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Lockable Electrical Boxes

Lockable electrical enclosures and lockable junction boxes are NEMA and IP-rated for weatherproof outdoor protection. Designed to keep your components secure in any environment, our locking waterproof boxes protect equipment from unwanted tampering. Lockable outdoor boxes are available in corrosion-resistant plastic and metal varieties. Plastic lockable electrical enclosures provide added security while staying lightweight and durable. Lockable metal boxes, available in steel and stainless steel, are a heavy-duty solution providing natural RFI/EMI shielding.  Our locking electrical boxes are available with optional accessories like internal panels, pole mount kits, or DIN rail kits.

Read more below to learn about our lockable enclosures and find tips for choosing the model that’s right for your application.

Lockable Electrical Boxes: Key Features and Uses

A locking electrical enclosure is a must-have for any application where equipment security and access control are high priorities. That could include using an outdoor outlet box to guard outdoor receptacles against unauthorized use, preventing unauthorized access to critical equipment like a security control panel, and numerous other applications. Read our blog post on lockable NEMA enclosures to learn more about applications that benefit from lockable enclosures.

These enclosures are available in various configurations. Some offer built-in keyed locks directly integrated into the enclosure cover. Other enclosure models include a padlock hasp, typically attached to the enclosure’s latch or cover seam, so the end user can supply their own lock. 

Whichever security mechanism they use, lockable enclosures must be made from durable materials — such as stainless steel or fiberglass-reinforced polycarbonate — to ensure they can’t be defeated by brute force. Additionally, in many applications, weatherproofing features such as waterproof and dustproof gaskets are critical for protecting equipment. For these reasons, it’s crucial to choose high-quality lockable enclosures with the specific performance features you’re looking for.

Polycase’s Selection of Locking Electrical Enclosures

In search of a durable enclosure with a locking box cover? Polycase offers numerous outdoor electrical boxes with lockable covers to keep your equipment secure. Plus, with our reliable weatherproof enclosure construction, it’s never been easier to keep sensitive equipment protected from the many environmental hazards that can affect it. 

Features such as waterproof gaskets and weatherproof covers make it clear that these locking enclosures are built for outdoor-grade performance. Our locking enclosures also feature NEMA and IP ratings so you can find exactly the protection you need. All of our NEMA and IP-rated models are UL Listed to ensure excellent performance. 

Need to customize your enclosure? We’ve got you covered. It’s simple to add customized CNC machining cutouts and digital printing to most of our weatherproof boxes via Polycase’s extensive in-house enclosure customization services. Get started with an instant quote on a customized enclosure now! 

Find your perfect secure electrical enclosure right here with our lineup of locking enclosures. Use the filtering tools to look for your preferred characteristics, including size, materials, and more. Or, browse our full lineup of weatherproof enclosures for more of our most popular enclosure models, with a wide range of feature options like clear covers, mounting flanges, and built-in knockouts. 

