Orbit 4SB-MC-MS 4" Square Weld...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$2,185.64
Orbit 4SB-MC-MS 4" Square Welded Box with MC Clamps and MS Bracket, Pack of 100

Orbit 4SB-MC-MS 4" Square Welded Box with MC Clamps and MS Bracket, Pack of 100

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Model: 4SB-MC-MS

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

$2,185.64
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Orbit 4SB-MC-MS 4" Square Welded Box with MC Clamps and MS Bracket

The Orbit 4SB-MC-MS is a 1-1/2" deep, 4" square (4S) electrical box built with fully welded seams for a rigid, durable enclosure that resists flexing and gapping at the corners over the life of the installation. This box arrives pre-equipped with integral MC clamps for fast, secure termination of MC (metal-clad) cable directly into the enclosure, eliminating the need for separate connectors in many applications. It also includes an MS mounting bracket, giving installers a ready-to-use mounting solution for attaching the box to studs, joists, or other framing members without sourcing a bracket separately. Together, the welded 4" square body, 1-1/2" depth, MC clamp provisions, and MS bracket make this a practical, job-ready box for electricians who need a dependable junction or device box for MC cable runs in commercial and residential construction.

Key Features

  • 4" Square (4S) Box: Standard 4-inch square footprint compatible with common covers, mud rings, and device plates used throughout commercial and residential wiring systems.
  • 1-1/2" Depth: Provides adequate interior volume for conductor fill and splicing while fitting standard wall and ceiling cavity depths.
  • Fully Welded Construction: Seams are welded rather than simply crimped or folded, delivering a rigid box that holds its shape during handling, mounting, and cable pulling.
  • Integral MC Clamps: Built-in clamps are designed to secure MC (metal-clad) cable directly at the box, streamlining rough-in and reducing the parts count needed on the job.
  • MS Mounting Bracket Included: The included MS bracket simplifies attachment to framing, supporting efficient, consistent installation across multiple boxes on a job.
  • Job-Ready Configuration: Combining the box, clamps, and bracket into one part number reduces the number of separate SKUs an electrical contractor needs to stock and pull for MC cable rough-in work.

Technical Specifications

  • Box Size: 4" Square (4S)
  • Depth: 1-1/2"
  • Cable Clamp Type: MC Clamps
  • Mounting Bracket: MS Bracket
  • Construction: Welded

Typical Applications

  • MC Cable Rough-In for Commercial Buildings
  • Residential New Construction Wiring
  • Junction and Device Box Installations on Framed Walls and Ceilings
  • Panel and Device Wiring Requiring 4" Square Enclosures
  • Electrical Contractor Rough-In Where Bracket-Mounted Boxes Are Specified

Why Orbit?

Orbit's 4SB-MC-MS box combines a welded 4" square enclosure, integral MC cable clamps, and an included MS mounting bracket into a single, streamlined part designed for real-world rough-in work. For electricians who need a rigid, code-friendly junction or device box that mounts quickly and terminates MC cable without extra hardware, this configuration helps keep jobs moving while reducing the number of separate components to source, stock, and install.

Manufacturer Resources

Product Specs

list_batch:
ORB-20260924
Product Type:
Outlet Box
Configuration:
1-1/2" Deep
Connection Type:
MC Clamps
Department:
Electrical
Product Subgroup:
Electrical Boxes
Product Size:
1-1/2"
Pack size (unit):
100
Product Group:
Boxes & Enclosures

