Same Day Shipping 

On in-stock orders placed by 3:00pm EST (Monday-Friday)

RoHS & Reach Compliant 1-440-934-0444

Resources
Contact
My Cart
Toggle Nav Polycase Logo Toggle Nav
Menu
Account
Search
Advanced Search

Electrical Enclosures & Boxes

Outdoor electrical enclosures from Polycase are weatherproof, making them an ideal solution for industrial outdoor applications. Our electrical enclosure boxes are UL & cUL Listed and designed to protect sensitive equipment in harsh environments, meeting and exceeding many NEMA and IP ratings. Available in a variety of sizes, styles, and materials, it’s easy to find the perfect solution for any outdoor electrical application. Outdoor electrical boxes are available in stainless steel, carbon steel, aluminum, and polycarbonate, making them ideal for a wide range of industries such as automation, alternative energy, telecommunications, and more.

Read our guide on common types of electrical enclosures, or find more information below.

Choosing an Electrical Enclosure for Your Application

An electrical enclosure is often the only thing protecting sensitive electrical and electronic equipment against water, dust, corrosive substances, or other environmental hazards. That’s why it’s so important to thoroughly evaluate an enclosure that you’re using for any demanding application, whether it’s an electrical junction box for outdoor receptacles or a control panel enclosure for a critical piece of machinery.

So, how can you find the enclosure that’s right for your application? These are some key factors you should be familiar with:

  • Weatherproofing Features: Enclosures for outdoor applications should include weatherproofing features such as a waterproof/dustproof gasket and mated parts to keep out water and particulates.
  • IP Rating or NEMA Rating: These two systems rate key performance factors such as (depending on the system) water protection, dust protection and corrosion resistance. Look for a UL Listed rating to ensure the enclosure has been independently tested to meet its rating.
  • Material: Choose an outdoor enclosure made from durable materials like aluminum or stainless steel, or non-metallic enclosures made from polycarbonate and/or fiberglass-reinforced polycarbonate. These offer more reliable performance than common alternatives like PVC.
  • Security: Many outdoor enclosures need to be secured against unauthorized access. Look for features like a built-in padlock hasp or a locking hinged cover if security is a factor for your application.

Shop Polycase’s Electrical Enclosure Selection

For over 65 years, Polycase has provided high-quality enclosures at reasonable prices to the electrical and electronics industries. Today, we’re proud to offer our best-ever selection of electrical enclosures, including:

  • IP and NEMA enclosures with ratings verified by UL
  • Numerous configurations available, including optional wall-mount flanges, hinged covers, and built-in knockouts
  • Wide range of material options including polycarbonate, aluminum, and stainless steel enclosures
  • Incredibly fast and easy enclosure customization, with instant quotes on CNC machining and digital printing services
  • Accessories available for protecting conductors and maintaining ingress ratings

Browse our selection of outdoor enclosures here and find one that’s perfect for your application. To find what you need more quickly, use the filter options and select the characteristics you’re looking for.

