Allied Moulded 9313-EWK Fiberg...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
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Allied Moulded 9313-EWK Fiberglass 3-Gang Electrical Switch Box

Allied Moulded 9313-EWK Fiberglass 3-Gang Electrical Switch Box

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Model: 9313-EWK

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

$9.11
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Allied Moulded 9313-EWK Fiberglass 3-Gang Electrical Switch Box

The Allied Moulded 9313-EWK is a 3-Gang residential/receptacle electrical switch box built from Fiberglass Reinforced Thermoset Polyester as part of the FiberglassBox™ line. Measuring 5-15/16-Inch x 3-1/4-Inch x 2-7/8-Inch with a 42.5-Cubic-Inch interior capacity, this switch box is engineered to house multiple devices — switches, receptacles, or a combination — within a single rugged, non-metallic enclosure. Fiberglass reinforced thermoset construction gives the 9313-EWK excellent dimensional stability and long-term durability compared to standard plastic boxes, making it a dependable choice for residential wiring projects where a 3-gang configuration is required.

Key Features

  • 3-Gang Configuration: Sized to accommodate three switches, receptacles, or devices in a single box for consolidated residential wiring runs.
  • Durable Construction: Fiberglass Reinforced Thermoset Polyester material resists cracking, warping, and corrosion better than standard plastic boxes, supporting long service life.
  • Compact Footprint: Overall dimensions of 5-15/16-Inch x 3-1/4-Inch x 2-7/8-Inch fit standard wall cavity installations.
  • 42.5-Cubic-Inch Capacity: Generous internal volume provides ample room for wiring, devices, and connections within a 3-gang layout.
  • FiberglassBox™ Line: Part of Allied Moulded's established FiberglassBox™ product series, designed specifically for residential and receptacle switch applications.
  • Non-Metallic Design: Fiberglass construction eliminates concerns over metal corrosion and offers electrical insulating properties inherent to thermoset polyester material.

Technical Specifications

  • Product Type: Electrical Switch Box
  • Configuration: 3-Gang
  • Product Material: Fiberglass Reinforced Thermoset Polyester
  • Dimensions: 5-15/16-Inch x 3-1/4-Inch x 2-7/8-Inch
  • Capacity: 42.5-Cubic-Inch
  • Series: FiberglassBox™

Typical Applications

  • Residential Switch and Receptacle Installations
  • New Construction Wall Wiring
  • Multi-Device Wall Boxes for Switches and Outlets
  • Renovation and Remodel Electrical Upgrades

Why Allied Moulded?

Allied Moulded's Fiberglass Reinforced Thermoset Polyester construction delivers a switch box built to outperform standard plastic alternatives in durability and dimensional stability. The 9313-EWK's 3-gang, 42.5-cubic-inch design gives electricians and homeowners a reliable, non-metallic solution for consolidated residential wiring installations.

Manufacturer Resources

Spec Sheet

Product Specs

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

Allied Moulded 9313-EWK – Frequently Asked Questions

1) How many devices will the Allied Moulded 9313-EWK hold?
It's a 3-gang box, so it takes three devices in any mix, three switches, three receptacles, or a switch-and-outlet combination, in one enclosure. Interior volume is 42.5 cubic inches, which is the number you use for NEC box fill when you count conductors, devices and clamps.
2) What are the outside dimensions of the 9313-EWK, and will it fit in a 2x4 stud wall?
Overall size is 5-15/16 x 3-1/4 x 2-7/8 inches. The 2-7/8 inch depth clears the 3-1/2 inch cavity depth of a nominal 2x4 stud wall, so it sets in standard framing without furring. Confirm your insulation and sheathing plan allows the full depth behind the drywall line.
3) Can I use the 9313-EWK with metal-clad or conduit wiring, or is it for NM cable only?
It's a non-metallic box, catalogued for residential switch and receptacle wiring with NM cable. Non-metallic enclosures break the metal equipment-grounding path, so if your job is run in MC cable or metal conduit where the raceway serves as the ground, use a metal box instead. On a non-metallic system the device grounding conductors carry the ground through.
4) Is a fiberglass box better than a plastic one for a 3-gang wall box?
The material here is fiberglass reinforced thermoset polyester, not thermoplastic. Thermoset holds its shape and doesn't soften or creep, which matters on a wide 3-gang opening where a racked box throws all three devices out of plumb behind the plate. It also won't corrode. If you're doing high-volume residential rough-in on a budget, a standard thermoplastic nail-on box is the cheaper route; pick the fiberglass where dimensional stability and long service life justify it.
5) Is the 9313-EWK suitable for remodel work in an existing wall?
Allied Moulded lists renovation and remodel electrical upgrades among its applications alongside new-construction rough-in. Bear in mind it's a full-depth 2-7/8 inch box, so in a finished wall you need cavity access at the stud to fasten it; for a cut-in with no stud access you want an old-work box with retaining ears instead.
6) Will a standard 3-gang wall plate fit this box?
Yes. The 9313-EWK is a standard 3-gang device box, so a three-gang cover plate in any standard configuration (toggle, decorator/rocker, duplex, or a combination plate) lines up with the mounted devices. Match the plate openings to the devices you install, not to the box.
7) Is 42.5 cubic inches enough for three switches with several cables coming in?
42.5 cubic inches is generous for a 3-gang. Under NEC box fill each 14 AWG conductor counts 2.00 cubic inches and each 12 AWG counts 2.25, with each device counting double its largest conductor and all grounds together counting as one. That leaves real room for multiple switch legs and travellers in a three-device box. Run your own count for the specific cables at the location.
8) What is the exact part number to order this Allied Moulded 3-gang fiberglass box?
Order it as Allied Moulded 9313-EWK, part of the FiberglassBox line. That single manufacturer part number covers the box as described, 3-gang, 42.5 cubic inches; there are no finish or size options to specify.
How fast can I get the Allied Moulded 9313-EWK 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 9313-EWK come with a warranty?
Absolutely. The Allied Moulded 9313-EWK 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 9313-EWK?
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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