Orbit 4SDB-MKO 4" Square Deep ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,190.70
Orbit 4SDB-MKO 4" Square Deep Box, Welded with MKO, Pack of 100

Orbit 4SDB-MKO 4" Square Deep Box, Welded with MKO, Pack of 100

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Model: 4SDB-MKO

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

$1,190.70
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Orbit 4SDB-MKO 4" Square Deep Box, Welded with MKO

The Orbit 4SDB-MKO is a 4" square (4S) electrical box built in a 2-1/8" deep configuration, engineered as a welded box with an MKO (mounting knockout) configuration for reliable, code-compliant junction and device installations. This deep box provides added interior volume compared to standard-depth 4-square boxes, giving electricians extra room for wire splices, device mounting, and conduit terminations in commercial and residential rough-in work. The welded construction delivers a solid, one-piece body designed to stand up to demanding job-site handling and long-term service.

Key Features

  • Trade Size: 4" square (4S) footprint sized for standard device rings, covers, and mud rings used in commercial and residential wiring.
  • Deep Box Depth: 2-1/8" deep body provides additional interior volume for splices, devices, and multiple conduit entries versus shallow 4-square boxes.
  • Welded Construction: Welded seams create a durable, one-piece box body for consistent strength and a secure ground path through the enclosure.
  • MKO Configuration: Equipped with an MKO (mounting knockout) arrangement to support common conduit and mounting connection needs at the job site.
  • Standard 4-Square Format: Compatible with the wide range of covers, mud rings, and device plates designed for the industry-standard 4" square box footprint.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Typical Applications

  • Commercial and Industrial Electrical Rough-In
  • Junction and Pull Box Installations
  • Device and Outlet Box Mounting
  • Conduit and Raceway System Terminations
  • New Construction and Renovation Wiring Projects

Why Orbit?

Orbit's 4SDB-MKO deep box combines a welded, one-piece body with an MKO configuration to give electrical contractors a dependable 4" square box for demanding installations. The added 2-1/8" depth and durable welded construction make it a practical choice for professionals who need extra interior room without sacrificing structural integrity. Choose Orbit for electrical box solutions built for reliable, code-compliant performance on the job.

Manufacturer Resources

Product Specs

list_batch:
ORB-20260924
Product Type:
Outlet Box
Configuration:
4 Square, Welded with MKO
Department:
Electrical
Product Subgroup:
Electrical Boxes
Product Size:
2-1/8"
Pack size (unit):
100
Product Group:
Boxes & Enclosures

Orbit 4SDB-MKO – Frequently Asked Questions

1) Will the Orbit 4SDB-MKO 4 inch square box take standard mud rings and device covers?
Yes. The 4SDB-MKO uses the industry-standard 4 inch square (4S) footprint, so the covers, mud rings, and device plates made for 4-square boxes will land on it. Only the depth differs from a shallow 4S box: this one is a 2-1/8 inch deep body.
2) What is the closest equivalent to the Orbit 4SDB-MKO 4 inch square deep box from another manufacturer?
The RACO 232MS is the nearest match. It is a 4 in. square welded box, 2-1/8 in. deep, rated 600V, in the STAB-iT Series - the same 4-square footprint and same 2-1/8 inch depth as the Orbit 4SDB-MKO welded box. Both take the standard range of 4-square mud rings, covers, and device plates, so a switch from one to the other does not change your trim. The Orbit box is supplied in a pack of 100.
3) Can I use the Orbit 4SDB-MKO as a weatherproof outdoor box on exposed conduit?
No - the Orbit 4SDB-MKO is a welded 4 square box with an MKO configuration intended for commercial and residential rough-in, junction, and device work. For exposed conduit runs you want a threaded-hub box such as the Thomas & Betts Red-Dot 2IH3-2, a 2-gang RT box with three 3/4 inch hubs, supplied in a pack of 100. The hubs let conduit thread directly into the body rather than relying on knockouts and connectors.
4) What does MKO mean on the Orbit 4SDB-MKO box?
MKO is the mounting knockout arrangement on the box, the knockout pattern provided for conduit and mounting connections at rough-in. Orbit's configuration for this model is listed as 4 Square, Welded with MKO.
5) Is a welded 4-square box better than a drawn or crimped one for conduit work?
Welded means the body is one piece with welded seams, which holds its shape under job-site handling and keeps a continuous metal path through the enclosure for grounding. That is why welded 4S boxes are the usual pick for EMT and raceway terminations where the box carries mechanical load from connectors and straps.
6) How many Orbit 4SDB-MKO boxes come in a pack?
They ship 100 to a pack. That is a rough-in quantity, sized for a contractor boxing out a full floor or a multi-family build rather than a one-off repair.
7) Metal welded box or non-metallic box - which do I pick for a steel stud commercial partition?
Both are used. The Cantex EZ20SB EZ Box is a 1-gang non-metallic box specifically designed for steel stud framing, so it suits single-device drops in light-gauge partitions. The Orbit 4SDB-MKO is a welded steel 4 square box at 2-1/8 inch depth with an MKO configuration, which is the usual choice where conduit terminates at the box and where the enclosure itself carries the ground path.
8) What part number do I order for the Orbit 4 inch square deep welded box with MKO?
The manufacturer part number is 4SDB-MKO, sold by Orbit in the 2-1/8 inch deep size. One depth only on this model, so there is no size decision to make beyond confirming you want the deep body rather than a shallow 4S.
How fast can I get the Orbit 4SDB-MKO 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 4SDB-MKO come with a warranty?
Absolutely. The Orbit 4SDB-MKO 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 4SDB-MKO?
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 Orbit 4SDB-MKO from ZenSupply?
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