273 Items

/
All
Sort By
Filter By
View as Grid List
Page
1 of 13
  1. plastic junction box enclosure with clear lid
    Add to Compare Add to Wish List
    ML-57F Weatherproof NEMA Enclosure
    As low as $15.79 per unit
    Internal: 8.2" x 4.7" x 1.9"
    209 x 121 x 49 mm
    External: 8.7" x 5.2" x 2.2"
    222 x 133 x 57 mm
    Material: Polycarbonate
  2. Large waterproof box
    Add to Compare Add to Wish List
    HP-151106 Waterproof Electrical Box
    As low as $61.60 per unit
    Internal: 14" x 10" x 6.0"
    374 x 273 x 152 mm
    External: 15" x 11" x 6.3"
    388 x 287 x 161 mm
    Material: Polycarbonate
  3. Polycase waterproof case
    Add to Compare Add to Wish List
    ZQ-141204 Submersible Electrical Enclosure
    As low as $58.67 per unit
    Internal: 14" x 12" x 4.8"
    359 x 308 x 123 mm
    External: 14" x 12" x 5.2"
    370 x 319 x 133 mm
    Material: Polycarbonate
  4. plastic junction box with hinged cover, gray polycarbonate
    Add to Compare Add to Wish List
    WQ-51 Weatherproof Box
    As low as $29.10 per unit
    Internal: 9.1" x 5.2" x 4.8"
    232 x 134 x 124 mm
    External: 10" x 6.3" x 5.1"
    260 x 160 x 130 mm
    Material: Polycarbonate
  5. ZH-141406
    Add to Compare Add to Wish List
    ZH-141406 Hinged NEMA Enclosure
    As low as $73.27 per unit
    Internal: 13" x 13" x 6.8"
    346 x 346 x 173 mm
    External: 14" x 14" x 7.2"
    371 x 371 x 183 mm
    Material: Polycarbonate
  6. ML-34F*15 Gray outdoor waterproof enclosure rated NEMA 4x and NEMA 6P - 4.53 x 3.56 x 2.25 inches
    Add to Compare Add to Wish List
    ML-34F Outdoor NEMA Enclosure
    As low as $8.67 per unit
    Internal: 4.1" x 3.1" x 1.9"
    105 x 79 x 49 mm
    External: 4.5" x 3.5" x 2.2"
    115 x 90 x 57 mm
    Material: Polycarbonate
  7. HP-070504-03
    Add to Compare Add to Wish List
    HP-070504 NEMA Electrical Box
    As low as $18.86 per unit
    Internal: 6.6" x 4.6" x 4.0"
    169 x 118 x 102 mm
    External: 7.2" x 5.2" x 4.2"
    183 x 133 x 109 mm
    Material: Polycarbonate
  8. HD-44FMMT Black NEMA 6P rated waterproof polycarbonate enclosure for electronics - 4.63 x 4.63 x 2.36 inches
    Add to Compare Add to Wish List
    HD-44F NEMA Polycarbonate Enclosure
    As low as $7.64 per unit
    Internal: 4.1" x 4.1" x 1.9"
    106 x 106 x 48 mm
    External: 4.6" x 4.6" x 2.3"
    118 x 118 x 60 mm
    Material: Polycarbonate
  9. HP-130906-03
    Add to Compare Add to Wish List
    HP-130906 Weatherproof Electrical Box
    As low as $49.85 per unit
    Internal: 12" x 8.7" x 6.0"
    324 x 222 x 152 mm
    External: 13" x 9.2" x 6.3"
    337 x 236 x 161 mm
    Material: Polycarbonate
  10. AN-15P Natural diecast aluminum enclosure for electronics - 5.91 x 2.52 x 1.45 inches
    Add to Compare Add to Wish List
    AN-15P Diecast Aluminum NEMA Enclosure
    As low as $12.68 per unit
    Internal: 5.5" x 2.1" x 1.1"
    140 x 55 x 29 mm
    External: 5.9" x 2.5" x 1.4"
    150 x 64 x 37 mm
    Material: Aluminum
  11. ZQ-121206
    Add to Compare Add to Wish List
    ZQ-121206 Electrical Junction Box
    As low as $58.21 per unit
    Internal: 11" x 11" x 6.8"
    296 x 296 x 173 mm
    External: 12" x 12" x 7.2"
    320 x 320 x 183 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. ML-36F duo image
    Add to Compare Add to Wish List
    ML-36F Outdoor NEMA Enclosure
    As low as $11.01 per unit
    Internal: 6.0" x 2.8" x 2.5"
    154 x 71 x 65 mm
    External: 6.5" x 3.2" x 3.3"
    165 x 83 x 86 mm
    Material: Polycarbonate
  14. HP-110706
    Add to Compare Add to Wish List
