Allied Moulded FB-3 Polycarbon...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$92.14
Allied Moulded FB-3 Polycarbonate Floor Box Assembly, 24.5 Cubic Inch

Allied Moulded FB-3 Polycarbonate Floor Box Assembly, 24.5 Cubic Inch

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Model: ALMFB-3

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

$92.14
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Allied Moulded FB-3 Polycarbonate Floor Box Assembly, 24.5 Cubic Inch

The Allied Moulded FB-3 is a polycarbonate floor box assembly engineered to provide a durable, non-metallic enclosure for power and low-voltage wiring devices installed in floor applications. Measuring 3.94-Inch x 3-Inch with a generous 24.5-cubic-inch interior capacity, the FB-3 gives installers ample room for device termination, wire bending, and connector clearance in commercial and residential floor outlet installations. Built from tough polycarbonate material, this floor box assembly resists corrosion, cracking, and impact better than many traditional metallic enclosures, making it a reliable choice for concrete slab and raised-floor wiring systems.

Key Features

  • Compact Footprint: 3.94-Inch x 3-Inch overall dimensions allow the FB-3 to fit into standard floor box cutouts and tight installation spaces.
  • Generous Interior Volume: 24.5-cubic-inch capacity provides ample room for wiring devices, connectors, and conductor slack, simplifying rough-in and device termination.
  • Durable Polycarbonate Construction: Non-metallic polycarbonate material resists corrosion and impact damage, offering long-term durability in floor-level installations where moisture and foot traffic are concerns.
  • Assembly-Ready Design: Supplied as a complete floor box assembly, streamlining installation for electricians working on floor outlet and device mounting projects.
  • Non-Conductive Housing: Polycarbonate construction adds an extra layer of electrical isolation compared to metallic floor boxes, reducing risk of stray conductivity in the enclosure.

Technical Specifications

  • Product Type: Floor Box Assembly
  • Material: Polycarbonate
  • Overall Dimensions: 3.94-Inch x 3-Inch
  • Interior Capacity: 24.5 Cubic Inch
  • Model: FB-3

Typical Applications

  • Commercial and Residential Floor Outlet Installations
  • Concrete Slab and Raised-Floor Wiring Systems
  • Power and Low-Voltage Device Mounting
  • Renovation and New Construction Electrical Rough-In
  • Non-Metallic Enclosure Applications Requiring Corrosion Resistance

Why Allied Moulded?

Allied Moulded builds the FB-3 floor box assembly from rugged polycarbonate material designed to withstand the demands of floor-level electrical installations. With its 3.94-Inch x 3-Inch footprint and 24.5-cubic-inch interior capacity, this assembly gives electrical professionals a dependable, non-metallic enclosure option that resists corrosion and impact while providing ample working room for wiring devices. Choose Allied Moulded for durable, code-ready floor box solutions in commercial and residential electrical projects.

Manufacturer Resources

Spec Sheet

Product Specs

list_batch:
ALM-20260924
Product Type:
Floor Box Assembly
Department:
Electrical
Product Group:
Boxes & Enclosures
Product Subgroup:
Floor Boxes
Product Material:
Polycarbonate

Allied Moulded ALMFB-3 – Frequently Asked Questions

1) How much wiring volume does the Allied Moulded FB-3 floor box give me?
The FB-3 floor box assembly holds 24.5 cubic inches. That is the number you use for conductor fill calculations when you are counting conductors, devices, clamps and grounds in the box, and it leaves working room for wire bending and connector clearance behind a device.
2) What size opening does the FB-3 floor box need?
Overall the FB-3 measures 3.94 x 3 inches, so it drops into standard floor box cutouts and works where the slab or floor cavity is tight. Map the two figures to your own layout before you cut the deck.
3) Is the FB-3 a metal floor box or non-metallic?
Non-metallic. The FB-3 is moulded polycarbonate, so the housing is non-conductive and it will not corrode the way a steel or cast box can in a slab where moisture is present. It also takes impact from foot traffic without cracking the way brittle enclosures do.
4) Can I use the Allied Moulded FB-3 for low voltage as well as power?
Yes. The FB-3 is built to house power and low-voltage wiring devices alike, which is why it shows up on data and AV floor drops as often as on receptacle drops. If you are running both in one location, keep the separation your installation requires between the two systems.
5) Will the FB-3 work in a concrete pour, or is it only for raised floors?
Both. Allied Moulded lists the FB-3 for concrete slab work and for raised-floor wiring systems, in new construction rough-in and in renovation retrofits, commercial or residential.
6) What exactly do I order to get an Allied Moulded FB-3, and what comes with it?
Order it by manufacturer part number FB-3 from Allied Moulded. It ships as a complete floor box assembly rather than a loose shell, so the box comes ready to set and terminate. Wiring devices and the finish cover plate are specified separately to suit the outlet you are putting in.
7) Where can I get the manufacturer spec sheet for the FB-3 floor box?
Allied Moulded publishes a PDF spec sheet for the FB-3, and it is linked on the product record. That is the document to hand a plan reviewer or attach to a submittal package when the drawing calls out a non-metallic floor box.
How fast can I get the Allied Moulded ALMFB-3 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 ALMFB-3 come with a warranty?
Absolutely. The Allied Moulded ALMFB-3 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 ALMFB-3?
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 ALMFB-3 from ZenSupply?
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