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All Electronic Enclosures & Accessories

Quality enclosures in plastic, aluminum and steel

Browse an extensive lineup of durable enclosures for any environment or application. High-quality electrical and electronic enclosures are available in a variety of sizes, styles, and ratings. Along with a wide range of convenient accessories to complete your project. Find your perfect fit at Polycase!

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  1. SK-30-02 Gray polycarbonate and fiberglass outdoor electrical junction box with knockouts - 14.21 x 10 x 6.39 inches
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    SK-30 Enclosure with Knockouts
    As low as $125.08 per unit
    Internal: 13" x 9.6" x 6.1"
    353 x 245 x 156 mm
    External: 14" x 10" x 6.3"
    361 x 254 x 162 mm
    Material: Polycarbonate
  2. SK-22-02 Gray waterproof NEMA box with knockouts - 14.21 x 10 x 4.37 inches
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    SK-22 Enclosure with Knockouts
    As low as $109.60 per unit
    Internal: 13" x 9.6" x 4.0"
    353 x 245 x 102 mm
    External: 14" x 10" x 4.3"
    361 x 254 x 111 mm
    Material: Polycarbonate
  3. SK-21-02 Gray outdoor NEMA rated knockout box - 10 x 7.09 x 4.37 inches
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    SK-21 Enclosure with Knockouts
    As low as $51.61 per unit
    Internal: 9.6" x 6.7" x 4.0"
    245 x 171 x 102 mm
    External: 10" x 7.0" x 4.3"
    254 x 180 x 111 mm
    Material: Polycarbonate
  4. SK-24-02 Gray waterproof NEMA 12K and NEMA 4X knockout box - 10 x 7.09 x 3.54 inches
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    SK-24 Enclosure with Knockouts
    As low as $47.54 per unit
    Internal: 9.6" x 6.7" x 3.2"
    245 x 171 x 81 mm
    External: 10" x 7.0" x 3.5"
    254 x 180 x 90 mm
    Material: Polycarbonate
  5. SK-23-02 Gray outdoor NEMA rated electrical knockout box - 10 x 7.09 x 3.31 inches
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    SK-23 Enclosure with Knockouts
    As low as $45.72 per unit
    Internal: 9.6" x 6.7" x 2.9"
    245 x 171 x 76 mm
    External: 10" x 7.0" x 3.3"
    254 x 180 x 84 mm
    Material: Polycarbonate
  6. German-made knockout-box from Polycase
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    SK-20 Enclosure with Knockouts
    As low as $42.10 per unit
    Internal: 9.6" x 6.7" x 2.1"
    245 x 171 x 55 mm
    External: 10" x 7.0" x 2.4"
    254 x 180 x 63 mm
    Material: Polycarbonate
  7. SK-19-02 Gray NEMA 12K outdoor box with knockouts - 7.17 x 7.09 x 3.54 inches
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    SK-19 Enclosure with Knockouts
    As low as $35.48 per unit
    Internal: 6.7" x 6.8" x 3.2"
    171 x 174 x 81 mm
    External: 7.1" x 7.0" x 3.5"
    182 x 180 x 90 mm
    Material: Polycarbonate
  8. SK-28-02 Gray knockout electrical outdoor enclosure - 7.17 x 7.09 x 2.42 inches
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    SK-28 Enclosure with Knockouts
    As low as $30.97 per unit
    Internal: 6.8" x 6.2" x 2.1"
    173 x 158 x 55 mm
    External: 7.1" x 7.0" x 2.4"
    182 x 180 x 61 mm
    Material: Polycarbonate
  9. enclosure with clear lid
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    SK-18 Enclosure with Knockouts
    As low as $30.89 per unit
    Internal: 6.7" x 4.7" x 2.9"
    171 x 121 x 76 mm
    External: 7.0" x 5.1" x 3.3"
    180 x 130 x 84 mm
    Material: Polycarbonate
  10. SK-29-02 Gray outdoor waterproof NEMA electrical junction box with knockouts - 7.09 x 4.33 x 3.45 inches
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    SK-29 Enclosure with Knockouts
    As low as $26.96 per unit
    Internal: 6.7" x 3.9" x 3.2"
    171 x 101 x 81 mm
    External: 7.0" x 4.3" x 3.4"
    180 x 110 x 88 mm
    Material: Polycarbonate
  11. SK-27-02 Gray outdoor NEMA rated electrical box with knockouts - 7.09 x 3.7 x 3.1 inches
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    SK-27 Enclosure with Knockouts
    As low as $23.93 per unit
    Internal: 6.7" x 3.3" x 2.6"
    171 x 85 x 68 mm
    External: 7.0" x 3.7" x 3.1"
    180 x 94 x 79 mm
    Material: Polycarbonate
  12. outdoor electrical enclosure

    200+ AMERICAN MADE ENCLOSURES

    Prioritize your supply chain with USA made enclosures. With reliable inventory and fast shipping - it's easy to find what you're looking for with endless sizes and styles to choose from.

    SHOP AMERICAN MADE
  13. SK-17-02 Gray NEMA rated junction box with knockouts - 7.09 x 3.7 x 2.24 inches
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    SK-17 Enclosure with Knockouts
    As low as $20.32 per unit
    Internal: 6.7" x 3.3" x 1.7"
    171 x 85 x 44 mm
    External: 7.0" x 3.7" x 2.2"
    180 x 94 x 57 mm
    Material: Polycarbonate
  14. SK-16-02 Gray electrical box with knockouts - 5.12 x 5.12 x 2.95 inches
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    SK-16 Enclosure with Knockouts
    As low as $20.20 per unit
    Internal: 4.7" x 4.7" x 2.4"
    121 x 121 x 62 mm
    External: 5.1" x 5.1" x 2.9"
    130 x 130 x 75 mm
    Material: Polycarbonate
  15. German-made knockout-box from Polycase
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    SK-26 Enclosure with Knockouts
    As low as $17.78 per unit
    Internal: 4.7" x 3.3" x 2.6"
    121 x 85 x 68 mm
    External: 5.1" x 3.7" x 3.1"
    130 x 94 x 79 mm
    Material: Polycarbonate
  16. SK-15-02 Gray weatherproof electrical enclosure with knockouts - 5.12 x 3.7 x 2.24 inches
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    SK-15 Enclosure with Knockouts
    As low as $15.70 per unit
    Internal: 4.7" x 3.3" x 1.7"
    121 x 85 x 44 mm
    External: 5.1" x 3.7" x 2.2"
    130 x 94 x 57 mm
    Material: Polycarbonate
  17. 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
  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-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
  20. 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
  21. 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

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