Orbit D4SB Series 1-1/2" Deep ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,469.41
Orbit D4SB Series 1-1/2" Deep 4" Square Junction Box, Drawn Steel, Pack of 100

Orbit D4SB Series 1-1/2" Deep 4" Square Junction Box, Drawn Steel, Pack of 100

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Model: D4SB-50

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

$1,469.41
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Orbit D4SB Series 1-1/2" Deep 4" Square Junction Box

The Orbit D4SB Series is a family of drawn-steel 4" square (4S) junction boxes built for junction, outlet, and device box applications in residential, commercial, and industrial wiring systems. Every box in the D4SB Series shares a 1-1/2" deep drawn-steel body and the standard 4S footprint, with the series available in multiple knockout (KO) configurations to match jobsite requirements: the D4SB-50 features a 1/2" KO, the D4SB-75 features a 3/4" KO, and the D4SB-50/75 provides a combination 1/2"-3/4" KO for added flexibility on conduit or cable entry. Across every model, the drawn construction process produces a seamless, one-piece box body that resists deformation and provides consistent wall thickness for dependable field performance on the jobsite. This makes the D4SB Series a practical, code-familiar choice for splicing conductors, mounting devices, and protecting wiring connections behind walls, ceilings, and other concealed locations.

Key Features

  • Trade Size: 4" square (4S) footprint, sized for standard junction and device box layouts.
  • Depth: 1-1/2" deep body provides interior volume for conductor splicing and device mounting across all D4SB models.
  • Knockout Options: Available with 1/2" KO (D4SB-50), 3/4" KO (D4SB-75), or combination 1/2"-3/4" KO (D4SB-50/75) for straightforward conduit or cable entry.
  • Drawn Steel Construction: One-piece drawn-steel body offers a durable, seamless enclosure without weld seams that could compromise strength.
  • Standard 4S Format: Compatible with common 4" square mud rings, covers, and plaster rings used across commercial and residential electrical installations.
  • Jobsite-Ready Design: Straightforward install profile suited for new construction and remodel wiring where a 4" square box is specified.

Technical Specifications

  • Series: D4SB
  • Box Type: 4" Square (4S) Junction Box
  • Depth: 1-1/2"
  • Knockout Range: 1/2" to 3/4" KO depending on model (D4SB-50, D4SB-75, D4SB-50/75)
  • Construction: Drawn Steel

Typical Applications

  • Residential and Commercial Junction Box Installations
  • New Construction Electrical Rough-In
  • Device and Outlet Box Applications
  • Concealed Wiring Splice Enclosures
  • Renovation and Remodel Electrical Work

Why Orbit?

Orbit's D4SB Series delivers a dependable drawn-steel 4" square box family built for consistent quality and straightforward installation on demanding electrical jobs. The one-piece drawn construction, 1-1/2" deep body, and choice of 1/2", 3/4", or combination KO configurations make it a practical choice for electricians who need a reliable junction box that fits established box, cover, and mud ring systems. Choose Orbit for electrical enclosures built for the realities of the jobsite.

Manufacturer Resources

Product Specs

list_batch:
ORB-20260924
Product Type:
Junction Box
Configuration:
1-1/2" Deep
Series:
D4SB
Department:
Electrical
Product Subgroup:
Electrical Boxes
Product Material:
Steel
Product Size:
4" Square
Pack size (unit):
100
Product Group:
Boxes & Enclosures

