Allied Moulded FlexBox Series ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
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Allied Moulded FlexBox Series Thermoplastic Switch Box

Allied Moulded FlexBox Series Thermoplastic Switch Box

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Model: P-201

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

$1.31
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Allied Moulded FlexBox Series Thermoplastic Switch Box

The Allied Moulded FlexBox® Series Thermoplastic Switch Box is a family of non-metallic electrical boxes engineered for durable, code-conscious rough-in work in residential and light commercial wiring applications. Molded of tough thermoplastic material, this family is available in configurations ranging from 1-Gang boxes with interior volumes of 20.5, 22.5, and 24 cubic inches up to a 4-Gang box offering 74.8 cubic inches of interior capacity, giving installers ample room for device connections, wire nuts, and conductor fill on switch and receptacle installations. Whether the application calls for a compact single-device box or a larger multi-gang box for grouped switches and receptacles, the FlexBox® Series delivers a reliable, non-metallic alternative to traditional steel boxes. Manufactured in the USA, these boxes are purpose-built for switch and receptacle installations in residential and light commercial construction.

Key Features

  • Gang Configuration Range: Available in 1-Gang and 4-Gang configurations to match single-device or multi-device wall openings.
  • Cubic Capacity Range: Interior volumes span from 20.5-Cubic-Inch and 22.5-Cubic-Inch up to 24-Cubic-Inch (1-Gang options) and 74.8-Cubic-Inch (4-Gang option), providing ample room for conductors, devices, and wire connections.
  • Durable Construction: Molded thermoplastic material resists cracking and corrosion compared to metal boxes, well-suited for residential wiring environments.
  • FlexBox® Series: Part of Allied Moulded's FlexBox® line of thermoplastic electrical boxes designed for residential and receptacle applications.
  • Residential/Receptacle Use: Purpose-built for switch and receptacle installations in residential and light commercial construction.
  • Made in USA: Manufactured domestically for consistent quality and code-conscious rough-in performance.

Technical Specifications

  • Series: FlexBox®
  • Gang Configuration: 1-Gang and 4-Gang options
  • Interior Capacity Range: 20.5-Cubic-Inch to 74.8-Cubic-Inch depending on configuration
  • Material: Thermoplastic
  • Country of Origin: USA

Typical Applications

  • Residential Switch and Receptacle Installations
  • Single-Gang and Multi-Gang Wall Device Boxes
  • New Construction Wiring Rough-In
  • Light Commercial Electrical Installations
  • Retrofit and Remodel Wiring Projects

Why Allied Moulded?

Allied Moulded's FlexBox® thermoplastic boxes are built to deliver a durable, non-metallic alternative to traditional steel boxes for residential switch and receptacle wiring. With options spanning compact 1-Gang boxes up to larger 74.8-cubic-inch 4-Gang boxes, this family gives electricians and contractors a practical, reliable choice for everyday residential wiring needs, backed by domestic USA manufacturing.

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Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Switch Box
Configuration:
1-Gang
Series:
FlexBox
Department:
Electrical
Product Group:
Boxes & Enclosures
Product Subgroup:
Electrical Boxes
list_batch:
ALM-20260924
Product Material:
Thermoplastic
Country of Origin:
United States
Product Height:
3 3/4 inches

Allied Moulded P-201 – Frequently Asked Questions

1) Which Allied Moulded FlexBox box do I need for a single switch or receptacle?
For a single device, the FlexBox 1-Gang boxes come in three interior volumes: 20.5 cubic inches (P-201), 22.5 cubic inches (P-122OW), and 24 cubic inches (P-241). Pick the volume by your conductor and device fill count, not by the device itself. If you are ganging four devices in one opening, the 4-Gang P-764 gives 74.8 cubic inches.
2) Does Allied Moulded make a 2-gang or 3-gang FlexBox switch box?
The FlexBox switch box run here is 1-Gang and 4-Gang only. The 1-Gang choices are 20.5, 22.5 and 24 cubic inches; the multi-gang choice is the 74.8 cubic inch 4-Gang. If your wall opening is two or three devices wide, this group won't cover it and you'd need a different Allied Moulded box.
3) Is 20.5 cubic inches enough box fill for a switch with 12 AWG conductors?
Box fill is a count, not a guess: each 12 AWG conductor counts 2.25 cubic inches and a yoked device counts as two conductors of the largest wire in the box. A 20.5 cubic inch FlexBox (P-201) gives you room for roughly nine 12 AWG allowances, which covers a switch loop with two cables in and a device. Move up to the 22.5 (P-122OW) or 24 cubic inch (P-241) box when you're splicing three or more cables or adding a dimmer or smart device with a bulky body.
4) Is a thermoplastic box like the FlexBox a better choice than a steel switch box?
Thermoplastic is the pick when you want a non-conductive box that won't corrode or need bonding to the box itself. The FlexBox is molded thermoplastic and resists cracking and corrosion where a steel box would rust in damp framing. Steel still wins where you're running metal conduit or AC/MC cable that needs a mechanical connector and a bonded metal enclosure, which is the usual reason a light commercial spec calls for steel instead.
5) Are Allied Moulded FlexBox boxes made in the USA?
Yes. The FlexBox thermoplastic switch boxes are manufactured in the United States, which matters if you are bidding public or institutional work with domestic-content requirements.
6) How deep is the FlexBox switch box, and will it fit a 2x4 stud wall?
The FlexBox switch box is listed at 3-3/4 inches in height. A 2x4 stud is 3-1/2 inches deep, so plan the box orientation accordingly: the 3-3/4 inch figure is the box height dimension, and depth of a nail-on device box is what governs stud clearance. Confirm the depth on the Allied Moulded spec sheet before framing tight cavities.
7) Can I use the FlexBox switch box for a remodel or retrofit, not just new construction?
The FlexBox family is aimed at rough-in on new construction plus retrofit and remodel wiring, for residential and light commercial switch and receptacle installations. For remodel work, note these are switch/device boxes rather than a cut-in box, so you need access to framing to mount them.
How fast can I get the Allied Moulded P-201 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 P-201 come with a warranty?
Absolutely. The Allied Moulded P-201 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 P-201?
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 P-201 from ZenSupply?
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