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Polycarbonate Enclosures & Boxes

Polycarbonate enclosures and boxes are an ideal solution for outdoor commercial and industrial applications. Meeting at least NEMA 4X and IP65 requirements, our polycarbonate cases are UL listed, waterproof and weatherproof. Durable, lightweight, impact-resistant, and UV-stabilized, polycarbonate is a preferred non-metallic material for outdoor electronic and electrical applications. Many of our polycarbonate boxes have a clear cover option for quick visibility of internal components.

What makes polycarbonate enclosures so tough and versatile, and what makes Polycase’s polycarbonate enclosures the gold standard? Read on to explore the features of our polycarbonate models in depth.

Advantages of Polycarbonate Electrical Enclosures

Polycarbonate material is ideal for manufacturing heavy-duty enclosure boxes due to its unique properties, such as: 

  • Extremely durable and resistant to impacts
  • Thermoplastic material that can be repeatedly heated and cooled without integrity loss
  • Easy to cut and customize, especially compared to other outdoor enclosure options such as stainless steel and fiberglass enclosures
  • Highly resistant to most types of corrosion
  • Can be manufactured in a variety of formats and shapes, including transparent enclosure covers

Polycarbonate enclosure solutions allow you to apply these characteristics in a huge variety of applications — from junction boxes to control panels to instrument enclosures. For more information on the properties and uses of polycarbonate, see our complete guide to polycarbonate.

Polycarbonate Enclosure Solutions from Polycase

With over 60 years of service to our customers, Polycase has spent decades developing a selection of hundreds of high-quality polycarbonate enclosure models. We offer polycarbonate plastic enclosures with a wide variety of features and performance ratings, including our highly popular NEMA Type 4X polycarbonate enclosures. Many models include features such as waterproof gaskets that make them an excellent choice for outdoor applications. 

Our enclosures are also available with a wide variety of accessories, configurations, and options, including transparent covers, DIN rails for easy component mounting, and optional wall mount flanges. Furthermore, polycarbonate enclosures are incredibly easy to customize through our customized in-house electrical enclosure services. We can add custom connector cutouts and digital printing to almost any series of polycarbonate enclosure models, and our fast and efficient process allows us to process customized orders in as little as one week. Best of all, you can get started on your custom enclosure order now with our Instant Quote tool.

Browse all of our polycarbonate enclosure models here. Want to see our full range of outdoor enclosure models in all materials? Browse our outdoor weatherproof boxes and electrical enclosures now.

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  1. 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
  2. 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
  3. 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
  4. 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
  5. 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
  6. Small black plastic waterproof enclosure
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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
  7. 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
  8. USB-31*15 Gray USB enclosure for electronics - 0.9 x 2.79 x 0.35 inches
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    USB-31 Plastic USB Enclosure
    As low as $1.40 per unit
    Internal: 1.7" x 0.7" x 0.2"
    45 x 19 x 6 mm
    External: 2.7" x 0.9" x 0.3"
    71 x 23 x 9 mm
    Material: Polycarbonate, ABS
  9. 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
  10. 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
  11. 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
  12. clear cover waterproof enclosure

    CLEAR COVER ENCLOSURES

    Gain easy visual access to internal components in a variety of sizes and styles

    SHOP CLEAR COVER ENCLOSURES
  13. WP-31F
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    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
  14. 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
  15. 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
  16. SK-12-02 Gray knockout box for electrical and junction box applications - 3.7 x 2.56 x 2.24 inches
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    SK-12 Enclosure with Knockouts
    As low as $10.64 per unit
    Internal: 3.3" x 2.2" x 1.7"
    85 x 56 x 45 mm
    External: 3.7" x 2.5" x 2.2"
    94 x 65 x 57 mm
    Material: Polycarbonate
  17. SK-25-02 Gray outdoor NEMA rated electrical junction box - 3.7 x 2.56 x 3.1 inches
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    SK-25 Enclosure with Knockouts
    As low as $12.64 per unit
    Internal: 3.3" x 2.2" x 2.7"
    85 x 56 x 69 mm
    External: 3.7" x 2.5" x 3.1"
    94 x 65 x 79 mm
    Material: Polycarbonate
  18. SK-13-02 Gray outdoor NEMA electrical box with knockouts - 3.7 x 3.7 x 2.24 inches
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    SK-13 Enclosure with Knockouts
    As low as $12.23 per unit
    Internal: 3.3" x 3.3" x 1.7"
    85 x 85 x 45 mm
    External: 3.7" x 3.7" x 2.2"
    94 x 94 x 57 mm
    Material: Polycarbonate
  19. SK-14-02 Gray waterproof junction box with knockouts - 4.33 x 4.33 x 2.6 inches
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    SK-14 Enclosure with Knockouts
    As low as $16.35 per unit
    Internal: 3.9" x 3.9" x 2.1"
    101 x 101 x 54 mm
    External: 4.3" x 4.3" x 2.6"
    110 x 110 x 66 mm
    Material: Polycarbonate
  20. ZH-040404
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    ZH-040404 Hinged NEMA Enclosure
    As low as $26.47 per unit
    Internal: 3.7" x 3.7" x 4.0"
    95 x 95 x 102 mm
    External: 4.4" x 4.4" x 4.3"
    112 x 112 x 110 mm
    Material: Polycarbonate
  21. ZQ-040404
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    ZQ-040404 Electrical Junction Box
    As low as $25.06 per unit
    Internal: 3.7" x 3.7" x 4.0"
    95 x 95 x 102 mm
    External: 4.4" x 4.4" x 4.3"
    112 x 112 x 110 mm
    Material: Polycarbonate
  22. ML-24F*1508 Gray with Clear Cover outdoor waterproof enclosure rated NEMA 4x and NEMA 6P - 4.5 x 2.63 x 2.05 inches
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    ML-24F Outdoor NEMA Enclosure
    As low as $7.99 per unit
    Internal: 4.1" x 2.2" x 1.7"
    105 x 57 x 44 mm
    External: 4.5" x 2.6" x 2.0"
    114 x 67 x 52 mm
    Material: Polycarbonate
  23. ML-44F*15 Gray outdoor waterproof box rated NEMA 4x and NEMA 6P - 4.5 x 4.5 x 2.44 inches
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    ML-44F Outdoor NEMA Enclosure
    As low as $11.10 per unit
    Internal: 4.0" x 4.0" x 2.1"
    103 x 103 x 54 mm
    External: 4.5" x 4.5" x 2.4"
    114 x 114 x 62 mm
    Material: Polycarbonate
  24. clear cover waterproof enclosure

    CLEAR COVER ENCLOSURES

    Gain easy visual access to internal components in a variety of sizes and styles

    SHOP CLEAR COVER ENCLOSURES

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Customized outdoor waterproof enclosure with graphics and machining

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CNC Machining

Simple to complex, leave the machining to us so you can focus on your business.
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Digital Printing

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