Industrial Enclosures

Industrial electrical enclosures do one simple but important job: they protect the equipment that keeps your operation running. Whether it’s dust, moisture, heat, or just the wear and tear of everyday use, the right enclosure keeps your electrical components safe and working the way they should.
At RSP Supply, we carry enclosures built to handle just about any environment. You’ll find options made from carbon steel, stainless steel, aluminum, polycarbonate, and fiberglass each with its own strengths depending on where and how it’s used. Stainless steel holds up great against corrosion, polycarbonate is lightweight but tough, and fiberglass can take on harsh chemicals without breaking down.
We also offer all the enclosure accessories that make installation easier; things like mounting panels, cable management, thermal management, and other enclosure accessories. If you need something custom, we can help you find an enclosure that fits your specs for size, mounting, and application. We also offer in-house enclosure modifications with our state of the art nVent Steinhauer ModCenter machine, with turnaround times in as little as 24 hours!
Browse our selection of electrical enclosures today and find one built to protect your equipment for the long haul.
FAQs About Industrial Electrical Enclosures
Q: Can I find electrical enclosures and accessories designed for the oil and gas industry where security is critical?
A: Yes. RSP Supply offers a full line of electrical enclosures and enclosure accessories built for harsh, high-risk environments like oil and gas. These enclosures are designed to handle extreme conditions and can include features like locking panels, corrosion-resistant materials, and NEMA-rated protection for added security.
Q: What materials are best for outdoor electrical enclosures?
A: For outdoor use, stainless steel and polycarbonate enclosures are top choices. Stainless steel resists corrosion and impact, while polycarbonate is lightweight, UV-resistant, and durable in changing weather. Both materials provide long-lasting protection for electrical components exposed to the elements.
Q: What’s the difference between NEMA and IP ratings on electrical enclosures?
A: Both NEMA and IP ratings describe how well an enclosure protects against dust, water, and other environmental factors. NEMA ratings are more common in North America, while IP ratings are used internationally. Checking these ratings ensures your electrical enclosure meets the protection level your application needs.
Q: What accessories should I use with my electrical enclosure?
A: Helpful accessories include mounting panels, thermal management components like fans or heaters, and other add-ons that make installation, organization, and maintenance easier. These upgrades help keep your equipment safe and performing reliably.
Q: Which industries use RSP Supply’s electrical enclosures?
A: Our enclosures are used across many industries including oil and gas, water treatment, manufacturing, HVAC, and automation. Each sector requires rugged protection and reliable performance, which our enclosures are designed to provide.
Enclosure Selection Basics
Electrical enclosures or electric cabinets are designed to house electrical components. Their main function is to protect the components, as well as to protect the operators from electrical hazards. Enclosures are typically made of solid plastics, fiberglass and metal materials, such as carbon steel, stainless steel and aluminum. These materials ensure that the enclosures can withstand harsh environments, protecting the components inside from various external factors.
One of the most important things to consider when selecting an electrical enclosure is the NEMA rating. NEMA stands for National Electrical Manufacturer Association. They have developed a rating system which determines the types of environments an electrical enclosure can be used in.
NEMA 1 and a NEMA 12 enclosures
Both of these enclosures are intended for indoor use only. They are both dust resistant. The NEMA 12 enclosure is rated for damp environments. The NEMA 1 is rated only for dry environments.
NEMA 4 and NEMA 4X enclosures
Both of these enclosures can be used indoors as well as outdoors. They are both dust resistant. They are also water resistant and corrosion resistant. NEMA 4X has an extra layer of corrosion resistance. In addition to these, hazardous location enclosures are designed to protect electrical controls in areas prone to explosions or other hazards.
NEMA 7 enclosures
This is a more specific type of enclosure that is rated for use in hazardous environments. It is rated to contain an explosion within the enclosure and not cause any sort of external hazard.
Size
When selecting the size of an enclosure, it is important to consider the following: how much space will the electrical components occupy, how much space is needed around each component, is there enough room to run all of the wires and how much space is needed outside of the enclosure?
Temperature
When selecting an enclosure, it is important to consider both the ambient temperature and the temperature that is generated inside of the enclosure. When an enclosure is located outside in direct sunlight, that heat can be transferred inside the enclosure. Also, each component inside of the enclosure generates a certain amount of heat.