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Need a quick summary of how a NEMA 3X enclosure works and how it compares to other NEMA enclosure types? Click “Read More” to learn all about NEMA 3X.
What Is a NEMA 3X Enclosure?
The NEMA 3X rating is part of the NEMA enclosure rating system, a rating scale established by the National Electrical Manufacturers Association for evaluating the protective performance of electrical enclosures. The NEMA system rates enclosures on how well they resist a variety of environmental conditions. These conditions can include anything from light splashing of water to falling dirt and windblown dust to rain, sleet and snow. Some ratings even protect against corrosive agents.
Any NEMA 3 enclosure offers a strong degree of protection from the ingress of water and dust. A rating in the NEMA 3 family (such as NEMA 3X and NEMA 3R) indicates that an enclosure model is suitable for both indoor use and general outdoor use.
Like most other NEMA 3 enclosures, NEMA 3X enclosures are made with a gasket that allows them to effectively keep out water and dust. This makes them popular for sensitive applications such as power distribution, control panels or communications equipment that require excellent protection for sensitive connectors and components.
In addition, NEMA 3X enclosures offer corrosion protection that helps protect devices from the harmful effects of corrosive agents, such as salt water and industrial chemicals. (NEMA ratings that include an X, such as NEMA 4X, always indicate a degree of corrosion resistance.)
NEMA 3X Enclosures from Polycase
Each of the enclosures on this page has been UL tested to meet NEMA 3X standards. Polycase offers NEMA 3X enclosures in durable polycarbonate plastic with many different options based on your performance needs. Use the filter options on the side of this page to look for the features your application requires.
You’ll notice that our NEMA 3X enclosures offer compliance with a variety of other common NEMA standards, such as NEMA 3R, NEMA 4 and NEMA 6P. We design our enclosures to satisfy multiple NEMA enclosure types, allowing us to offer better value to our customers and more sophisticated protection for your devices.
Add to Compare Add to Wish ListHD-45F Black Waterproof BoxAs low as $8.02 per unitInternal: 6.1" x 4.1" x 1.9"156 x 106 x 48 mmExternal: 6.6" x 4.6" x 2.3"168 x 119 x 60 mmMaterial: Polycarbonate
New Add to Compare Add to Wish ListHP-070504 NEMA Electrical BoxAs low as $18.86 per unitInternal: 6.6" x 4.6" x 4.0"169 x 118 x 102 mmExternal: 7.2" x 5.2" x 4.2"183 x 133 x 109 mmMaterial: Polycarbonate
New Add to Compare Add to Wish ListHP-070705 IP66 Junction BoxAs low as $24.76 per unitInternal: 6.7" x 6.7" x 5.5"172 x 172 x 140 mmExternal: 7.2" x 7.2" x 5.7"183 x 183 x 147 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListML-48F Weatherproof NEMA EnclosureAs low as $12.43 per unitInternal: 7.1" x 4.1" x 1.9"181 x 105 x 49 mmExternal: 7.6" x 4.6" x 2.2"193 x 117 x 57 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListML-47F Outdoor NEMA EnclosureAs low as $13.81 per unitInternal: 7.1" x 4.1" x 2.7"181 x 105 x 71 mmExternal: 7.6" x 4.6" x 3.0"193 x 117 x 78 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListHD-58F NEMA Polycarbonate EnclosureAs low as $11.30 per unitInternal: 7.5" x 4.7" x 2.3"191 x 121 x 59 mmExternal: 8.0" x 5.2" x 2.7"203 x 133 x 69 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListZH-080604 Weatherproof EnclosureAs low as $40.62 per unitInternal: 7.7" x 5.7" x 4.8"197 x 146 x 124 mmExternal: 8.4" x 6.4" x 5.2"213 x 163 x 133 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListZQ-080604 Electrical Junction BoxAs low as $38.50 per unitInternal: 7.7" x 5.7" x 4.8"197 x 146 x 124 mmExternal: 8.4" x 6.4" x 5.2"213 x 163 x 133 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListZH-080804 NEMA Electrical BoxAs low as $46.93 per unitInternal: 7.7" x 7.7" x 4.8"197 x 197 x 124 mmExternal: 8.4" x 8.4" x 5.2"213 x 213 x 133 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListZQ-080804 Waterproof Junction BoxAs low as $44.53 per unitInternal: 7.7" x 7.7" x 4.8"197 x 197 x 124 mmExternal: 8.4" x 8.4" x 5.2"213 x 213 x 133 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListML-57F Weatherproof NEMA EnclosureAs low as $15.79 per unitInternal: 8.2" x 4.7" x 1.9"209 x 121 x 49 mmExternal: 8.7" x 5.2" x 2.2"222 x 133 x 57 mmMaterial: Polycarbonate
SHOP THE HP SERIESAMERICAN 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.