    HP-110706 IP66 Hinged Electrical Box
    As low as $44.45 per unit
    Internal: 10" x 6.7" x 6.0"
    273 x 171 x 152 mm
    External: 11" x 7.2" x 6.3"
    287 x 185 x 161 mm
    Material: Polycarbonate
  15. ZH-141204
    Add to Compare Add to Wish List
    ZH-141204 NEMA-Rated Hinged Junction Box
    As low as $62.02 per unit
    Internal: 14" x 12" x 4.8"
    356 x 305 x 122 mm
    External: 14" x 12" x 5.2"
    370 x 319 x 133 mm
    Material: Polycarbonate
  16. Enclosure
    Add to Compare Add to Wish List
    WQ-70 Hinged Weatherproof Enclosure
    As low as $62.65 per unit
    Internal: 12" x 12" x 5.6"
    313 x 313 x 143 mm
    External: 13" x 13" x 5.9"
    350 x 350 x 152 mm
    Material: Polycarbonate
  17. SG-17-02 Gray plastic electrical box for outdoor applications - 3.31 x 3.23 x 3.31 inches
    Add to Compare Add to Wish List
    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
  18. HP-100604-03
    Add to Compare Add to Wish List
    HP-100604 Low-Profile NEMA Enclosure
    As low as $26.96 per unit
    Internal: 9.6" x 5.6" x 4.0"
    245 x 143 x 102 mm
    External: 10" x 6.2" x 4.2"
    260 x 158 x 109 mm
    Material: Polycarbonate
  19. Polycase NEMA enclosure
    Add to Compare Add to Wish List
    ZQ-141406 Electrical Junction Box
    As low as $69.52 per unit
    Internal: 13" x 13" x 6.8"
    346 x 346 x 173 mm
    External: 14" x 14" x 7.2"
    371 x 371 x 183 mm
    Material: Polycarbonate
  20. Polycase junction box
    Add to Compare Add to Wish List
    HP-070705 IP66 Junction Box
    As low as $24.76 per unit
    Internal: 6.7" x 6.7" x 5.5"
    172 x 172 x 140 mm
    External: 7.2" x 7.2" x 5.7"
    183 x 183 x 147 mm
    Material: Polycarbonate
  21. ML-92F Duo Image
    Add to Compare Add to Wish List
    ML-92F Weatherproof NEMA Enclosure
    As low as $44.57 per unit
    Internal: 11" x 8.5" x 3.9"
    294 x 217 x 99 mm
    External: 12" x 9.0" x 4.2"
    305 x 229 x 108 mm
    Material: Polycarbonate
  22. Polycase hinged waterproof electrical enclosure
    Add to Compare Add to Wish List
    HP-060504 IP66 Weatherproof Box
    As low as $16.74 per unit
    Internal: 5.6" x 4.6" x 4.0"
    143 x 118 x 102 mm
    External: 6.2" x 5.2" x 4.2"
    158 x 133 x 109 mm
    Material: Polycarbonate
  23. WQ-77-02
    Add to Compare Add to Wish List
    WQ-77 Hinged Weatherproof Enclosure
    As low as $124.62 per unit
    Internal: 21" x 14" x 6.8"
    556 x 357 x 173 mm
    External: 23" x 15" x 7.1"
    602 x 400 x 182 mm
    Material: Polycarbonate
  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

273 Items

/
All
Sort By
Filter By
View as Grid List
Page
1 of 13

You added product to the Comparison List

Close
Shop By
Category
Material
Indoor/Outdoor Use
NEMA Rating
IP Equivalent
Color
Clear Cover
Series
Size
Inches Millimeters
Length
+/-
min - max
Width
+/-
min - max
Height
+/-
min - max
Length
+/-
Width
+/-
Height
+/-
Please Fill Input Values
Apply
Compare Products
  1. Remove This Item
Compare
Clear All
You have no items to compare.

Customization Services

outdoor electrical enclosure

CNC Machining

Guaranteed accuracy, no scrap, with 1-3 week lead times; saving you time and money. It's that simple.
Learn More

Digital Printing

Enhance your product, impress your customers with high-quality graphics printed directly on the enclosure.
Learn More

Let us take your enclosure project to the next level.

Get Instant quote

We use cookies to ensure that we give you the best experience on our website. To learn more, go to the Privacy Page.

Close