Steel City 4-Inch Square Steel...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$75.90
$3.64
Steel City 521711234E 4 INSQUARE BX,STL,30.3CU,.5&3/4E-KO

Steel City 4-Inch Square Steel Outlet Box with 13 Knockouts - 30.3 Cubic Inch Capacity

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Model: 521711234E
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$75.90
$3.64
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Steel City 4-Inch Square Steel Outlet Box with 13 Knockouts - 30.3 Cubic Inch Capacity

Professional Steel Construction for Reliable Electrical Installations

The Steel City 4-inch square steel outlet box delivers dependable performance for electrical installations with its robust steel construction and generous 30.3 cubic inch capacity. Featuring 13 strategically placed knockouts and precise 4x4x2-1/8 inch dimensions, this UL E2969 listed outlet box provides versatile connection options and reliable containment for electrical components in professional applications.

Professional Features & Benefits

  • 30.3 Cubic Inch Capacity: Provides ample space for wire connections and electrical devices, ensuring code compliance and installation flexibility.
  • 13 Knockout Configuration: Multiple knockout options allow for versatile conduit and cable entry points to accommodate various wiring configurations.
  • Steel Construction: Durable steel material provides superior strength and long-lasting protection for electrical connections.
  • 4x4x2-1/8 Inch Dimensions: Standard square box sizing ensures compatibility with common electrical devices and mounting requirements.
  • UL E2969 Listed: Meets rigorous safety standards for reliable performance in electrical installations.
  • Silver Finish: Professional appearance that integrates well with electrical system components.

Technical Specifications

  • Color: Silver
  • Country Of Origin: United States (US)China (CN)
  • Departmetn: Electrical
  • Material: Steel
  • Number Of Knockouts: 13
  • Product Group: Electrical Enclosures
  • Product Size: 4 Inches Height x 4 Inches Width x 2-1/8 Inches depth
  • Product Subgroup: Boxes
  • Product Type: Steel Outlet Boxes
  • Product Type2: Outlet Boxes
  • Selling Unit Of Measure: each
  • Standards: UL E2969
  • Volume: 30.3 in_

Professional Applications

  • Residential Electrical Installations
  • Commercial Building Wiring
  • Industrial Electrical Systems
  • Renovation and Retrofit Projects
  • New Construction Electrical Work
  • Professional Electrical Contracting

Why Choose Steel City Quality?

Steel City outlet boxes deliver proven reliability through UL E2969 listing and durable steel construction. The precision-engineered design and multiple knockout configuration ensure professional installation results and long-term performance in demanding electrical applications.

Manufacturer Resources

Product Specs

Country Of Origin:
United States (US)China (CN)
Number Of Knockouts:
13
Product Type:
Steel Outlet Boxes
Selling Unit Of Measure:
each
Standards:
UL E2969
Volume:
30.3 in³
Department:
Electrical
Product Group:
Electrical Enclosures
Product Subgroup:
Boxes
Product Type2:
Outlet Boxes
Product Size:
4 Inches Height x 4 Inches Width x 2-1/8 Inches depth
Product Color:
Silver
Product Material:
Steel

Steel City 521711234E – Frequently Asked Questions

1) Does a 4-inch square box come with a cover or a mud ring?
No. The 521711234E is sold as the box alone, one each. You order the cover separately, and which one depends on the job: a flat blank cover for a junction box, or a raised device (mud) ring sized to your wall finish depth if you are mounting a switch or receptacle. Raised covers also add volume beyond the box's own 30.3 cubic inches for fill calculations.
2) Steel box or PVC box for a commercial branch circuit?
Go steel when you are running EMT or other metal raceway, because the steel box bonds to the raceway system and becomes part of the equipment grounding path. The Steel City 521711234E is steel throughout. PVC and other nonmetallic boxes are the choice with PVC conduit or where corrosion or a nonconductive enclosure matters, and they require a separate equipment grounding conductor carried through to the device.
3) Will standard switches and receptacles mount in this box?
Yes, on a 4 x 4 inch square footprint with standard device mounting, so common devices and plaster or device rings fit it. Note the box itself is a square box, not a device box, so a single- or two-gang raised device ring is what actually carries the yoke and brings the device out to the finished wall.
4) Is this box suitable for a wet or outdoor location?
No. This is a standard indoor steel outlet box with plain knockouts, not a gasketed weatherproof enclosure. For damp or wet locations you need a cast or die-cast weatherproof box with threaded hubs and an in-use or weatherproof cover. Keep the 521711234E in dry interior walls, ceilings, and mechanical spaces.
5) What finish is the Steel City square box and will it rust in a mechanical room?
The box has a silver steel finish, which is the standard zinc-type protective coating on steel outlet boxes. That is fine for dry interior locations including mechanical and electrical rooms. It is not a corrosion-resistant enclosure for damp, chemical, or exterior exposure.
How fast can I get the Steel City 521711234E 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 Steel City 521711234E come with a warranty?
Absolutely. The Steel City 521711234E 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 Steel City 521711234E?
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 Steel City 521711234E from ZenSupply?
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