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

NEMA 3 Enclosures

NEMA 3 boxes and enclosures protect electrical equipment in indoor and outdoor settings. Enclosures meeting NEMA Type 3 standards are designed to withstand windblown dust, rain, sleet and sometimes ice formation (depending on which version of the NEMA 3 standard they meet). Our NEMA 3 enclosures are molded from impact-resistant polycarbonate plastic and we have an array of sizes to choose from. Styles include a hinged or screw-on cover with the ability to surface mount or pole mount enclosures.

A full line of NEMA accessories is available to complete your NEMA 3 enclosure or junction box solution. Learn more about NEMA 3 enclosures below.

NEMA 3 Enclosures: Basic Facts

The National Electrical Manufacturers Association maintains the NEMA rating scale to provide information on the protective qualities of electrical enclosures. (Our complete guide to the NEMA rating system includes a full rundown of each NEMA enclosure type.)

NEMA 3 is one of the most common ratings in enclosures designed for outdoor use. Most NEMA 3 models are built with a waterproof gasket that keeps out water and solid particulates (although some NEMA 3R enclosures aren’t). You can count on a NEMA 3 enclosure for a high degree of protection against:

  • Adverse weather including rain, snow and sleet
  • Light splashing with water
  • Falling dirt and windblown dust
  • Accidental contact with personnel

The NEMA 3 rating also has several variants with different protective characteristics, including NEMA 3R, NEMA 3S, NEMA 3X and various combinations like NEMA 3RX. For more information on these ratings, see our guide to NEMA 3 vs. NEMA 3R enclosures.

Choosing Your NEMA 3 Enclosure

Polycase is a go-to source for reliable outdoor enclosures designed to protect your most sensitive electrical components, with dozens of high-quality NEMA 3 rated models available. Many of our NEMA 3 enclosures also feature higher ratings that offer additional protection, such as NEMA 4X for corrosion resistance and NEMA 6P for submersion resistance. All of our NEMA enclosures are UL Listed to ensure impeccable reliability and compliance.

Our enclosures also come with a variety of features and configurations to further increase their versatility and protection. From wall mount flanges to knockouts to hinged and screw cover enclosures, you’ll find the features you’re looking for in Polycase’s NEMA 3 enclosure selection. Need something customized? Our in-house customization services offer both CNC machining and digital printing, making it incredibly simple to get an enclosure that meets your needs.

Browse all of our NEMA 3 enclosures here, or see all of our outdoor enclosures to discover additional options for your outdoor application, including stainless steel and aluminum enclosures.

62 Items

/
All
Sort By
Filter By
View as Grid List
Page
3 of 3
  1. HP-110706 New
    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
  2. large plastic enclosure for outdoor use, weatherproof & waterproof New
    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
  3. ZH-121004
    Add to Compare Add to Wish List
    ZH-121004 Hinged Outdoor Enclosure
    As low as $50.35 per unit
    Internal: 11" x 9.6" x 4.8"
    296 x 245 x 123 mm
    External: 12" x 10" x 5.2"
    320 x 269 x 133 mm
    Material: Polycarbonate
  4. Polycase NEMA 6P enclosure
    Add to Compare Add to Wish List
    ZQ-121004 Outdoor Electrical Box
    As low as $47.63 per unit
    Internal: 11" x 9.6" x 4.8"
    296 x 245 x 123 mm
    External: 12" x 10" x 5.2"
    320 x 269 x 133 mm
    Material: Polycarbonate
  5. ZH-121006
    Add to Compare Add to Wish List
    ZH-121006 Hinged Outdoor Junction Box
    As low as $54.04 per unit
    Internal: 11" x 9.6" x 6.8"
    296 x 245 x 173 mm
    External: 12" x 10" x 7.2"
    320 x 269 x 183 mm
    Material: Polycarbonate
  6. Polycase NEMA enclosure
    Add to Compare Add to Wish List
    ZQ-121006 Outdoor Electrical Enclosure
    As low as $51.27 per unit
    Internal: 11" x 9.6" x 6.8"
    296 x 245 x 173 mm
    External: 12" x 10" x 7.2"
    320 x 269 x 183 mm
    Material: Polycarbonate
  7. ZH-121206
    Add to Compare Add to Wish List
    ZH-121206 Hinged NEMA Enclosure
    As low as $61.36 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
  8. 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
  9. HP-130906 New
    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. ZH-141204 New
    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
  11. Polycase waterproof case New
    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
  12. outdoor electrical enclosure

    AMERICAN MADE | HP SERIES

    Engineered for reliability, the HP Series offers the weatherproof protection you need at a price you want. Available in black or gray, with an optional clear cover and various external mounting styles to best suit your project.

    SHOP THE HP SERIES
  13. ZH-141206
    Add to Compare Add to Wish List
    ZH-141206 Hinged Outdoor Enclosure
    As low as $65.02 per unit
    Internal: 13" x 11" x 6.8"
    346 x 296 x 173 mm
    External: 14" x 12" x 7.2"
    371 x 320 x 183 mm
    Material: Polycarbonate
  14. Polycase NEMA enclosure
    Add to Compare Add to Wish List
    ZQ-141206 Outdoor Electrical Box
    As low as $61.67 per unit
    Internal: 13" x 11" x 6.8"
    346 x 296 x 173 mm
    External: 14" x 12" x 7.2"
    371 x 320 x 183 mm
    Material: Polycarbonate
  15. 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
  16. 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
  17. Large waterproof box New
    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
  18. Gray hinged electrical enclosure with Mounting Feet and Stainless Steel Latch
    Add to Compare Add to Wish List
    ZH-161407 Waterproof Electrical Box
    As low as $81.52 per unit
    Internal: 15" x 13" x 7.8"
    397 x 346 x 200 mm
    External: 16" x 14" x 8.2"
    422 x 371 x 210 mm
    Material: Polycarbonate
  19. Outdoor weatherproof plastic electrical enclosure made from durable polycarbonate
    Add to Compare Add to Wish List
    ZQ-161407 NEMA Electrical Junction Box
    As low as $77.37 per unit
    Internal: 15" x 13" x 7.8"
    397 x 346 x 200 mm
    External: 16" x 14" x 8.2"
    422 x 371 x 210 mm
    Material: Polycarbonate

62 Items

/
All
Sort By
Filter By
View as Grid List
Page
3 of 3

You added product to the Comparison List

Close
Shop By
Category
+ Show All
Color
Clear Cover
Series
+ Show All
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

Polycarbonate enclosure with digital printing

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