Pass & Seymour S4435SAC 4-In S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$61.73
$11.55
Pass & Seymour S4435SAC 4-In Square Junction Box, Thermoplastic with Threaded Mounting Holes

Pass & Seymour S4435SAC 4-In Square Junction Box, Thermoplastic with Threaded Mounting Holes

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Model: S44-35-SAC

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

$61.73
$11.55
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Pass & Seymour S4435SAC 4-In Square Junction Box, Thermoplastic with Threaded Mounting Holes

The Pass & Seymour S4435SAC is a 4-in square box built for reliable electrical junction and device installations. Molded from impact-resistant thermoplastic, this UL Listed box features threaded mounting holes for secure fixture and device attachment, along with a rectangular cutout that simplifies installation in residential and light commercial wiring projects. Built-in Auto/Clamps on each end eliminate the need for separate cable clamps, saving time and hardware on the job.

Key Features

  • Trade Size: 4-in square box footprint suited for standard junction and device box applications.
  • Durable Construction: Molded from impact-resistant thermoplastic that resists cracking and corrosion in everyday electrical work.
  • Threaded Mounting Holes: Pre-tapped holes allow fixtures, covers, and devices to be fastened directly without additional hardware.
  • Auto/Clamps: Integrated clamps on each end eliminate the need for separate cable clamps, speeding up rough-in.
  • Easy Installation: Rectangular cutout design streamlines mounting and cable entry for faster box installation.

Certifications & Compliance

  • UL Listed

Technical Specifications

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

Typical Applications

  • Residential and Light Commercial Wiring Installations
  • Junction and Device Box for Switches, Receptacles, and Fixtures
  • New Construction and Remodel Electrical Rough-In
  • Cable and Conductor Splicing Enclosures

Why Pass & Seymour?

Pass & Seymour builds electrical boxes like the S4435SAC on impact-resistant thermoplastic construction with UL Listed performance, giving installers a dependable, code-compliant option for junction and device box needs. The integrated Auto/Clamps and threaded mounting holes reflect a design focused on faster, more secure installations for professional electrical work.

Manufacturer Resources

Spec Sheet

Product Specs

Product Material:
Thermoplastic
Product Type:
Junction Box
Product Color:
Grey
Listing:
UL Listed
Country Of Origin:
United States
Department:
Electrical
Product Group:
Boxes & Enclosures
Product Subgroup:
Electrical Boxes
Product Width:
4.25 in
Product Depth:
2.375 in
Product Length:
4.25 in

Pass & Seymour S44-35-SAC – Frequently Asked Questions

1) Do I need separate cable clamps with the Pass & Seymour S4435SAC 4-inch square box?
No. The S4435SAC has built-in Auto/Clamps on each end, so cable is secured in the box without buying and installing separate clamps. That is one less item on the rough-in list and faster termination on each box.
2) Can I mount a switch or receptacle directly to this 4-inch square thermoplastic box, or do I need extra screws?
The S4435SAC comes with pre-tapped threaded mounting holes, so devices, covers, and fixtures fasten directly to the box without supplying additional hardware. Note that a 4-inch square box takes a device cover or mud ring to bring a switch or receptacle out to the wall surface.
3) Is a plastic junction box like the S4435SAC acceptable for commercial work, or should I use a steel box?
The S4435SAC is molded thermoplastic and is UL Listed, and Pass & Seymour positions it for residential and light commercial wiring. For heavier commercial work where the box is part of a metal raceway system, or where the installation needs the box itself to carry the equipment grounding path or support a heavy luminaire, a steel 4-inch square box is the usual choice. Thermoplastic wins where corrosion resistance matters and the wiring method is nonmetallic cable.
4) Is the Pass & Seymour S4435SAC UL Listed, and where is it made?
Yes, the S4435SAC carries a UL Listing, which is what most inspectors and institutional specs look for on an electrical box. It is made in the United States.
5) What is the exact part number to order for this Pass & Seymour 4-inch square box?
Order Pass & Seymour S4435SAC, manufacturer part number S44-35-SAC. That is a single configuration, so there are no finish or size options to pick on the order.
6) Can I use the S4435SAC for both splicing conductors and mounting a device?
Yes, it works either way. Pass & Seymour lists it for junction and device use, including splice enclosures for cable and conductors as well as mounting switches, receptacles, and fixtures in new construction and remodel rough-in. The threaded holes and rectangular cutout handle the device side; the Auto/Clamps handle cable entry on a splice box.
7) Will the S4435SAC crack if it takes a hit during framing or gets damp in a basement?
It is molded from impact-resistant thermoplastic, which resists cracking and does not corrode the way a steel box does in damp interior locations such as basements and laundry rooms. The plastic body also means no rust bleed through paint later.
8) What color is the Pass & Seymour S4435SAC box, and does it matter for an exposed install?
Grey. For exposed or unfinished areas such as garages and mechanical rooms the grey body blends with standard conduit and raceway hardware; where the box is finished into a wall it ends up behind the cover anyway.
How fast can I get the Pass & Seymour S44-35-SAC 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 S44-35-SAC come with a warranty?
Absolutely. The Pass & Seymour S44-35-SAC 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 S44-35-SAC?
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 S44-35-SAC from ZenSupply?
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