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Is Nema 4x Explosion Proof?



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NEMA 4X enclosures are one of the popularly used and adaptable types of NEMA enclosures. They are highly resilient enclosures invented to guard electric equipment against damaging environmental conditions such as dirt, rain, ice formation, and corrosion. It also Protects against water access from rain, sleet, and snow since water is a good conductor of electricity. NEMA 4X  is made of stainless steel, making it efficient in protecting the electric cables and equipment since they won’t even rust.

NEMA 4X enclosures are made of materials that resist corrosion such as stainless steel, anodized aluminum, and polycarbonate that guarantees maximum protection. With technology advancing, people have started to install electrical components in different modern settings. seemingly, a good number of industries have identified the merits of using weatherproof enclosures since conditions, where they operate, have constantly been changing in nearly all industries.

Best Materials For NEMA 4X Enclosure

NEMA 4X standards delineate the distinct levels of environmental protection. When the surrounding is wet, dirty, or washed down, NEMA 4X enclosures are the obvious solution. NEMA 4X enclosures can be made up of different materials for example plastic, steel, die-cast aluminum, aluminum sheet metal, and fiberglass. 

Each type of material has its merits and demerits. Your preferred material depends on the application, budget, and degree of customization required. Let us have a quick look at the materials.

Plastic Enclosures

plastic enclosures
Source: Pinterest

Plastic is a good material to make NEMA 4X enclosures and they are always preferred by many since they are lightweight, which makes them easy to carry, unlike metal enclosures. Plastic enclosures are unique when it comes to transparency. The enclosures should have a transparent cover that is easy to see through inside, to make other indicators visible without the effort to open the cover. 

Plastic enclosures are naturally resistant to corrosion this makes them the favorite to be used outdoors and in washdown environments.

Die-Cast Aluminum Enclosure

die cast aluminum enclosure
Source: Pinterest

Die-cast aluminum is also featherweight, but they provide more confining strength and rigidity than plastic. Die-cast aluminum enclosures are generally used to provide cover for electronic, hydraulic, and electrical devices. They are the best especially for covering conscious electronics  because of the EMI shielding and heat-consuming quality of aluminum. Another reason why die-cast aluminum enclosures are prioritized by some people is that they can be ordered with a mar-resistant powder coat finish in a choice of colors.

Steel Sheet Metal Enclosures

steel sheet metal enclosure
Source: Pinterest

Steel sheet metal enclosures are also a good material to make NEMA 4X since they will give you a better display compared to die-cast aluminum. Steel sheet metal enclosures also provide the same advantages of heat dissipation, EMI shielding, and compression strength just like die-cast aluminum. 

Most people will go for sheet metal enclosures that are more durable and also heavier than those made of other materials. They are economical when purchased in bulk and costly when purchased in low quantities. Stainless steel enclosures can as well come in as an option since they are durable and they don’t rust easily.

Fiberglass enclosures

fiberglass enclosure
Source: Pinterest

 Fiberglass enclosures are also a good material to make NEMA 4X since they offer many of the same advantages as plastic enclosures. Fiberglass enclosures are lightweight and have the ability to resist corrosion. Furthermore, fiberglass is durable than ABS or polycarbonate plastic and even stronger than steel of the same weight. 

Fiberglass has the ability to operate in very high temperatures. This makes them the ideal material for outdoor NEMA 4X enclosures. Fiberglass is quite costly but it will serve you efficiently.

Advantages of NEMA 4X Enclosure

NEMA 4X Enclosure has a good number of advantages let us just have a quick look at a few advantages:


NEMA 4X enclosures provide easy access ability to electrical components and wiring connections. The enclosure will also protect electrically charged wires from exposure by encasing them.

Weather Proof

NEMA 4X enclosures are well designed to fit in outdoor applications with their watertight design. they will perfectly seal out any external weather components when properly installed. This will ensure that there is no water entry that may lead to electrical shorting.

Safeguard Against corrosion

Anywhere with the presence of excess moisture, corrosion is a relatively obvious issue. Surprisingly, since NEMA 4X enclosures are always weatherproof, they can easily prevent any condensation from damaging any electrical components within the enclosure. Just make sure your enclosure is installed well to prevent any drops of water from getting inside.

Prevent Electrical Shorts

Sometimes water can creep in easily irrespective of the location, may be due to improper installation of the enclosure or the area where the enclosure is installed might receive frequent heavy rainfall. The NEMA 4X enclosure will provide maximum protection to elements against short circuits and loose connections.


Since NEMA 4X enclosures are designed as weatherproof, they are effectively insulated using a compound that provides the best insulating properties. Normally, these enclosures are made of outdoor covers designed for wet or damp locations, which is dependent on where it is used. In addition, these enclosures are watertight hence they can effectively offer protection against sprayed water.


To make it clear, Nema Enclosures Manufacturing doesn’t provide Explosion Proof Enclosure. They only provide weatherproof enclosures. Choose the right enclosure to satisfy your needs and not just to save on cost. Consider quality enclosure always since the counterfeits one might leak in water and cause more damage. Also make sure your enclosure is safeguarded, NEMA 4X enclosure will get you sorted.

At NEW york engineering, they provided electrical enclosures designed to customers’ satisfaction. They have ideal enclosures for both indoor and outdoor with waterproof ability. Are you still looking for the best NEMA 4X enclosure? Just contact us and speak to our dedicated customer care, all your questions will be answered, and get more guidance about the enclosures.

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