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Outdoor Enclosures & Boxes

Outdoor enclosures offer a premium solution for applications in need of a weatherproof NEMA box. UL & cUL Listed and meeting a variety of testing requirements, outdoor NEMA enclosures are certified rainproof and leakproof to ensure components are protected even in harsh environments. Outdoor weatherproof boxes are made from high-quality, durable materials that are UV-stable and corrosion-resistant. Outdoor enclosures are available in plastic and metal, and come in a variety of styles and sizes to suit virtually any project’s needs. Outdoor weatherproof boxes serve a range of industries such as telecommunications, oil and gas, alternative energy, marine, and wastewater treatment.

Check out our guide to understanding all your options when it comes to outdoor enclosures, or read more below for a quick-start primer on choosing a weatherproof enclosure that’s right for your application.

What to Look For in an Outdoor Enclosure

The most important features of an outdoor enclosure typically include some combination of the following:

  • Resistance to harsh conditions such as wet weather, windblown particles, UV radiation, and/or corrosion
  • NEMA and/or IP rated for reliable protection against environmental hazards
  • Protective attributes such as a waterproof silicone gasket
  • Made from sturdy materials like stainless steel, polycarbonate, or aluminum
  • Features such as wall mount flanges or pole mount kits for secure attachment
  • Options for customization include adding cutouts or graphics printed on the enclosure

Since outdoor conditions can vary widely by application, it’s important to first consider the expected conditions your enclosure will need to withstand. Our outdoor enclosure guide will help you examine the relevant factors and make the best choice for your application.

Outdoor Enclosure Solutions from Polycase

Polycase proudly offers a wide selection of weatherproof and waterproof enclosures rated for outdoor use. Our lineup includes enclosures with commonly used ratings like NEMA 4X and NEMA 3R, all tested and independently verified through UL. Whether you’re in search of an outdoor WiFi router housing or an industrial junction box, our selection has the choices you need.

We’ve also made it easy to get exactly the features and protection you need from your outdoor electrical enclosure. It’s quick and simple to customize your enclosure through Polycase’s in-house customization services. Our facilities can perform precision CNC machining on your enclosure box to create a huge variety of cutouts, vents, and threaded holes, and our digital printing creates vivid and durable custom graphics directly on the enclosure.

Furthermore, we offer a variety of accessories to level up your enclosure’s protection. These include cable glands that make it easy to waterproof cable and connector pass-throughs, vent plugs to manage moisture inside your enclosure, and many others. We also offer interior accessories like DIN rails and mounting plates that simplify the process of mounting internal components.

Browse our complete selection of outdoor enclosures on this page. Use the filters on the left side to help you sort and search for your perfect enclosure, or get an instant quote for your customized enclosure now.