Orbit 4SB-MC-MS – Frequently Asked Questions

1) Does the Orbit 4SB-MC-MS 4 inch square box need separate MC cable connectors?
No. The 4SB-MC-MS comes with integral MC clamps built into the box, so metal-clad cable terminates directly at the enclosure and in many applications no separate connectors are needed. That is the main reason electricians pull this part number instead of a plain 4S box plus loose connectors.
2) How deep is the Orbit 4SB-MC-MS box, and will it fit a standard stud wall?
It is a 1-1/2 inch deep 4 inch square (4S) box, which sits within the depth of standard framed wall and ceiling cavities. If you need more interior volume for heavy conductor fill or multiple splices, step up to a deeper 4S box, such as the RACO 232MS at 2-1/8 inches deep.
3) Do I have to buy a mounting bracket separately for this Orbit 4 inch square box?
No, the MS mounting bracket ships on the box. It attaches to studs, joists, or other framing members, so the box is ready to nail or screw up at rough-in without sourcing a bracket.
4) Can I use this box for NM (Romex) cable instead of MC?
The clamps in the 4SB-MC-MS are MC clamps, made for metal-clad cable. For non-metallic cable in residential work, use a box built for NM, such as the Allied Moulded P-241QT FlexBox thermoplastic switch/receptacle box or the Cantex EZ20SB EZ Box non-metallic steel stud box.
5) What is the closest equivalent to the Orbit 4SB-MC-MS if I need a deeper 4 inch square welded box?
The RACO 232MS is a 4 inch square welded box rated 600V with a 2-1/8 inch depth, compared with the 1-1/2 inch depth of the Orbit 4SB-MC-MS. Both share the 4 inch square footprint that works with common covers and mud rings, so the choice comes down to the interior volume you need for conductor fill and the cavity depth you are mounting into.
6) Is the Orbit 4SB-MC-MS sold individually or in a case?
It ships as a pack of 100 boxes under one part number, 4SB-MC-MS. That quantity suits contractors stocking a truck or rough-in crew rather than someone replacing a single box.
7) Will standard mud rings and device covers fit the Orbit 4SB-MC-MS?
Yes. It uses the standard 4 inch square footprint, so the common 4S covers, mud rings, and device plates used in commercial and residential wiring systems land on it.
8) I need a 4 inch square box for an exposed outdoor run with threaded hubs. Is this the right one?
No. The 4SB-MC-MS is a bracket-mounted box with MC clamps, built for concealed rough-in on framed walls and ceilings. For an exposed run on threaded conduit, look at a hub-type box like the Thomas and Betts Red-Dot 2IH3-2, a 2-gang RT box with three 3/4 inch hubs.
9) Can I use the Orbit 4SB-MC-MS in a steel stud wall with non-metallic cable instead?
The Orbit 4SB-MC-MS comes with integral MC clamps and an MS bracket, so it is set up for metal-clad cable on framing members. If the wall is steel stud and you are running non-metallic cable, the Cantex EZ20SB EZ Box 1-gang non-metallic steel stud box is purpose-built for steel stud mounting instead.
10) Is a Thomas & Betts Red-Dot 2IH3-2 a substitute for the Orbit 4SB-MC-MS since both ship 100 per pack?
They are not interchangeable. The Thomas & Betts Red-Dot 2IH3-2 is a 2-gang RT box with three 3/4 inch hubs, meaning conduit threads into the hubs. The Orbit 4SB-MC-MS is a 4 inch square welded box with integral MC clamps and an MS mounting bracket for cable termination on framing. Both are sold in packs of 100, but the cable method and body style differ.
11) What should I use instead of the Orbit 4SB-MC-MS for a range or dryer outlet?
The Orbit 4SB-MC-MS is a general-purpose 4 inch square junction and device box for MC cable rough-in. For a dedicated range or dryer receptacle rough-in, the Pass & Seymour P242RRD thermoplastic range and dryer box is configured for that application.
12) What does welded construction get me over a crimped electrical box?
The seams on the 4SB-MC-MS are welded rather than crimped or folded, so the body stays rigid and does not gap at the corners during handling, mounting, or cable pulling. On a job where boxes get hit by other trades before the drywall goes on, that matters.
13) Can the Orbit 4SB-MC-MS be used as a junction box, or only as a device box?
Both. The 1-1/2 inch depth gives room for splicing, and it is used as a junction box or a device box on framed walls and ceilings, including panel and device wiring that calls for a 4S enclosure.
14) Which 4 inch square box do I pick if I want a metal box but do not need built-in MC clamps?
The Orbit 4SB-MC-MS carries integral MC clamps, which is what you want when terminating metal-clad cable at the box without separate connectors. If the clamps are not needed, the RACO 232MS is a 4 inch square welded box in the STAB-iT series rated 600V, at a 2-1/8 inch depth.
How fast can I get the Orbit 4SB-MC-MS 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 Orbit 4SB-MC-MS come with a warranty?
Absolutely. The Orbit 4SB-MC-MS 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 Orbit 4SB-MC-MS?
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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