Allied Moulded 9343-NK Fibergl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.98
Allied Moulded 9343-NK Fiberglass Reinforced Polyester Square Junction Box

Allied Moulded 9343-NK Fiberglass Reinforced Polyester Square Junction Box

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Model: 9343-NK

In Stock (leaves warehouse same day if ordered before 3pm ET)

$4.98
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Allied Moulded 9343-NK Fiberglass Reinforced Polyester Square Junction Box

The Allied Moulded 9343-NK is a square junction box built from fiberglass reinforced polyester, part of the Allied Moulded FiberglassBox™ line. Sized at 4-1/16-Inch x 4-1/16-Inch x 2-1/2-Inch with 32.3-Cubic-Inch of interior capacity, this enclosure provides a compact, corrosion-resistant housing for splicing and pulling conductors in a wide range of electrical installations. Its non-metallic fiberglass reinforced polyester construction makes it an excellent choice where standard steel or aluminum enclosures may be prone to rust, corrosion, or degradation from environmental exposure. The square profile and generous internal volume give installers room to work with wire connections while keeping the enclosure footprint compact for tight mounting locations.

Key Features

  • Compact Square Footprint: Measures 4-1/16-Inch x 4-1/16-Inch x 2-1/2-Inch, sized for standard junction box mounting locations.
  • Interior Capacity: Offers 32.3-Cubic-Inch of usable interior volume for conductor splicing and connections.
  • Durable Construction: Molded from fiberglass reinforced polyester for corrosion resistance versus traditional metallic boxes.
  • Non-Metallic Design: Fiberglass reinforced polyester material resists rust and degradation in a variety of installation environments.
  • FiberglassBox™ Series: Part of the Allied Moulded FiberglassBox™ product family, designed for dependable junction and pull box applications.

Technical Specifications

  • Model: 9343-NK
  • Product Type: Square Junction Box
  • Material: Fiberglass Reinforced Polyester
  • Dimensions: 4-1/16-Inch x 4-1/16-Inch x 2-1/2-Inch
  • Interior Capacity: 32.3-Cubic-Inch

Typical Applications

  • Conductor Splicing and Pull Point Installations
  • Commercial and Industrial Electrical Wiring Systems
  • Corrosion-Prone or Harsh Environment Installations
  • New Construction and Retrofit Electrical Projects

Why Allied Moulded?

Allied Moulded's FiberglassBox™ series is engineered from fiberglass reinforced polyester to deliver a non-metallic alternative to conventional junction boxes, helping installers avoid the corrosion issues common with steel or aluminum enclosures. The 9343-NK combines a compact 4-1/16-Inch x 4-1/16-Inch x 2-1/2-Inch square profile with 32.3-Cubic-Inch of usable capacity, making it a practical choice for electrical professionals seeking a durable, easy-to-install junction box for demanding applications.

Manufacturer Resources

Spec Sheet

Product Specs

list_batch:
ALM-20260924
Product Type:
Junction Box
Configuration:
Square
Department:
Electrical
Product Group:
Boxes & Enclosures
Product Subgroup:
Electrical Boxes
Product Material:
Fiberglass Reinforced Polyester

Allied Moulded 9343-NK – Frequently Asked Questions

1) Will the Allied Moulded 9343-NK fit where a standard 4-inch square metal box goes?
The 9343-NK measures 4-1/16 x 4-1/16 x 2-1/2 inches, so it occupies about the same footprint as a conventional 4-inch square box and drops into the same kind of mounting locations. Depth is the thing to check: at 2-1/2 inches it is deeper than a shallow 1-1/2 inch square box, so confirm you have the cavity or standoff clearance behind the mounting surface.
2) How many conductors can I splice in a 32.3 cubic inch junction box?
Interior volume on the 9343-NK is 32.3 cubic inches. Under NEC box fill rules each 12 AWG conductor counts 2.25 cubic inches and each 14 AWG counts 2.00, with allowances also taken for grounds, clamps and devices, so a box this size gives you room for a substantial splice or pull point rather than a two-wire tap. Do your own fill calculation for the specific mix of conductors and fittings in the run.
3) Why use a fiberglass junction box instead of a steel one?
Fiberglass reinforced polyester does not rust. That is the whole argument for the 9343-NK over a steel or aluminum box: in damp, washdown, coastal or chemically aggressive locations, a metal enclosure corrodes at the seams and screw holes long before the wiring inside fails. Fiberglass is also non-conductive. Where you are in a dry interior and want to use the box body as part of an EMT ground path, steel is the simpler choice.
4) Does the 9343-NK have knockouts or hubs for conduit?
The 9343-NK is a blank-wall fiberglass box, indicated by the NK (no knockout) designation in the model number. You drill and bore your own openings where the run enters, then seal with the appropriate cord grip or conduit hub. That is the usual approach with fiberglass enclosures because it lets you place entries exactly where the raceway lands instead of working around factory holes.
5) Is a cover included with the Allied Moulded 9343-NK?
What you get is the box body itself, model 9343-NK, in fiberglass reinforced polyester at 4-1/16 x 4-1/16 x 2-1/2 inches. Plan on ordering the cover, any conduit hubs or connectors, and your mounting fasteners separately so the job is complete on the first trip.
6) Can I use this fiberglass box as a pull point in a long conduit run?
Yes, pulling and splicing conductors is exactly what the 9343-NK is built for. The square profile with 32.3 cubic inches inside gives you hand room to make up connections or pull through, and because entries are field-bored you can line the openings up straight with the raceway to keep the pull clean.
7) Is the 9343-NK suitable for an outdoor or washdown location?
The material holds up well in corrosion-prone and harsh environments, which is the reason facilities specify fiberglass over steel in car washes, treatment plants and coastal exteriors. Whether a given installation is watertight depends on the cover and the gasketing and sealing of the entries you bore, so match the cover and fittings to the environmental rating your spec calls for.
8) Where can I get the manufacturer spec sheet for the Allied Moulded 9343-NK?
Allied Moulded publishes a PDF spec sheet for the 9343-NK covering the FiberglassBox line, and it is linked in the product specifications. That document is the place to confirm cover part numbers and mounting detail before you release a submittal.
How fast can I get the Allied Moulded 9343-NK delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Allied Moulded 9343-NK come with a warranty?
Absolutely. The Allied Moulded 9343-NK is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Allied Moulded 9343-NK?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
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