Orbit D4SB-50 – Frequently Asked Questions

1) What's the difference between the Orbit D4SB-50, D4SB-75, and D4SB-50/75 boxes?
Only the knockout size. All three are the same 4 inch square drawn steel body at 1-1/2 inches deep. The D4SB-50 has 1/2 inch knockouts, the D4SB-75 has 3/4 inch knockouts, and the D4SB-50/75 has combination 1/2 inch to 3/4 inch knockouts so you can punch either size depending on what conduit or cable you are bringing in. If a job mixes 1/2 inch and 3/4 inch EMT, the combo version keeps you from stocking two boxes.
2) Will standard 4 inch square mud rings and covers fit the Orbit D4SB box?
Yes. The D4SB uses the standard 4S footprint, so it takes the common 4 inch square mud rings, plaster rings, and flat covers already used on commercial and residential work. That matters if you are standardizing a building: you can keep one ring and cover inventory and only change the ring depth for your wall finish.
3) Is a steel 4 inch square box the right choice, or should I use a non-metallic junction box?
The D4SB is drawn steel, one piece with no weld seam, which is what you want where the box is part of the equipment grounding path with metal conduit, and where it has to take abuse during rough-in without deforming. If you need a non-metallic box instead, for corrosion or where you are running PVC conduit, ZenSupply carries the Cantex E983G non-metallic PVC junction box family. For a weather or washdown location you want a sealed enclosure rather than a knockout box, such as the Rittal 80181 JB Series hinged-cover box rated IP66/NEMA 4X.
4) What is the non-metallic alternative to an Orbit D4SB 4-inch square steel junction box?
The Orbit D4SB Series box has a drawn steel body in a 4 inch square footprint. If the install calls for non-metallic, the Cantex E983G is a non-metallic PVC junction box family, and the Cantex 5133690 is a 4-1/8 inch junction box with a 1/2 inch knockout that ships with a cover. The steel D4SB accepts standard 4S mud rings, covers, and plaster rings for device mounting, while PVC boxes are typically paired with their own cover systems.
5) I need a junction box rated for washdown or outdoor exposure instead of a standard 4-square - what should I use?
The Orbit D4SB Series is a 1-1/2 inch deep drawn steel 4 inch square box intended for junction, outlet, and device applications in concealed wiring behind walls and ceilings. For an enclosure with a sealed rating, the Rittal 80181 JB Series is a hinged-cover junction box rated IP66/NEMA 4X, and the Carlon E987R is a polycarbonate screw-cover junction box measuring 6 inch by 6 inch by 4 inch. Those are self-contained enclosures rather than 4S device boxes, so they do not take 4 inch square mud rings.
6) How many Orbit D4SB junction boxes come in a box?
They ship 100 to a pack. That is a rough-in quantity, sized for a full floor or a tract of units rather than a single-device repair, so for one-off replacements plan on the remaining 99 going to stock.
7) Is 1-1/2 inch deep enough for a device plus splices in a 4 inch square box?
The D4SB body is 1-1/2 inches deep, which is the deepest of the common drawn 4S boxes and gives the interior volume for splicing conductors and mounting a device. On circuits with heavy conductor fill, a raised mud ring adds further volume, since ring volume counts toward box fill. For very congested pulls, an oversized screw-cover enclosure such as the Carlon E987R at 6 x 6 x 4 inches gives considerably more room, though it is a splice enclosure rather than a device box.
8) Which Orbit D4SB part number should I order for 3/4 inch EMT?
Order the D4SB-75 for a straight 3/4 inch knockout, or the D4SB-50/75 if the same boxes will also see 1/2 inch connectors. Both are the same 1-1/2 inch deep 4 inch square drawn steel body; the part number is only choosing the knockout size.
9) Does the Orbit D4SB come with a cover, or do I need to order one separately?
The Orbit D4SB Series is sold as the box body only, in a pack of 100, and it is built to take common 4 inch square mud rings, covers, and plaster rings. If you want a box that arrives with its cover included, the Cantex 5133690 is a 4-1/8 inch junction box supplied with a 1/2 inch knockout and a cover, and the Carlon E987R is a screw-cover polycarbonate box.
10) I need more interior volume than a 1-1/2 inch deep 4-square gives me for splices. What are my options?
The Orbit D4SB Series body is 1-1/2 inch deep across all three knockout versions (D4SB-50, D4SB-75, and D4SB-50/75). When conductor fill needs more room, the Carlon E987R is a 6 inch by 6 inch by 4 inch polycarbonate screw-cover box, a notably larger enclosure. Note that it is a standalone enclosure, not a 4S-format box, so device rings and 4 inch square covers will not mount to it.
11) Is the Cantex 5133690 a drop-in replacement for an Orbit D4SB-50?
They are not the same format. The Orbit D4SB-50 is a drawn steel 4 inch square box, 1-1/2 inch deep, with a 1/2 inch knockout, and it mates with standard 4S covers and mud rings. The Cantex 5133690 is a 4-1/8 inch junction box with a 1/2 inch knockout and a cover, and it belongs to the Cantex CTX series. Both take 1/2 inch conduit entry, but the body dimension and cover system differ, so confirm the ring and cover you plan to use before swapping.
12) For a facility standardizing on one junction box across many openings, how does the Orbit D4SB compare to the Rittal JB Series?
They serve different parts of a facility. The Orbit D4SB Series is a drawn steel 4 inch square box sold in packs of 100, with a choice of 1/2 inch, 3/4 inch, or combination 1/2 inch and 3/4 inch knockouts, which suits high-count rough-in for devices, outlets, and concealed splices. The Rittal 80181 JB Series is a hinged-cover junction box rated IP66/NEMA 4X, built for enclosure duty where the cover must be opened repeatedly and the interior sealed. Many facilities carry both: the 4S box for building wiring and the sealed enclosure for exposed or wet locations.
13) Can the Orbit D4SB be used for concealed splices behind walls and ceilings?
That is one of its intended uses. The drawn steel 4S box is built for splicing conductors and protecting connections in concealed locations behind walls and ceilings, as well as device and outlet box duty on new construction rough-in and remodel work. Keep the cover accessible, since splice boxes have to remain reachable without removing building finish.
How fast can I get the Orbit D4SB-50 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 D4SB-50 come with a warranty?
Absolutely. The Orbit D4SB-50 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 D4SB-50?
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 D4SB-50 from ZenSupply?
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