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Clear Plastic Cover Enclosures

Polycase offers several electrical enclosures made from polycarbonate with a transparent clear cover for those applications that need visual access to internal components. Clear and transparent waterproof boxes protect components in harsh conditions and are available in a variety of sizes and styles. Molded from durable, UV-stable material, polycarbonate enclosures with clear lids can be trusted to keep your components safe.  These enclosures are designed for outdoor use as they are waterproof and UV-resistant, meeting NEMA and IP ratings for wet and dirty environments.

What are common uses of a clear enclosure cover, and how does Polycase set a standard for transparent enclosures? We discuss the answers in detail below.

Why Use Clear Plastic Cover Enclosures?

A transparent cover can be a useful feature on many different types of enclosures and in many different applications. Typically, the purpose of a clear junction box is to make it easy to visually inspect the enclosure’s components without the need to actually open the enclosure. This can be critical in applications where opening your weatherproof box enclosure could mean exposing your components to the conditions you’re trying to guard against in the first place. 

Industrial control panels, circuit breakers, utility meters, communications devices, and many other applications can benefit from the use of a transparent plastic enclosure. These devices often require regular status checks, but they also need to be protected from environmental hazards, making transparent enclosures an excellent solution. Even simple DIY electronic project boxes, however, can sometimes benefit from the convenience of a transparent cover in certain applications.

Polycarbonate plastic is the preferred material for clear cover enclosures because polycarbonate is easy to manufacture in a transparent format while keeping a high standard of durability.

Transparent Cover Enclosures from Polycase

Polycase’s boxes are designed to offer a higher standard of toughness, thanks to their durable polycarbonate construction, along with features like weatherproof silicone gaskets and stainless steel fasteners to create incredibly durable enclosures. Many of our models also carry protective ratings such as NEMA 4X and IP66, offering professional-level protection that guards your most sensitive devices against harsh environmental conditions.

It’s also incredibly simple to customize your clear waterproof junction box through Polycase. Using our in-house CNC machining and digital printing equipment, we can customize most stock enclosure models with connector cutouts, high-quality digital imagery, and more — all with lead times as short as one week. What’s more, Polycase offers a complete selection of cable glands and other enclosure accessories to ensure that your enclosure maintains its dustproof and waterproof protective ratings.

On this page, you’ll find all of our electrical junction boxes with clear covers. Browse the product details of any model here, or see our complete selection of outdoor junction boxes to evaluate all of our available options.

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  1. WC-20
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    WC-20
    As low as $5.74 per unit
    2.28 x 2.52 x 1.38 in.
    58 x 64 x 35 mm.
    Material: Polycarbonate
  2. WC-20F
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    WC-20F
    As low as $5.48 per unit
    2.28 x 2.52 x 1.38 in.
    58 x 64 x 35 mm.
    Material: Polycarbonate
  3. 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
    As low as $8.51 per unit
    2.56 x 2.56 x 2.24 in.
    65 x 65 x 57 mm.
    Material: Polycarbonate
  4. 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
    As low as $5.80 per unit
    2.63 x 2.63 x 1.63 in.
    67 x 67 x 41 mm.
    Material: Polycarbonate
  5. WC-31
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    WC-31
    As low as $8.92 per unit
    3.23 x 3.15 x 2.17 in.
    82 x 80 x 55 mm.
    Material: Polycarbonate
  6. WC-31F
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    WC-31F
    As low as $9.36 per unit
    3.23 x 3.15 x 2.17 in.
    82 x 80 x 55 mm.
    Material: Polycarbonate
  7. SG-10-02 Gray polycarbonate electrical enclosure - 3.31 x 3.23 x 2.17 inches
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    SG-10
    As low as $13.31 per unit
    3.31 x 3.23 x 2.17 in.
    84 x 82 x 55 mm.
    Material: Polycarbonate
  8. 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
    As low as $14.72 per unit
    3.31 x 3.23 x 3.31 in.
    84 x 82 x 84 mm.
    Material: Polycarbonate
  9. 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
    As low as $10.64 per unit
    3.70 x 2.56 x 2.24 in.
    94 x 65 x 57 mm.
    Material: Polycarbonate
  10. 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
    As low as $12.64 per unit
    3.70 x 2.56 x 3.10 in.
    94 x 65 x 79 mm.
    Material: Polycarbonate
  11. 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
    As low as $12.23 per unit
    3.70 x 3.70 x 2.24 in.
    94 x 94 x 57 mm.
    Material: Polycarbonate
  12. Timer Module

    Polycase Customization Services

    Minimal cost. Maximum impact.

    Learn More
  13. SK-14-02 Gray waterproof junction box with knockouts - 4.33 x 4.33 x 2.6 inches
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    SK-14
    As low as $16.35 per unit
    4.33 x 4.33 x 2.60 in.
    110 x 110 x 66 mm.
    Material: Polycarbonate
  14. 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
    As low as $7.99 per unit
    4.50 x 2.63 x 2.05 in.
    114 x 67 x 52 mm.
    Material: Polycarbonate
  15. 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
    As low as $11.10 per unit
    4.50 x 4.50 x 2.44 in.
    114 x 114 x 62 mm.
    Material: Polycarbonate
  16. WC-21
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    WC-21
    As low as $8.75 per unit
    4.53 x 2.56 x 1.57 in.
    115 x 65 x 40 mm.
    Material: Polycarbonate
  17. WC-21F
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    WC-21F
    As low as $8.45 per unit
    4.53 x 2.56 x 1.57 in.
    115 x 65 x 40 mm.
    Material: Polycarbonate
  18. WC-22
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    WC-22
    As low as $9.47 per unit
    4.53 x 2.56 x 2.17 in.
    115 x 65 x 55 mm.
    Material: Polycarbonate
  19. WC-22F
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    WC-22F
    As low as $8.84 per unit
    4.53 x 2.56 x 2.17 in.
    115 x 65 x 55 mm.
    Material: Polycarbonate
  20. WC-23
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    WC-23
    As low as $10.98 per unit
    4.53 x 3.54 x 2.17 in.
    115 x 90 x 55 mm.
    Material: Polycarbonate
  21. WC-23F
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    WC-23F
    As low as $9.95 per unit
    4.53 x 3.54 x 2.17 in.
    115 x 90 x 55 mm.
    Material: Polycarbonate
  22. WC-28
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    WC-28
    As low as $12.93 per unit
    4.53 x 3.54 x 3.15 in.
    115 x 90 x 80 mm.
    Material: Polycarbonate
  23. WC-28F
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    WC-28F
    As low as $11.47 per unit
    4.53 x 3.54 x 3.15 in.
    115 x 90 x 80 mm.
    Material: Polycarbonate
  24. Timer Module

    Polycase Customization Services

    Minimal cost. Maximum impact.

    Learn More

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Customization Services

outdoor enclosure for electronics

CNC Machining

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

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