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  1. Polycase WQ-35 waterproof hinged electrical junction box
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    WQ-35
    As low as $10.90 per unit
    4.72 x 3.53 x 2.82 in.
    119.89 x 89.66 x 71.63 mm.
    Material: Polycarbonate
  2. Clear cover hinged enclosure
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    ZH-040404
    As low as $27.91 per unit
    5.04 x 5.04 x 4.83 in.
    128.02 x 128.02 x 122.68 mm.
    Material: Polycarbonate
  3. WH-02-02 Gray outdoor hinged waterproof NEMA electrical enclosure - 5.11 x 3.93 x 2.75 inches
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    WH-02
    As low as $8.58 per unit
    5.11 x 3.93 x 2.75 in.
    129.79 x 99.82 x 69.85 mm.
    Material: ABS, Polycarbonate
  4. WH-10-02 Gray outdoor hinged waterproof NEMA electrical enclosure - 5.9 x 5.9 x 3.54 inches
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    WH-10
    As low as $12.04 per unit
    5.90 x 5.90 x 3.54 in.
    149.86 x 149.86 x 89.92 mm.
    Material: ABS, Polycarbonate
  5. Polycase WH-04 outdoor waterproof electrical enclosure
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    WH-04
    As low as $10.50 per unit
    5.91 x 3.94 x 2.77 in.
    150.11 x 100.08 x 70.36 mm.
    Material: ABS, Polycarbonate
  6. WQ-46 plastic hinged junction box
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    WQ-46
    As low as $19.69 per unit
    5.91 x 5.91 x 3.57 in.
    150.11 x 150.11 x 90.68 mm.
    Material: Polycarbonate
  7. Polycase WQ-38 outdoor waterproof electrical junction box
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    WQ-38
    As low as $14.65 per unit
    5.92 x 3.94 x 3.43 in.
    150.37 x 100.08 x 87.12 mm.
    Material: Polycarbonate
  8. 6x4x4 waterproof electrical enclosure
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    ZH-060404
    As low as $34.89 per unit
    7.04 x 5.04 x 4.83 in.
    178.82 x 128.02 x 122.68 mm.
    Material: Polycarbonate
  9. 6x6x4 electrical enclosure
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    ZH-060604
    As low as $39.18 per unit
    7.04 x 7.04 x 5.72 in.
    178.82 x 178.82 x 145.29 mm.
    Material: Polycarbonate
  10. Polycase WQ-44 weatherproof junction box
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    WQ-44
    As low as $18.23 per unit
    7.30 x 5.32 x 3.38 in.
    185.42 x 135.13 x 85.85 mm.
    Material: Polycarbonate
  11. WH-14-02 Gray outdoor hinged waterproof NEMA electrical enclosure - 7.71 x 7.71 x 5.9 inches
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    WH-14
    As low as $23.56 per unit
    7.71 x 7.71 x 5.90 in.
    195.83 x 195.83 x 149.86 mm.
    Material: ABS, Polycarbonate
  12. outdoor electrical enclosure

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  13. WH-06-02 Gray outdoor hinged waterproof NEMA electrical enclosure - 7.87 x 3.93 x 2.75 inches
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    WH-06
    As low as $11.89 per unit
    7.87 x 3.93 x 2.75 in.
    199.90 x 99.82 x 69.85 mm.
    Material: ABS, Polycarbonate
  14. SA-38
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    SA-38
    As low as $132.15 per unit
    7.87 x 5.91 x 5.91 in.
    199.90 x 150.11 x 150.11 mm.
    Material: Stainless Steel
  15. SB-38
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    SB-38
    As low as $50.64 per unit
    7.87 x 5.91 x 5.91 in.
    199.90 x 150.11 x 150.11 mm.
    Material: Steel
  16. SA-39
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    SA-39
    As low as $137.91 per unit
    7.87 x 7.87 x 3.98 in.
    199.90 x 199.90 x 101.09 mm.
    Material: Stainless Steel
  17. SB-39
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    SB-39
    As low as $48.87 per unit
    7.87 x 7.87 x 3.98 in.
    199.90 x 199.90 x 101.09 mm.
    Material: Steel
  18. Polycase WQ-48 outdoor waterproof electrical junction box
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    WQ-48
    As low as $25.25 per unit
    8.24 x 6.29 x 3.93 in.
    209.30 x 159.77 x 99.82 mm.
    Material: Polycarbonate
  19. Polycase WQ-55 outdoor hinged electrical enclosure
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    WQ-55
    As low as $27.91 per unit
    8.27 x 8.26 x 5.15 in.
    210.06 x 209.80 x 130.81 mm.
    Material: Polycarbonate
  20. 8x6x4 waterproof electrical enclosure
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    ZH-080604
    As low as $42.06 per unit
    9.04 x 7.04 x 5.72 in.
    229.62 x 178.82 x 145.29 mm.
    Material: Polycarbonate
  21. 8x8x4 electrical enclosure
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    ZH-080804
    As low as $48.37 per unit
    9.04 x 9.04 x 5.72 in.
    229.62 x 229.62 x 145.29 mm.
    Material: Polycarbonate
  22. SA-41
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    SA-41
    As low as $164.43 per unit
    9.84 x 7.87 x 3.98 in.
    249.94 x 199.90 x 101.09 mm.
    Material: Stainless Steel
  23. SB-41
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    SB-41
    As low as $54.86 per unit
    9.84 x 7.87 x 3.98 in.
    249.94 x 199.90 x 101.09 mm.
    Material: Steel
  24. outdoor electrical enclosure

    Save time and money with Polycase customization services

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outdoor enclosure with graphics and cutouts

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CNC Machining

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Digital Printing

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