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  1. AN-11F Natural diecast aluminum enclosure with flanges for wall mounting - 1.97 x 1.77 x 1.12 inches
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    AN-11F Diecast Aluminum NEMA Enclosure
    As low as $13.63 per unit
    Internal: 1.7" x 1.5" x 0.9"
    43 x 38 x 25 mm
    External: 1.9" x 1.7" x 1.1"
    50 x 45 x 28 mm
    Material: Aluminum
  2. AN-11P Natural diecast aluminum enclosure for electronics - 1.97 x 1.77 x 1.12 inches
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    AN-11P Diecast Aluminum NEMA Enclosure
    As low as $5.91 per unit
    Internal: 1.7" x 1.5" x 0.9"
    43 x 38 x 25 mm
    External: 1.9" x 1.7" x 1.1"
    50 x 45 x 28 mm
    Material: Aluminum
  3. AN-18F Natural diecast aluminum enclosure with flanges for wall mounting - 2.19 x 1.61 x 1.22 inches
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    AN-18F Diecast Aluminum NEMA Enclosure
    As low as $13.72 per unit
    Internal: 1.8" x 1.3" x 1.0"
    46 x 33 x 27 mm
    External: 2.1" x 1.6" x 1.2"
    56 x 41 x 31 mm
    Material: Aluminum
  4. AN-18P Natural diecast aluminum enclosure for electronics - 2.19 x 1.61 x 1.22 inches
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    AN-18P Diecast Aluminum NEMA Enclosure
    As low as $6.17 per unit
    Internal: 1.8" x 1.3" x 1.0"
    46 x 33 x 27 mm
    External: 2.1" x 1.6" x 1.2"
    56 x 41 x 31 mm
    Material: Aluminum
  5. WC-20
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    WC-20 Outdoor Enclosure with Clear Cover
    As low as $5.74 per unit
    Internal: 1.9" x 2.2" x 1.1"
    50 x 56 x 30 mm
    External: 2.2" x 2.5" x 1.3"
    58 x 64 x 35 mm
    Material: Polycarbonate
  6. WC-20F
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    WC-20F Outdoor Enclosure with Clear Cover
    As low as $5.48 per unit
    Internal: 1.9" x 2.2" x 1.1"
    50 x 56 x 30 mm
    External: 2.2" x 2.5" x 1.3"
    58 x 64 x 35 mm
    Material: Polycarbonate
  7. WP-20
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    WP-20 Polycarbonate NEMA Enclosure
    As low as $5.59 per unit
    Internal: 1.9" x 2.2" x 1.1"
    50 x 56 x 30 mm
    External: 2.2" x 2.5" x 1.3"
    58 x 64 x 35 mm
    Material: Polycarbonate
  8. WP-20F
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    WP-20F Polycarbonate NEMA Enclosure
    As low as $5.21 per unit
    Internal: 1.9" x 2.2" x 1.1"
    50 x 56 x 30 mm
    External: 2.2" x 2.5" x 1.3"
    58 x 64 x 35 mm
    Material: Polycarbonate
  9. AN-01F Natural diecast aluminum enclosure with flanges for wall mounting - 2.52 x 2.28 x 1.38 inches
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    AN-01F Diecast Aluminum NEMA Enclosure
    As low as $6.25 per unit
    Internal: 2.1" x 1.8" x 1.2"
    54 x 47 x 30 mm
    External: 2.5" x 2.2" x 1.3"
    64 x 58 x 35 mm
    Material: Aluminum
  10. AN-01P Natural diecast aluminum enclosure for electronics - 2.52 x 2.28 x 1.38 inches
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    AN-01P Diecast Aluminum NEMA Enclosure
    As low as $5.91 per unit
    Internal: 2.1" x 1.8" x 1.2"
    54 x 47 x 30 mm
    External: 2.5" x 2.2" x 1.3"
    64 x 58 x 35 mm
    Material: Aluminum
  11. SK-11-02 Gray outdoor NEMA rated electrical junction box with knockouts - 2.56 x 2.56 x 2.24 inches
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    SK-11 Enclosure with Knockouts
    As low as $8.51 per unit
    Internal: 2.2" x 2.2" x 1.7"
    56 x 56 x 45 mm
    External: 2.5" x 2.5" x 2.2"
    65 x 65 x 57 mm
    Material: Polycarbonate
  12. promo card - ex

    SURFACE MOUNTING ELECTRICAL BOXES

    Made in the USA, the HD Series offers premium protection against all weather conditions, and unwanted tampering. With hidden cover screws, and convenient surface-mounting flanges, this series is a go-to for outdoor electronics.

