RACO 8241 4 in. Square Welded ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$4.21
RACO 8241 4 in. Square Welded Steel Box with AC/MC/Flex Clamps, TS Bracket

RACO 8241 4 in. Square Welded Steel Box with AC/MC/Flex Clamps, TS Bracket

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Model: 8241

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

$4.21
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RACO 8241 4 in. Square Welded Steel Box with AC/MC/Flex Clamps, TS Bracket

The RACO 8241 is a 4 in. square, welded steel electrical box measuring 2-1/8 in. deep, engineered with built-in AC/MC/Flex clamps to accept Armored Cable, Metal Clad, MCI-A, and Flexible conduit wiring systems. Featuring three 1/2 in. knockouts and one 1/2 in.-3/4 in. combination knockout (TKO), this box offers flexible conduit entry for a variety of job-site conditions. The included TS bracket supports flush mounting to metal or wood studs, and the box is UL Listed for dependable, code-compliant performance in residential and commercial installations.

Key Features

  • Trade Size: 4 in. square box with a 2-1/8 in. deep body for generous interior wiring capacity.
  • Durable Construction: Welded steel construction delivers rugged strength and long-term durability on the job site.
  • Integrated Cable Clamps: Built-in clamps accommodate Armored Cable/Metal Clad/MCI-A/Flex wiring systems for secure cable termination without extra connectors.
  • Knockouts: Three 1/2 in. knockouts plus one 1/2 in.-3/4 in. combination knockout (TKO) provide flexible conduit entry options.
  • TS Bracket: Bracket is designed for mounting to metal or wood studs, enabling a clean flush installation.
  • Certified Performance: UL Listed for compliance with national electrical code requirements.

Certifications & Compliance

  • UL Listed

Technical Specifications

  • Product Type: Steel Box
  • Product Size: 4 in
  • Product Depth: 2.125 in
  • Product Shape: Square
  • Drawn or Welded: Welded
  • Bracket Type: TS, for Metal or Wood Studs
  • Wiring System: Armored Cable/Metal Clad/MCI-A/Flex
  • Knockouts: 1/2 in;1/2 - 3/4 in Combination (TKO)
  • Certified Listed: UL Listed

Typical Applications

  • Residential and Commercial Wiring Installations
  • New Construction Metal or Wood Stud Mounting
  • Armored Cable (AC) and Metal Clad (MC) Cable Systems
  • Flexible Conduit (Flex) Wiring Installations
  • Flush-Mounted Device and Junction Boxes

Why RACO?

RACO builds this 4 in. square box from welded steel for rugged, dependable performance, with integrated AC/MC/Flex clamps that streamline cable installation on the job. Backed by UL Listing, the RACO 8241 delivers the code-compliant reliability electricians expect for both new construction and renovation wiring projects.

Manufacturer Resources

Spec Sheet

Product Specs

list_batch:
RACO-20260916
Product Type:
Outlet Box
Product Size:
4 in
Product Depth:
2.125 in
Product Shape:
Square
Drawn or Welded:
Welded
Bracket Type:
TS, for Metal or Wood Studs
Wiring System:
Armored Cable/Metal Clad/MCI-A/Flex
Knockouts:
1/2 in;1/2 - 3/4 in Combination (TKO)
Certified Listed:
UL Listed
Department:
Electrical
Product Subgroup:
Electrical Boxes
Product Group:
Boxes & Enclosures

RACO 8241 – Frequently Asked Questions

1) Does the RACO 8241 4 in. square box have built-in clamps for MC cable, or do I need separate connectors?
Clamps are built in. The 8241 has integral AC/MC/Flex clamps that accept Armored Cable, Metal Clad, MCI-A, and flexible conduit, so you land the cable directly in the box without buying separate connectors. If you are pulling NM (Romex), this is not the box for that wiring system.
2) Will the TS bracket on the RACO 8241 mount to metal studs as well as wood?
Both. The TS bracket is made for metal or wood studs and sets the box for a flush finish, which is what you want in new construction before drywall goes on. No added mounting ears or bar hangers needed.
3) How deep is the RACO 8241 4 in. square box, and will it hold a device plus several MC cables?
The body is 2-1/8 in. deep, which is the deepest standard 4 in. square steel box and gives you the most interior wiring room in that footprint. That depth is why electricians reach for it when several MC homeruns and a device have to share one box. The box is 4 in. square.
4) What size conduit can I bring into the RACO 8241?
Three 1/2 in. knockouts plus one 1/2 in. to 3/4 in. combination knockout (TKO). So 1/2 in. EMT or flex at any of the openings, and 3/4 in. at the TKO if you need the larger entry for a bigger pull.
5) What should I use instead of the RACO 8241 in a hazardous or classified area?
The RACO 8241 is UL Listed as a 4 in. square steel outlet box but it is not an explosionproof enclosure. For classified locations, the Appleton GRJ Series explosionproof conduit outlet box in malleable iron or the Appleton GRJS Series universal explosionproof conduit outlet box are the appropriate enclosure types, with the Appleton GRT75 malleable iron round conduit outlet box available where a round body suits the run better.
6) Is a welded steel box better than a drawn box for a 4 in. square install?
The 8241 is welded rather than drawn. Welded construction is how 4 in. square boxes get to the deeper 2-1/8 in. body and the square interior corners that come with it; drawn boxes are formed from one piece and run shallower. For MC-heavy junction and device work where fill is the constraint, welded is the one you want.
7) Is the RACO 8241 UL Listed for commercial work?
Yes, the 8241 is UL Listed, and it is used in both residential and commercial wiring installations. That listing is what inspectors look for on a steel outlet box; no other rating is claimed for it.
8) I am running plastic boxes on a residential tract job. Is the RACO 8241 the wrong choice?
If the wiring method is nonmetallic cable, yes. The 8241 is clamped for AC/MC/MCI-A/Flex and is a steel box. For residential nonmetallic work a Cantex EZ Series PVC multi-gang residential outlet box is the type to look at instead.
9) Do I still need a cover or ring with the RACO 8241?
Yes. The 8241 is the box, bracket, and clamps. Finishing it out takes a separate 4 in. square cover: a flat blank cover for a junction box, or a raised plaster/device ring sized to your wall thickness if a switch or receptacle is going in. Match the ring rise to the drywall so the device sits flush.
10) Is there a non-metallic alternative to the RACO 8241 for residential stud walls?
Yes. The RACO 8241 is a welded steel box with integrated clamps for Armored Cable, Metal Clad, MCI-A and Flex wiring systems, so it is matched to metallic cable. Where nonmetallic cable is being run in a residential stud wall, the Cantex EZ Box series PVC multi-gang residential outlet box is the non-metallic option, and it covers multi-gang device openings rather than a single 4 in. square body.
11) What is the manufacturer part number to order the RACO 4 in. square box with AC/MC clamps and TS bracket?
Order RACO model 8241. That number covers the 4 in. square welded steel box, 2-1/8 in. deep, with the AC/MC/Flex clamps and the TS bracket included. There is one configuration, so there is no finish or bracket option to specify.
How fast can I get the RACO 8241 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 RACO 8241 come with a warranty?
Absolutely. The RACO 8241 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 RACO 8241?
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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