA 3R Electrical Enclosures – General Features:

  • Outdoor protection from rain, ice formation, and foreign substances.
  • Indoor protection from falling dirt and dripping water from pipes
  • Provides protection for electrical equipment from incidental contact.

NEMACO™ Offers Several Types of NEMA 3R Electrical Enclosures

  • Indoor & Outdoor Floor Mounted Cabinets
  • Indoor & Outdoor Wall Mounted Enclosures
  • Indoor& Outdoor Electrical Wiring Boxes, Junction Boxes and Pull Boxes
  • Electrical Wiring Trough Enclosures

Additional NEMA 3R Information

NEMACO™ offers NEMA 3R enclosures for industrial applications that can be used for protecting and housing electrical components such as switchgear, power distribution controls, and electrical wiring. NEMACO™sells NEMA 3R electrical enclosures that are manufactured to NEMA and industrial standards that ensure quality to our customers.

We manufacture electrical enclosures from top-grade carbon steel and we can customize enclosures according to a customer’s specifications.

Alternate Materials for NEMA 3R Enclosures

NEMACO™ manufactures NEMA 3R enclosures primarily with quality grades of carbon steel. But NEMACO™ can offer stainless steel and aluminum materials as an option for many applications. Each of the ferrous and non-ferrous raw materials has specific and unique qualities that make an enclosure optimum based on the application. The different materials show several characters and capabilities that make NEMA 3R enclosures unique and specifically suited for certain environments and applications. Call NEMACO™for suggestions about materials selection for your application.

  • Powder Coated Carbon Steel (HR / CRS) – Strong & Durable
  • Powder Coated Aluminum (5052, 6061) – Low Weight
  • Stainless Steel (Material Grades 304/316) – Strong, Durable, Corrosion Resistant

Carbon Steel used for Enclosures

Most forms of carbon steel are malleable, therefore it can be easily formed, shaped, cut and welded. Typically, cold rolled carbon steel (CRS) are common grades of steel of low or medium carbon content in the steel.

CRS in flat sheet format is commonly used as an electrical enclosure and cabinet material since it has structural strength and rigidity when formed(folded) into enclosure sides and other related enclosure parts. Of course, CRScost less than stainless steel and it has many functions and advantages but it does not have the corrosion resistance properties of stainless steel.

Powder coated CRS is ideal for many NEMA 3R Enclosures products generally due to the materials lower cost, overall strength and weldability.

Custom Metal Enclosures

Different Types of Custom Metal Enclosures for Electrical Equipment

Any company who needs custom electrical enclosures for their equipment can be provided by any enclosure manufacturing company. They just have to be specific to the design that they want to achieve. This also includes the type of steel material they would like to have, such as – aluminum, stainless and carbon steel. Lead times may also vary so a good communication about what is needed to be achieved is important.

Also, there is an option for an enclosure to be customized – via silkscreen or engraving. In addition to this, a clear understanding of the NEMA or IP rating needed for the specific enclosure will be helpful in communicating to a certain manufacturing company of the enclosures needed to be designed.

Enclosure types

There are several types of customization a company can choose from wall mount, free-standing, floor mount, JIC and through. It is important to note that the size of these enclosures is not limited, they can be built according to the needed size for the electrical equipment. One of the most common ones is the free-standing portable enclosures.

Additional assembly

In regards to the parts of the electrical enclosure, a company can request for an adjustable swing door assembly. This provides an extra space for the inside and the outside for the enclosure for the specific electrical equipment. This will allow the company to easily assemble the electrical equipment inside the enclosure. Doors can be made of solid metal, a feature window, and cutouts or mounting holes. Different applications call for different customization needs. There are also clamps, latches, turn handles, and lock options if you would like an added security for your electrical enclosure. For other seal options, there are strips, die-cut, and bulb extrusion. This enables the enclosure to protect your electrical equipment inside. Communication is the key, let your manufacturer know of what other types of features that you would need.

Other Features

The other feature that you can add is studs and nuts. It can be placed on the back panel of the enclosure of wherever you need them for an efficient installation. There will be no need to drill or tap mounting holes and this will also save your company resources and time. Additionally, there can also be gland plates that can be placed through custom cuts and holes. This can be placed on either side or top/bottom part of the electrical enclosure.

Different customizations for different applications are needed. Some of the companies manufacture electrical enclosure for different industries, such as fire protection, food and beverage, water treatment, power generation, communication/telecom companies, transportation, chemical, wastewater management, petrochemical, and oil and gas. One should note however that there are companies that only specialize for specific types of industries. Message the manufacturing companies to know more.


Lastly, do not forget to be specific about the different protection you need for your electrical enclosures. Most of the common protections enclosures can have are corrosion-resistant, water and dust ingress, hose-water resistance. There are also submersible enclosures for marine offshore companies.