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When it comes to electrical components like conduit, enclosures, switches, and relays, these days it pays to look beyond your local supplier. Through working with some of the top names in industrial supply over the past 20 years, the founders of CIS have been able to cultivate some amazing relationships with manufacturers. Today, we pass the savings we get on liquid handling and electrical components on to our customers.

We are proud to be able to offer top of the line non-metallic enclosures and accessories at a competitive rate. Enclosures play an important role in many industries from waste water treatment to chemical plants and everything in between. The protection of electronic devices is extremely important when the electronic devices are required to be functional outdoors where the weather and conditions are often unpredictable. With the help of electronic enclosures and the accessories that accompany them, it is easy to prolong the lifespan of the equipment and devices that are so important to the success of different industries.

Non-Metallic Enclosures

Enclosures are used to protect sensitive electronic equipment from harmful elements, such as liquid and dirt. Our non-metallic NEMA 4X rated enclosures are durable against the harshest of environments, designed to thoroughly protect without blocking wireless signals. We offer both polycarbonate and fiberglass enclosures, as well as accessories of various sizes and materials.


This type of enclosure is ideal for guarding against both temperature and impact. They are useful for a number of applications and can be easily personalized with the help of mounting options or other accessories.


The fiberglass enclosures protect electronic devices and equipment from the intense exposure that can come from prolonged periods spent outdoors.  The cost effective, easily modifiable enclosures also protect from corrosion and chemicals just as well as the more expensive stainless steel options.


The accessories we provide can be easily used to modify and customize both polycarbonate and fiberglass enclosures. We have everything from specialized kits to individual additions that provide endless options, allowing you to ensure that your enclosure meets your specific needs!

Electrical equipment and components are a part of almost every commercial or industrial job these days. That means everything from conduit to surge protectors have to be ready to go to complete the job. Luckily, Commercial Industrial Supply is increasing our electrical side to better accommodate our customers. Our focus is on getting you the very best pricing on coated conduit, fittings, enclosures, and more. We periodically update our stock and add new products, so check back regularly!