4-inch Round Ceiling Box, Nory...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$11.58
4-inch Round Ceiling Box, Noryl Thermoplastic

4-inch Round Ceiling Box, Noryl Thermoplastic

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Model: S1-20-HGAC

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

$11.58
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Pass & Seymour S120RGAC 4-Inch Round Ceiling Box, Noryl Thermoplastic

The Pass & Seymour S120RGAC is a 4-inch round ceiling box engineered for reliable mounting and wire management of ceiling fixtures and fans. Molded from impact-resistant Noryl thermoplastic, this UL Listed box features molded-in auto-clamp cable management and an integrated depth-mounting gauge for accurate ceiling alignment, making it a dependable choice for residential, multi-unit residential, and commercial electrical installations. The black thermoplastic construction is fully non-conductive, giving electricians a durable, safe alternative to metallic ceiling boxes for everyday fixture and fan support work.

Key Features

  • 4-Inch Round Design: Standard sizing offers versatile compatibility with ceiling fixture and fan installations across residential and commercial jobs.
  • Auto-Clamp Cable Management: Molded-in clamps hold wires securely in place without requiring additional hardware or tools, speeding up rough-in and finish work.
  • Impact-Resistant Noryl Thermoplastic Construction: Virtually unbreakable, non-conductive material ensures long-term durability and electrical safety on the jobsite.
  • UL Listed for Fan and Fixture Support: Certified for safe installation of ceiling fans and lighting fixtures, giving installers confidence in code-compliant performance.
  • Integrated Depth-Mounting Gauge: Built-in alignment feature ensures proper box positioning relative to the ceiling surface for a clean, professional finish.
  • Black Finish: Non-conductive black thermoplastic construction provides electrical isolation along with a clean, finished appearance once installed.
  • Simplified Installation: The combination of auto-clamp cable management and a depth-mounting gauge reduces installation steps for electrical professionals and contractors.

Certifications & Compliance

  • UL Listed

Technical Specifications

  • Country Of Origin: United States
  • Product Color: Black
  • Product Line: Pass & Seymour
  • Product Material: Thermoplastic

Typical Applications

  • Residential Ceiling Fixture Installations
  • Ceiling Fan Mounting Projects
  • Commercial Lighting Applications
  • Multi-Unit Residential Properties
  • Professional Office Buildings
  • New Construction and Renovation Projects

Why Pass & Seymour?

Pass & Seymour delivers professional-grade electrical solutions backed by UL Listed certification and impact-resistant Noryl thermoplastic construction. The molded-in auto-clamp cable management and integrated depth-mounting gauge simplify installation while ensuring reliable, code-compliant performance for electrical professionals and contractors working on ceiling fixture and fan projects.

Product Specs

Listing:
UL Listed
Product Type:
Ceiling Box
Product Color:
Black
Department:
Electrical
Country of Origin:
United States
Product Group:
Boxes & Enclosures
Product Subgroup:
Electrical Boxes

Pass & Seymour S1-20-HGAC – Frequently Asked Questions

1) Is the Pass & Seymour S120RGAC 4-inch round ceiling box rated to support a ceiling fan?
Yes. The S120RGAC is UL Listed for fan and fixture support, so it can carry a ceiling fan as well as a lighting fixture. That listing is what an inspector looks for when a fan is going up on a plastic box instead of a metal one.
2) Is a plastic ceiling box acceptable where I can't ground the box, or do I need metal?
Noryl thermoplastic is non-conductive, so the box itself is not part of the grounding path and doesn't need bonding the way a steel box does. That is the practical reason electricians choose it over a metallic ceiling box. The equipment grounding conductor still has to be carried through to the fixture.
3) Do I need separate cable clamps or connectors with this 4-inch round ceiling box?
No extra clamps needed. The box has molded-in auto-clamp cable management that holds the conductors without additional hardware or tools, so rough-in is just feed and seat the cable.
4) What is the difference between the S120RGAC and the S1-20-HGAC ceiling box?
They are the two ordering options of the same 4-inch round Noryl ceiling box, split by the color/style code in the part number: S120RGAC is the R option and S1-20-HGAC is the H option. Specify the code that matches what the rest of the job was bought under.
5) How do I get the box flush with the finished ceiling on new construction?
There is an integrated depth-mounting gauge molded into the box, so you set it against the joist at the right projection for the ceiling material rather than eyeballing it. That is what keeps the trim ring or fan canopy sitting tight after drywall goes up.
6) Will this box work in commercial and multifamily jobs or is it residential only?
Both. The 4-inch round Noryl ceiling box is used for residential ceiling fixtures and fans, multi-unit residential, commercial lighting, and office buildings, in new construction and renovation alike. For property managers standardizing across a lot of units, it's a single box that covers fixture and fan openings.
7) Is this ceiling box made in the USA for buyers with domestic sourcing requirements?
Yes, country of origin on the Pass & Seymour 4-inch round Noryl ceiling box is the United States, which matters on government and institutional work carrying domestic content language.
8) What color is the Pass & Seymour 4-inch round ceiling box, and does it matter once installed?
It's black. Since the box sits behind the fixture canopy or trim ring, the color is not a finish decision, it's just how the non-conductive thermoplastic comes.
How fast can I get the Pass & Seymour S1-20-HGAC 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 Pass & Seymour S1-20-HGAC come with a warranty?
Absolutely. The Pass & Seymour S1-20-HGAC 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 Pass & Seymour S1-20-HGAC?
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 Pass & Seymour S1-20-HGAC from ZenSupply?
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