FIBOX Enclosures  

United States
  • Booth: 12533

Mfg of non-metallic UL listed, NEMA 4x,6P enclosures.

Fibox is the leading global manufacturer of non-metallic NEMA 4x enclosures in the world. With over 1,500 off-the-shelf sizes and styles ranging from 2 x 2 x 2 inches to 32 x 24 x 12 inches, Fibox has the right size enclosure for you.

Molded in robust impact & UV resistant, polycarbonate, Fibox enclosures can never rust. Our lightweight polycarbonate is easily modified, while the NEMA 4X ratings ensure your product components and controls will stay clean and dry even in the harshest of environments.

Fibox is an ISO certified company, and all of our enclosures carry UL listings including NEMA 4X and 6P. We can also save you time and money with our customization options utilizing our in-house CNC machines to modify your enclosures perfectly before leaving the warehouse.

Stop our booth today and tell us about your needs and learn how our enclosing innovations can enclose your innovations!



Polycarbonate v Fiberglass

 Press Releases

  • The ARCA - IEC from Fibox is now available in both portrait and landscape orientation.  The ARCA – IEC cabinet enclosure is the first real enclosing alternative to steel thanks to its high impact resistance this watertight impact, and UV resistant polycarbonate enclosure will not dent, rust, crack or bloom like steel or fiberglass and weighs less and is much easier to modify.

    The ARCA – IEC saves a company time and money.  Manufactured in robust polycarbonate the ARCA – IEC costs less to ship and is easier to transport. The polycarbonate plastic material is more durable in the field than a metal or fiberglass box and will not dent, crack, blister, rust or delaminate in the field.  Lastly the ARCA – IEC is more user-friendly to customize with holes cut-outs and recesses.

    The ARCA – IEC is manufactured in Fibox polycarbonate, a robust plastic that has endured an accelerated aging test to withstand 25 years out in the sun, without drying out or cracking.  The ARCA – IEC  cabinet enclosure will keep your components dry and dust free.  Like all Fibox products the ARCA – IEC is UL listed and rated 4X, 6 and 6P. The Wi-Fi friendly nature of polycarbonate eliminates the need for an external antenna for radio transmission.

    The ARCA – IEC has it all, offering a superior product for considerably less than the cost of the metal enclosure.  In addition to price the ARCA – IEC, is lighter than metal, so it is less expensive transport and easier to modify.  Fibox enclosures will outlast the competition in the field, reducing all companies’ cost of ownership when upgrading their products.


    ARCA - IEC is the largest polycarbonate enclosure on the market today! Driven by innovation and market demand the ARCA - IEC is the ideal and cost effective alternative to sheet steel cabinets needed in demanding locations....

  • Driven by innovation and market demand the ARCA – IEC is the ideal and cost-effective alternative to sheet steel cabinets or fiberglass enclosures needed in harsh environments.  Only Fibox offers the industry the largest UL listed, NEMA 4X polycarbonate enclosure in the world.  The ARCA - IEC has the strength of a metal box and the benefits of a plastic enclosure.

    Available in both portrait and landscape orientation, the ARCA – IEC cabinet series provides high impact and UV resistance. These watertight polycarbonate enclosures will not dent, crack or bloom like steel or fiberglass.

    The ARCA – IEC also weighs considerably less and is easier to modify than its metal or fiberglass counterparts, saving both time and money. Select sizes offer a pad- lockable swing handle option to further secure your design.

    The ARCA – IEC is manufactured in Fibox’s Wi-Fi friendly polycarbonate, a robust, corrosion proof thermoplastic that will never rust.  Your components stay dry and dust free thanks to the formed in place PUR gasket which makes a watertight seal.

    These are just a few of the reasons why the ARCA – IEC is the ideal NEMA 4X cabinet enclosure for any application.

    Fibox proudly offers all the standard accessories you’ll need for the ARCA – IEC and can customize your selection with holes, cut-outs and recess.

    Fibox’s ARCA – JIC polycarbonate enclosures feature industry standard dimensions and panels, with both screw and hinge covers. All ARCA series enclosures are UL listed and rated NEMA 4X and 6P....

  • ARCA - JIC non-metallic enclosures provide users of traditional electrical junction boxes an easy upgrade path for a robust, high-performance solution. The ARCA - JIC enclosures are available in standard JIC sizes and feature industry standard dimensions and panels, with both screw and hinge covers.  The ARCA – JIC series size range is 6.0’’ x 6.0’’ x 4.0’’ to 24.0’’ x 24.0’’ x 10.0’’ with our traditional opaque raised covers. Many sizes are available with raised transparent covers, and now select sizes offer increased real estate with a sleek flat opaque cover design (FC).
    Fibox is proud to offer the industry’s first, and only JIC sized, NEMA 4X polycarbonate enclosure with industry standard ¾ and ½ inch pre-formed knock-outs (KO).  These knock-outs provide easy modifications in the field or factory floor while still allowing the enclosure to retain its NEMA 4X status.
    Fibox’s UL listed NEMA 4X HMI cover kits provide protection for instruments or electronics components, that need secure accessibility and is available in two sizes (12 x 10 3.31 and 16 x 14 x 3.31)....

  • Fibox’s  HMI cover kits provide protection for instruments or electronics components, that need secure accessibility.  The Instrument Protection Window permits both viewing and access to readouts and controls which are surface mounted on any metal or non-metallic enclosures.

    These HMI covers allows for easy viewing of meters or displays and affords direct access to HMI controls on any underlying enclosure. With a working depth of  over 3 inches, Fibox’s IPW provides an easy to install, secure HMI access cover on any enclosure while still retaining it’s NEMA 4X classification. Inoors or outdoor, the IPW maintains a water and dust free environment with a dual formed in place polyurethane gasketing system and secure streamline lockable cover.

    With two sizes available (12 x 10 3.31  and 16 x 14 x 3.31), the IPW is made to the same exacting standards of all Fibox enclosures and is UL listed NEMA 4X.  Rugged, UV protected, impact resistant polycarbonate makes the IPW an robust solution for all cabinets and control panels.

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