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RACO 8190 4 in. Square Drawn Steel Box, 1-1/2 in. Deep, Raised Ground
The RACO 8190 is a 4 in. square outlet and junction box built from drawn steel for a strong, seamless enclosure. This box measures 1-1/2 in. deep and features sixteen 1/2 in. knockouts for flexible conduit entry, along with a raised ground provision for reliable equipment grounding. Designed for conduit wiring systems, the RACO 8190 is UL Listed and suited for commercial and residential electrical installations.
Key Features
- Trade Size: 4 in. square box footprint for standard outlet, switch, and junction box installations.
- Durable Construction: Drawn steel body provides a seamless, rugged enclosure without weld seams.
- Box Depth: 1-1/2 in. deep interior offers ample space for wiring and device installation.
- Multiple Knockouts: Sixteen 1/2 in. KO's provide numerous conduit entry points for flexible routing.
- Raised Ground: Integrated raised ground feature supports a secure grounding connection.
- No Bracket Design: Configured for conduit-supported mounting in conduit wiring systems.
Certifications & Compliance
- UL Listed
Technical Specifications
- Product Type: Steel Box
- Product Size: 4 in
- Product Depth: 1.5 in
- Product Shape: Square
- Drawn or Welded: Drawn
- Bracket Type: No Bracket
- Wiring System: Conduit
- Knockouts: 1/2 in
- Certified Listed: UL Listed
Typical Applications
- Residential and Commercial Outlet Box Installations
- Junction Box Applications in Conduit Wiring Systems
- New Construction Electrical Rough-In
- Renovation and Remodel Wiring Projects
- Device and Switch Mounting Enclosures
Why RACO?
RACO builds the 8190 from drawn steel for a durable, seamless enclosure backed by UL Listing, giving electricians confidence in code-compliant performance. With sixteen 1/2 in. knockouts and a raised ground feature, this square box is engineered for practical, reliable installation in conduit wiring systems. RACO electrical boxes are a trusted choice for professionals who need dependable, code-ready components on the jobsite.
Manufacturer Resources
Spec Sheet
Product Specs
- list_batch:
- RACO-20260916
- Product Type:
- Outlet Box
- Product Size:
- 4 in
- Product Depth:
- 1.5 in
- Product Shape:
- Square
- Drawn or Welded:
- Drawn
- Bracket Type:
- No Bracket
- Wiring System:
- Conduit
- Knockouts:
- 1/2 in
- Certified Listed:
- UL Listed
- Department:
- Electrical
- Product Subgroup:
- Electrical Boxes
- Product Group:
- Boxes & Enclosures
RACO 8190 – Frequently Asked Questions
1) Is the RACO 8190 4 in. square box deep enough for a receptacle plus several conduit runs?
At 1-1/2 in. deep, the 8190 is the standard-depth 4 in. square box and takes a device with room for the conductors behind it. It has sixteen 1/2 in. knockouts, so you can bring conduit in from multiple sides and still land a device on the box or on a raised cover. If you are pulling a lot of conductors through as a junction point, step up to a deeper 4 in. square (2-1/8 in.) rather than crowding this one.
2) Can I nail the RACO 8190 to a stud, or does it need conduit support?
No bracket on the 8190, so there is nothing to fasten to a stud face. It is built for conduit wiring systems and is supported by the raceway entering it, or by screwing the box back to a solid surface. If you are roughing in on wood framing and want the box set to finished drywall depth, order a bracketed 4 in. square instead.
3) Does the RACO 8190 come with a cover?
No cover ships with the 8190 itself. You order the 4 in. square cover separately and pick it to match the job: a flat blank cover to close it off as a junction box, or a raised single- or two-gang device cover if you are mounting a receptacle or switch. Make sure the cover mud ring depth suits your finished wall thickness.
4) What does the raised ground on this RACO square box do for me?
The raised ground is a tapped boss standing off the back of the box, so your equipment grounding conductor lands on a 10-32 ground screw without the pigtail getting pinched between the device yoke and the box. It gives you a grounding point independent of the device mounting screws, which is what an inspector is looking for on a conduit rough-in.
5) Is the RACO 8190 UL Listed for a commercial job?
UL Listed, yes. The 8190 is a UL Listed 4 in. square steel outlet and junction box, which is what a spec on a commercial or institutional drawing normally calls for on a conduit system.
6) Can I use the RACO 8190 as a pull or junction box in an exposed conduit run?
Yes, that is one of its main uses. With sixteen 1/2 in. entries and a 1-1/2 in. depth, the 8190 works as a junction or pull point in a conduit system with a flat blank cover on the front. It is a dry-location steel box, so for exposed outdoor or damp runs use a gasketed weatherproof box and cover instead.
7) Drawn or welded, and does it matter on a steel box?
The 8190 is a drawn box, formed from one piece with no weld seams at the corners. For an MRO or institutional buyer standardizing a stock room, that matters mostly for durability in handling and for a clean corner where conduit lands. Welded 4 in. squares are the alternative and are typically where you find the deeper and multi-gang configurations.
How fast can I get the RACO 8190 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 RACO 8190 come with a warranty?
Absolutely. The RACO 8190 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 RACO 8190?
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