Manufactured in Texas. UL508A Listed. Built to Spec. Request a Quote Today

Engineering Excellence.
Industry-Leading Lead Times.

Electrical Enclosures Built Around Your Equipment

NEMA Enclosures manufactures custom and standard electrical enclosures designed to meet your project’s specifications, certifications, and deadlines. From one-off prototypes to large-scale builds, we engineer what others won’t.

4,000+

STANDARD
ENCLOSURE DESIGNS

750k+

CUSTOM ENCLOSURES
FABRICATED

6

WEEK AVERAGE
LEAD TIME ON CUSTOM

Standard Enclosure

Choose From Over 4,000 Existing NEMA Models

Browse and buy enclosures directly on our website using our Enclosure Finder. All items are made-to-order with industry-leading turnaround times.

Or Build a Custom Enclosure with Design A Box

Designed to your exact specifications and certifications. Whether it’s a single unit or many, we can build it around your requirements.

Meeting Your Needs, From Design to Delivery

Our Custom Enclosure Process

Enclosure Project Assessment

We review your specs, certifications, and installation environment to ensure the design is build-ready and compliant.

Do you have a design?

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1

Design & Approval

You’ll receive detailed approval drawings. We revise as needed and proceed only after final sign-off.

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2

Enclosure Manufacturing

Once approved, we begin production using advanced sheet metal cutting, forming, and finishing equipment.

Do you have a design?

yes No

We can help you!
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3

Inspection, Testing, & Deployment

Quality checks are performed at every stage. We offer non-destructive testing (NDE) services like lift testing and dye penetrant inspections. After inspection and testing, we package your enclosure for safe transit. Custom pallets and containers can be provided.

4
Custom Enclosures

Custom Enclosures for Your Specifications

Specializing in low volume, high mix projects, we are dedicated to meet your requirements and exceed expectations without sacrificing product quality. As a non-stock facility, we can seamlessly build custom enclosures to meet your exact specifications even if your project only requires 1 unit. We are ready to help you thru the design and manufacture of your electrical enclosure to your exact requirements but with our experienced Estimating and Engineering team, we also offer design insights along with assisting in removing any potential obstacles.

Engineering Confidence One Enclosure at a Time
Engineering Confidence One Enclosure at a Time
Precision-Built. Timeline-Driven.

Engineering Confidence One Enclosure at a Time

Our proprietary process blends precision automation with real-time customer collaboration, so your drawings don’t sit in a queue. From quote to cut to shipping, we’re structured to support fast-moving projects without sacrificing compliance or accuracy.

Global Protection Ratings

Electrical Enclosure Manufacturer

Nema Enclosures manufactures high quality environmentally rated industrial NEMA enclosures manufactured from powder coated carbon steel, 5052 aluminum and 304 or 316L stainless steel. We offer over 4000 already designed standard enclosure configurations with a free online customization tool. This tool allows us to go from online drawing configuration to manufacturing as soon as your file is complete.

We are a custom industrial enclosures manufacturer who specializes in low volume high mix make to order enclosures. Whether your need is for 1 or 100 we are ready to help you thru the design and manufacture of your electrical enclosure to your exact requirements. Along with the ability to make to order we also provide third party certification for enclosures to be used in any part of the world. We offer UL and C-UL listed products for North America, ATEX for the European Union and IECEx for the rest of the world. Our certifications are written so that there are no limitations on size, materials or options. Additionally most of our customization requirements such as gland plates, view window and door on door enclosures maintain all of these certifications.

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NEMA Enclosure Ratings

The National Electrical Manufacturer Association (NEMA) uses a standard rating system that defines the types of environments in which an electrical enclosure can be used, and frequently signifies a fixed enclosure's ability to withstand certain environmental conditions.

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IP Enclosures

At Nema Enclosures, we strictly adhere to the International Electrotechnical Commission standardized international (or Ingress) Protection Code, which defines an enclosure's rating.

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IECEX Enclosures Logo

IECEX Enclosures

Used in indoor or outdoor applications where a potential explosive hazard exists, and third-party approval of the enclosure integrity and design is required.

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ATEX Enclosures

Used in indoor or outdoor applications where a potential explosive hazard exists, and third-party approval of the enclosure integrity and design is required.

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UL Listed Enclosures Logo

UL Listed Enclosures

Nema Enclosures manufactures electrical enclosures with a UL Listing. We can fabricate the following types; 1, 3R, 4, 4X, 12, & 12K. Underwriters Laboratories Inc. (UL) is a privately owned and operated, independent third party product safety testing and certification organization with more than 1,000 standards for safety.

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C-UL Enclosures

Nema Enclosures offers C-UL listed enclosures which are in compliance with Canadian standards C22.2, No. 14-M95. C-UL is an independent third-party safety and testing certification organization. These standards are essential to ensure the conformity of safety and improve the quality of the enclosures we produce.

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Find Your Enclosure

Have a question or spec in mind?

Whether you need a standard enclosure fast or a fully custom solution built to your exact requirements, our team is here to help. Reach out today and let’s build the best enclosure for your application.