Add to Compare Add to Wish ListML-58F Outdoor NEMA EnclosureAs low as $18.04 per unitInternal: 8.2" x 4.7" x 2.9"209 x 121 x 76 mmExternal: 8.7" x 5.2" x 3.3"222 x 133 x 84 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListML-70F Plastic NEMA EnclosureAs low as $25.30 per unitInternal: 9.5" x 6.5" x 3.7"243 x 166 x 95 mmExternal: 10" x 7.0" x 4.0"254 x 178 x 103 mmMaterial: Polycarbonate
New Add to Compare Add to Wish ListHP-100604 Low-Profile NEMA EnclosureAs low as $26.96 per unitInternal: 9.6" x 5.6" x 4.0"245 x 143 x 102 mmExternal: 10" x 6.2" x 4.2"260 x 158 x 109 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListZH-100802 Hinged Junction BoxAs low as $45.02 per unitInternal: 9.7" x 7.5" x 3.3"248 x 191 x 86 mmExternal: 10" x 8.4" x 3.7"264 x 213 x 94 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListZQ-100802 Waterproof Junction BoxAs low as $42.62 per unitInternal: 9.7" x 7.5" x 3.3"248 x 191 x 86 mmExternal: 10" x 8.4" x 3.7"264 x 213 x 94 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListZH-100804 NEMA Hinged Electrical EnclosureAs low as $46.58 per unitInternal: 9.7" x 7.5" x 4.8"248 x 191 x 124 mmExternal: 10" x 8.4" x 5.2"264 x 213 x 133 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListZQ-100804 Waterproof Outdoor EnclosureAs low as $44.17 per unitInternal: 9.7" x 7.5" x 4.8"248 x 191 x 124 mmExternal: 10" x 8.4" x 5.2"264 x 213 x 133 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListZH-100806 Outdoor Electrical EnclosureAs low as $49.76 per unitInternal: 9.7" x 7.5" x 6.8"248 x 191 x 175 mmExternal: 10" x 8.4" x 7.2"264 x 213 x 183 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListZQ-100806 Outdoor Electrical Junction BoxAs low as $47.19 per unitInternal: 9.7" x 7.5" x 6.8"248 x 191 x 175 mmExternal: 10" x 8.4" x 7.2"264 x 213 x 183 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListZH-101006 Hinged NEMA EnclosureAs low as $51.35 per unitInternal: 9.7" x 9.7" x 6.8"248 x 248 x 175 mmExternal: 10" x 10" x 7.2"264 x 264 x 183 mmMaterial: Polycarbonate
Add to Compare Add to Wish ListZQ-101006 Electrical Junction BoxAs low as $48.70 per unitInternal: 9.7" x 9.7" x 6.8"248 x 248 x 175 mmExternal: 10" x 10" x 7.2"264 x 264 x 183 mmMaterial: Polycarbonate- SHOP THE HP SERIES
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.
Customization Services
CNC Machining
Receive your enclosures with the cutouts you need, so they are ready to go to work for you.
Learn MoreDigital Printing
Weatherproof and chemical-resistant ink printed directly onto the enclosure, that won't peel, bubble or scratch.
Learn MoreMinimal Cost. Maximum Impact.
