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RACO 155 4 in. Drawn Steel Octagon Box with TS Bracket & AC/MC/Flex Clamps
Model: RACO-155
RACO 155 4 in. Drawn Steel Octagon Box with TS Bracket & AC/MC/Flex ClampsThe RACO 155 is a 4 in. octagon box built from drawn steel, engineered as a durable enclosure for junction and outlet wiring...
RACO
$10.93
RACO 153 4 in. Drawn Steel Octagon Box, 1-1/2 in. Deep, AC/MC/Flex Clamps
The RACO 153 is a 4 in. drawn steel octagon box built for dependable junction and outlet box applications in residential and commercial electrical systems. This drawn steel enclosure measures 1-1/2 in. deep and includes three 1/2 in. knockouts along with built-in AC/MC/Flex clamps, allowing electricians to terminate Armored Cable, Metal Clad, and Flex wiring systems directly into the box without additional connectors. Designed for use without a mounting bracket, the RACO 153 is suited for applications where the box is secured directly to framing or an existing structure. Backed by UL Listing, this octagon box delivers the code-compliant performance electrical professionals expect from RACO.
Key Features
- Trade Size: 4 in. octagon configuration provides a standard, widely compatible footprint for ceiling fixtures, outlet devices, and junction points.
- Durable Drawn Steel Construction: The box is drawn from steel rather than welded, resulting in a one-piece, seamless enclosure that resists deformation and provides consistent strength at every wiring point.
- Box Depth: At 1-1/2 in. deep, the interior offers adequate volume for splicing conductors, mounting devices, and accommodating wiring systems without overcrowding.
- Triple Knockouts: Three 1/2 in. KO's give installers multiple, clearly marked entry points for conduit or cable, simplifying layout planning on the job site.
- Integrated AC/MC/Flex Clamps: Built-in clamps are engineered for Armored Cable, Metal Clad, and Flex wiring systems, securing cable directly at the knockout and reducing the need for separate cable connectors.
- No-Bracket Design: Supplied without a mounting bracket, this box configuration is intended for installations where the box is fastened directly using separately installed mounting hardware.
Certifications & Compliance
- UL Listed
Technical Specifications
- Product Type: Steel Boxes and Covers
- Product Size: 4 in
- Product Depth: 1.5 in
- Drawn or Welded: Drawn
- Bracket Type: No Bracket
- Wiring System: Armored Cable/Metal Clad/MCI-A/Flex
- Knockouts: 1/2 in
- Certified Listed: UL Listed
Typical Applications
- Residential and Commercial Junction Box Installations
- Ceiling-Mounted Outlet and Fixture Boxes
- Armored Cable (AC), Metal Clad (MC), and Flex Wiring System Terminations
- New Construction Electrical Rough-In
- Electrical Renovation and Retrofit Projects
Why RACO?
RACO builds the 153 octagon box from drawn steel for a strong, seamless enclosure, and integrates AC/MC/Flex clamps directly into the box to streamline cable termination for Armored Cable, Metal Clad, and Flex wiring systems. With three 1/2 in. knockouts, a 1-1/2 in. depth, and UL Listing, the RACO 153 gives electrical professionals a reliable, code-compliant box for standard 4 in. junction and outlet applications.
Manufacturer Resources
Spec Sheet
Product Specs
- list_batch:
- RACO-20260916
- Product Type:
- Ceiling Box
- Product Size:
- 4 in
- Product Depth:
- 1.5 in
- Drawn or Welded:
- Drawn
- Bracket Type:
- No Bracket
- Wiring System:
- Armored Cable/Metal Clad/MCI-A/Flex
- Knockouts:
- 1/2 in
- Certified Listed:
- UL Listed
- Department:
- Electrical
- Product Subgroup:
- Electrical Boxes
- Product Group:
- Boxes & Enclosures
RACO RACO153 – Frequently Asked Questions
1) Can I land MC cable directly in the RACO 153 octagon box, or do I need separate connectors?
The RACO 153 has AC/MC/Flex clamps built into the box, so Armored Cable, Metal Clad, MCI-A, and Flex land directly at the knockout without buying separate cable connectors. If you are running EMT or other conduit instead, you would still need the appropriate fitting at the 1/2 in. knockout.
2) Does the RACO 153 come with a mounting bracket?
No bracket. The 153 is the no-bracket version of the 4 in. octagon box, so it gets fastened directly to framing or existing structure with separately supplied screws or nails. If you want a box that nails to the face of a stud for a set drywall depth, you need a bracketed octagon box instead.
3) Is a 1-1/2 in. deep 4 in. octagon box deep enough for a ceiling fixture?
At 1-1/2 in. deep in a 4 in. octagon footprint, the 153 handles standard ceiling outlet and fixture boxes plus splices. For fixtures with bulky canopy wiring or a crowded junction, step up to a deeper octagon. The 153 is not rated as a fan-support box, so do not hang a paddle fan from it.
4) Is the RACO 153 UL Listed for inspected commercial work?
The 153 is UL Listed. It is the standard 4 in. octagon junction and outlet box for both residential and commercial rough-in, including retrofit work.
5) How many cable entries does the RACO 153 have?
Three 1/2 in. knockouts, which is what lets you feed through and continue a circuit, or bring in two home runs plus a switch leg, from one 4 in. octagon box.
6) Will the RACO 153 take a standard 4 in. round or octagon cover and fixture strap?
Yes. The 153 uses the standard 4 in. octagon footprint, so standard 4 in. octagon and round blank covers, fixture straps, and extension rings line up on it. Covers and straps are ordered separately.
7) What is the difference between a drawn steel box and a welded one?
Drawn means the box is formed from a single piece of steel rather than assembled from pieces and welded. The RACO 153 is drawn, so there are no seams at the corners to open up when it is hammered into place or pulled against.
8) What part number do I order for the RACO 4 in. octagon box with AC/MC clamps and no bracket?
Order RACO 153. That single model covers the 4 in. drawn octagon box, 1-1/2 in. deep, three 1/2 in. knockouts, AC/MC/Flex clamps, no bracket.
How fast can I get the RACO RACO153 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
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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 RACO153 come with a warranty?
Absolutely. The RACO RACO153 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 RACO153?
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