Pass & Seymour S120JAC 4-in Ro...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,273.57
Pass & Seymour S120JAC 4-in Round Ceiling Box, Black Noryl Thermoplastic, 100-Pack

Pass & Seymour S120JAC 4-in Round Ceiling Box, Black Noryl Thermoplastic, 100-Pack

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Model: S120JAC

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

$1,273.57
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Pass & Seymour S120JAC 4-in Round Ceiling Box, Black Noryl Thermoplastic, 100-Pack

The Pass & Seymour S120JAC is a 4-in round ceiling box built from impact-resistant Noryl thermoplastic, giving installers a virtually unbreakable, non-conductive housing for ceiling outlet applications. It is UL Listed for fan and fixture support, molded-in Auto/Clamp cable clamps hold wire securely, and it ships in a black finish as a 100-pack for contractors and electrical distributors handling multi-unit jobs. A depth-mounting gauge at the bottom of the bracket helps installers align the box at the proper depth relative to the finished ceiling.

Key Features

  • Trade Size: 4-in round ceiling box sized for standard ceiling outlet and fixture installations.
  • Durable Construction: Impact-resistant Noryl thermoplastic makes the box virtually unbreakable and non-conductive.
  • Integrated Cable Clamps: Auto/Clamp cable clamps are molded directly into the box to hold wire securely without extra hardware.
  • Fan and Fixture Support: UL Listed specifically for fan and fixture support, suited for ceiling fan and light fixture mounting.
  • Depth-Mounting Gauge: A built-in gauge at the bottom of the bracket helps installers set the box at the correct depth relative to the ceiling surface.
  • Color: Black finish for a consistent look where the box remains visible.
  • Bulk Packaging: Sold as a 100-pack for efficient stocking on commercial and multi-unit residential projects.

Certifications & Compliance

  • UL Listed
  • UL Listed for Fan and Fixture Support

Technical Specifications

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

Typical Applications

  • Residential and Commercial Ceiling Outlet Installations
  • Ceiling Fan and Light Fixture Support
  • New Construction and Remodel Wiring Projects
  • Electrical Contractor and Distributor Bulk Stocking

Why Pass & Seymour?

Pass & Seymour engineers the S120JAC ceiling box from impact-resistant Noryl thermoplastic and backs it with a UL Listing for fan and fixture support, giving electrical professionals a non-conductive, durable box for demanding ceiling installations. The molded-in cable clamps and depth-mounting gauge simplify the install while supporting code-compliant, reliable performance on every job.

Manufacturer Resources

Spec Sheet

Product Specs

Product Type:
Ceiling Box
Product Material:
Noryl Thermoplastic
Product Color:
Black
Listing:
UL Listed
Country of Origin:
United States
Department:
Electrical
Product Group:
Wiring Devices

Pass & Seymour S120JAC – Frequently Asked Questions

1) Can I hang a ceiling fan from the Pass & Seymour S120JAC box?
Yes. The S120JAC 4-inch round ceiling box is UL Listed for fan and fixture support, so it is rated to carry a ceiling fan as well as light fixtures. That listing is what separates a fan-rated box from a standard ceiling outlet box that is only good for a lightweight luminaire.
2) Is this ceiling box for new construction or for cutting into an existing ceiling?
The S120JAC is a bracket-mounted new-work box: it fastens to framing before the ceiling goes up, which is why it has a depth gauge on the bracket for setting it to the finished surface. For an existing finished ceiling with no accessible joist, you want an old-work fan-rated retrofit box instead, not this one.
3) Is the S120JAC ceiling box metal or plastic, and does it need bonding?
It is molded from impact-resistant Noryl thermoplastic, not steel. That makes the housing non-conductive, so there is no metal enclosure to bond, and it will not rust or dent on a rough job site. Your equipment grounding conductor still lands on the fixture and device per code.
4) Do I need separate cable clamps or connectors for this ceiling box?
No extra clamps to buy. Auto/Clamp cable clamps are molded directly into the S120JAC box body, so nonmetallic cable is secured as it enters without added hardware. That is one less loose part to carry up the ladder on a rough-in.
5) How do I get the ceiling box set at the right depth for the finished drywall?
There is a depth-mounting gauge molded at the bottom of the bracket. You set the box against the joist and use the gauge to align it to the finished ceiling plane, so the box face ends up flush rather than buried behind the rock or standing proud of it.
6) Is the Pass & Seymour S120JAC sold individually or in a case?
It ships as a 100-pack of the 4-inch round black ceiling box, which is how contractors and distributors stock it for multi-unit and commercial rough-ins. If you only need one or two boxes, a bulk carton is more than you want.
7) Will a standard 4-inch round fixture canopy or fan pan cover this box?
Yes. It is a 4-inch round ceiling box, the standard trade size for ceiling outlets, so fixture canopies and fan mounting pans made for 4-inch round boxes line up on it.
8) Does the black color matter if the box stays visible?
Black is the finish on the S120JAC, which keeps it looking consistent in exposed or partially visible ceiling locations rather than showing a bright plastic edge around the canopy. In a covered install behind a fixture canopy the color makes no practical difference.
How fast can I get the Pass & Seymour S120JAC 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 S120JAC come with a warranty?
Absolutely. The Pass & Seymour S120JAC 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 S120JAC?
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 S120JAC from ZenSupply?
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