Allied Moulded 3303-NK Fibergl...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$5.97
Allied Moulded 3303-NK Fiberglass Reinforced 3-Gang Residential/Receptacle Switch Box

Allied Moulded 3303-NK Fiberglass Reinforced 3-Gang Residential/Receptacle Switch Box

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Model: 3303-NK

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

$5.97
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Allied Moulded 3303-NK Fiberglass Reinforced 3-Gang Residential/Receptacle Switch Box

The Allied Moulded 3303-NK is a fiberglass reinforced thermoset polyester 3-gang residential/receptacle electrical switch box, part of the FiberglassBox™ line. Measuring 5-11/16-Inch x 3-3/4-Inch x 3-9/16-Inch with a generous 56.5-cubic-inch interior capacity, this box is engineered to house switches and receptacles in residential wiring applications where corrosion resistance and non-conductive construction are required. The thermoset polyester material provides a durable, moisture- and corrosion-resistant alternative to traditional metal boxes.

Key Features

  • Dimensions: 5-11/16-Inch x 3-3/4-Inch x 3-9/16-Inch overall box size for standard 3-gang device mounting.
  • Interior Capacity: 56.5-cubic-inch volume provides ample room for wiring devices, conductors, and connections.
  • Durable Construction: Fiberglass reinforced thermoset polyester material resists corrosion, moisture, and impact common to residential installations.
  • 3-Gang Configuration: Designed to accommodate three switches, receptacles, or a combination of residential wiring devices in a single box.
  • Non-Conductive Material: Thermoset polyester construction eliminates the grounding and corrosion concerns associated with metallic boxes.
  • FiberglassBox&trad Series: Part of Allied Moulded's FiberglassBox product line built for residential/receptacle switch box applications.

Technical Specifications

  • Product Type: 3-Gang Residential/Receptacle Electrical Switch Box
  • Material: Fiberglass Reinforced Thermoset Polyester
  • Dimensions: 5-11/16-Inch x 3-3/4-Inch x 3-9/16-Inch
  • Interior Capacity: 56.5-Cubic-Inch
  • Gang Configuration: 3-Gang

Typical Applications

  • Residential Switch and Receptacle Installations
  • New Construction Wiring Projects
  • Multi-Device Wall Box Applications
  • Locations Requiring Corrosion-Resistant, Non-Metallic Boxes

Why Allied Moulded?

Allied Moulded's FiberglassBox&trad 3303-NK is built from fiberglass reinforced thermoset polyester for long-term durability and corrosion resistance where metallic boxes fall short. With a spacious 56.5-cubic-inch capacity and precise 3-gang sizing, this switch box gives electrical professionals a reliable, code-ready solution for residential switch and receptacle installations.

Manufacturer Resources

Spec Sheet

Product Specs

list_batch:
ALM-20260924
Product Type:
Electrical Switch Box
Configuration:
3-Gang
Department:
Electrical
Product Group:
Boxes & Enclosures
Product Subgroup:
Electrical Boxes
Product Material:
Fiberglass Reinforced Thermoset Polyester

Allied Moulded 3303-NK – Frequently Asked Questions

1) Do I need to run a ground to the box itself on a fiberglass electrical box?
No. Fiberglass reinforced thermoset polyester is non-conductive, so the box is not part of the grounding path the way a steel box is. You still land the equipment grounding conductors on the devices, but there is no box bonding screw to worry about.
2) Will the Allied Moulded 3303-NK take three standard switches and a three-gang cover plate?
Yes. It is a 3-gang box sized for standard device mounting, so any mix of three switches, receptacles or combination devices goes in, and a standard 3-gang wall plate covers it.
3) Is a fiberglass box better than PVC or steel for a damp or corrosive location?
That is exactly where the 3303-NK earns its place. Thermoset polyester resists moisture, corrosion and impact, so it holds up in spots where a steel box would rust out, and it will not deform the way thinner thermoplastic can. For a dry, ordinary interior wall on a tight budget, a standard non-metallic device box does the same job; the fiberglass version is what you reach for when corrosion or durability is the concern.
4) Is the 3303-NK meant for new construction or for retrofitting into finished walls?
New construction wiring is the intended use. It is a new-work box for open-stud framing, not a remodel box with wing clamps for cutting into existing drywall. If the wall is already closed up, you want an old-work or remodel box instead.
5) What is the exact part number to order this Allied Moulded 3-gang fiberglass box?
Order it as Allied Moulded 3303-NK, part of the FiberglassBox line. That is the manufacturer part number for the 3-gang, 56.5 cubic inch residential switch and receptacle box.
How fast can I get the Allied Moulded 3303-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 3303-NK come with a warranty?
Absolutely. The Allied Moulded 3303-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 3303-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
Why buy the Allied Moulded 3303-NK from ZenSupply?
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