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CNC Machining & Graphics | Instant online pricing on custom enclosures that ship in as little as 1 week. View Capabilities
The NEMA rating system is used in North American markets to rate the protective performance of electrical enclosures. Using a numerical scale, the NEMA system rates an enclosure’s level of protection against the ingress of harmful environmental factors like windblown dust, splashing water, corrosion and more. See our guide to NEMA ratings to learn more about ratings.
Key Features of NEMA 4 Enclosures
- Watertight protection against rain, snow, and hose-directed water
- Suitable for both indoor and outdoor electrical applications
- Durable construction for use in harsh environments
Available Materials
Choose the right material for your application:
Polycarbonate plastic – lightweight and corrosion-resistant
Aluminum – strong, lightweight, and naturally corrosion-resistant
Steel – durable and cost-effective for general use
Stainless steel – superior corrosion resistance for demanding environments
Styles and Configurations
Our selection of NEMA 4 enclosure boxes includes a variety of styles to meet different installation needs:
Junction boxes
Wall-mount and specialty configurations
With a wide range of sizes, materials, and mounting options, it’s easy to find the right NEMA 4 enclosure from Polycase.
CNC Machining
Cutouts for cable entries, display windows and more - expertly handled at our Ohio facility for a wide range of applications.
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Eliminate the headache of applying adhesive labels - we offer a long-term solution that looks professional while saving you time and money.
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