    SHOP NEMA RATED HD SERIES
  13. Waterproof gray plastic enclosure for outdoor use
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    HD-22F NEMA Polycarbonate Enclosure
    As low as $3.88 per unit
    Internal: 2.1" x 2.1" x 1.3"
    55 x 55 x 34 mm
    External: 2.6" x 2.6" x 1.6"
    67 x 67 x 41 mm
    Material: Polycarbonate
  14. ML-22F*15 Gray outdoor waterproof enclosure rated NEMA 4x and NEMA 6P - 2.63 x 2.63 x 1.63 inches
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    ML-22F Outdoor NEMA Enclosure
    As low as $5.80 per unit
    Internal: 2.2" x 2.2" x 1.3"
    58 x 58 x 35 mm
    External: 2.6" x 2.6" x 1.6"
    67 x 67 x 41 mm
    Material: Polycarbonate
  15. AN-19F Natural diecast aluminum enclosure with flanges for wall mounting - 3.13 x 2.93 x 2.05 inches
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    AN-19F Diecast Aluminum NEMA Enclosure
    As low as $18.49 per unit
    Internal: 2.7" x 2.5" x 1.9"
    69 x 64 x 49 mm
    External: 3.1" x 2.9" x 2.0"
    80 x 74 x 52 mm
    Material: Aluminum
  16. AN-19P Natural diecast aluminum enclosure for electronics - 3.13 x 2.93 x 2.05 inches
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    AN-19P Diecast Aluminum NEMA Enclosure
    As low as $10.49 per unit
    Internal: 2.7" x 2.5" x 1.9"
    69 x 64 x 49 mm
    External: 3.1" x 2.9" x 2.0"
    80 x 74 x 52 mm
    Material: Aluminum
  17. WC-31
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    WC-31 Outdoor Enclosure with Clear Cover
    As low as $8.92 per unit
    Internal: 2.9" x 2.8" x 1.9"
    74 x 72 x 49 mm
    External: 3.2" x 3.1" x 2.1"
    82 x 80 x 55 mm
    Material: Polycarbonate
  18. WC-31F
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    WC-31F Outdoor Enclosure with Clear Cover
    As low as $9.36 per unit
    Internal: 2.9" x 2.8" x 1.9"
    74 x 72 x 49 mm
    External: 3.2" x 3.1" x 2.1"
    82 x 80 x 55 mm
    Material: Polycarbonate
  19. WP-31
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    WP-31 Polycarbonate NEMA Enclosure
    As low as $8.92 per unit
    Internal: 2.9" x 2.8" x 1.9"
    74 x 72 x 49 mm
    External: 3.2" x 3.1" x 2.1"
    82 x 80 x 55 mm
    Material: Polycarbonate
  20. WP-31F
    Add to Compare Add to Wish List
    WP-31F Polycarbonate NEMA Enclosure
    As low as $9.36 per unit
    Internal: 2.9" x 2.8" x 1.9"
    74 x 72 x 49 mm
    External: 3.2" x 3.1" x 2.1"
    82 x 80 x 55 mm
    Material: Polycarbonate
  21. SG-10-02 Gray polycarbonate electrical enclosure - 3.31 x 3.23 x 2.17 inches
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    SG-10 Weatherproof NEMA Enclosure
    As low as $13.31 per unit
    Internal: 2.9" x 2.8" x 1.8"
    75 x 73 x 47 mm
    External: 3.3" x 3.2" x 2.1"
    84 x 82 x 55 mm
    Material: Polycarbonate
  22. SG-17-02 Gray plastic electrical box for outdoor applications - 3.31 x 3.23 x 3.31 inches
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    SG-17 Weatherproof NEMA Enclosure
    As low as $14.72 per unit
    Internal: 2.9" x 2.8" x 3.0"
    74 x 72 x 77 mm
    External: 3.3" x 3.2" x 3.3"
    84 x 82 x 84 mm
    Material: Polycarbonate
  23. Polycase aluminum electrical enclosure
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    AN-00F Diecast Aluminum NEMA Enclosure
    As low as $5.91 per unit
    Internal: 3.0" x 0.9" x 0.9"
    78 x 24 x 25 mm
    External: 3.5" x 1.4" x 1.1"
    90 x 36 x 30 mm
    Material: Aluminum
  24. promo card - ex

    SURFACE MOUNTING ELECTRICAL BOXES

    Made in the USA, the HD Series offers premium protection against all weather conditions, and unwanted tampering. With hidden cover screws, and convenient surface-mounting flanges, this series is a go-to for outdoor electronics.

    SHOP NEMA RATED HD SERIES

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Extruded aluminum enclosure with vibrant digital printing graphics and machining

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Cutouts for cable entries, display windows and more - expertly handled at our Ohio facility for a wide range of applications.
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