RACO Square 2-Device Cover...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$3.19
RACO Square 2-Device Cover

RACO Square 2-Device Cover

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Model: 778

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

$3.19
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RACO 778 4 in. Square 2-Device Cover, 1/2 in. Raised, cULus Listed

The RACO 778 is a 4 in. square electrical box cover built for 2-device applications where extra interior clearance is needed. Its 1/2 in. raised profile adds depth inside the box, giving switches, receptacles, and wiring room to sit properly without crowding. Formed through drawn construction for a consistent one-piece fit, the 778 is cULus Listed, making it a dependable choice for a code-compliant finish plate on standard 4 in. square boxes in both new construction and renovation wiring projects. The 778 is well suited for electricians and contractors who need a reliable, ready-to-install cover for two-device box configurations in both commercial and residential settings.

Key Features

  • Trade Size: 4 in. square cover sized to fit standard 4 in. square electrical boxes commonly used in branch-circuit wiring.
  • 2-Device Configuration: Cutout layout is configured for two devices, such as switches, receptacles, or a combination of both, mounted side by side in a single box for a clean, organized finish.
  • 1/2 in. Raised Profile: The raised design adds extra interior depth compared to a flat cover, giving device bodies and wire connections more room inside the box.
  • Drawn Construction: Formed through a drawn manufacturing process rather than welded, producing a one-piece cover with a consistent, uniform fit and no weld seams to work around during installation.
  • Square Shape: Matches the footprint of standard square electrical boxes for a clean, flush-mounted appearance once devices are installed.

Certifications & Compliance

  • cULus Listed

Technical Specifications

  • Product Type: Cover
  • Product Size: 4 in
  • Product Shape: Square
  • Drawn or Welded: Drawn
  • Certified Listed: cULus Listed

Typical Applications

  • Residential and Commercial Electrical Box Installations
  • Switch and Receptacle Device Mounting
  • Standard 4 in. Square Box Systems
  • Device Box Finish Covers for Multi-Gang Wiring
  • New Construction and Renovation Projects

Why RACO?

RACO backs the 778 cover with drawn, one-piece construction and cULus Listing, giving electricians and contractors a dependable, code-compliant option for finishing 4 in. square box installations. The 2-device cutout and 1/2 in. raised profile make it a practical pick for projects that need extra clearance for device bodies and wiring, while the square shape keeps the finished look consistent with standard box hardware. Specifying RACO for box covers means choosing a component built for reliable, long-term performance on the jobsite. For electrical contractors and distributors, the RACO name represents a trusted standard in box covers and related electrical box components.

Manufacturer Resources

Product Specs

Product Shape:
Square
Product Type:
Raised Device Cover
list_batch:
RACO-20260916
Drawn or Welded:
Drawn
Certified Listed:
cULus Listed
Department:
Electrical
Product Subgroup:
Box Covers
Product Group:
Boxes & Enclosures

RACO 778 – Frequently Asked Questions

1) Will the RACO 778 cover fit a standard 4 in. square electrical box?
Yes. The RACO 778 is sized for standard 4 in. square boxes used in branch-circuit wiring, with a 2-device cutout layout for two switches, receptacles, or one of each side by side. If your box is the larger 4-11/16 in. square, order the 840 instead, which is the same style of 2-device raised cover in that trade size.
2) What does the 1/2 in. raised profile on this 4 in. square box cover actually do for me?
It adds a half inch of interior depth over a flat cover. That extra room matters when you are stuffing two device bodies plus wire nuts and pigtails into a shallow 4 in. square box, which is the usual reason a flat cover will not close up cleanly. If your box already has plenty of depth and you want the devices flush to the wall surface, a flat cover is the better pick.
3) Can I use a 2-device raised cover to mount a switch and a receptacle in the same 4 in. square box?
Yes, that is exactly what the 2-device cutout is for. Two devices mount side by side in a single 4 in. square box, and the cutouts accept switches, receptacles, or a combination of the two. The devices screw to the cover, and the cover screws to the box.
4) Is this a drawn cover or a welded one, and does it matter on the job?
Drawn, not welded. It comes out of the press as one piece, so there are no weld seams at the corners to interfere with seating the cover flat on the box or with the device ears. For a facility standardizing on one cover across a lot of openings, drawn parts give a more consistent fit box to box.
5) Is the RACO 778 suitable for retrofit work, or only new construction?
Both. It is a ready-to-install finish cover for standard 4 in. square boxes in new construction and renovation wiring. On a remodel it is often the fix when a flat cover will not go back on because the existing box is crowded with conductors, since the raised 1/2 in. profile buys back interior room without changing the box.
How fast can I get the RACO 778 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 778 come with a warranty?
Absolutely. The RACO 778 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 778?
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 RACO 778 from ZenSupply?
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