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Sigma Engineered Solutions

SIGMA ENGINEERED SOLUTIONS 143854 Round Metal Electrical Outlet Box, Weatherproof, Easy Mount, White, (5) 1/2-Inch Holes

  • Based on 38 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Jun 28
Order within 13 hours and 46 seconds
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Features

  • FLEXIBLE INSTALLATION OPTIONS: Easily mount this unit in a vertical or horizontal position, with (5) 1/2-in knockouts and 16 cu in. capacity.
  • INCLUDES: Pre-installed ground screw, closure plugs and molded mounting lugs.
  • RELIABLE DURABILITY: Die-cast construction and powder-coated design provide exceptional corrosion resistance, ensuring long-term reliability and performance in all-weather environments.
  • SECURE INSTALL: Provide a junction for conduits or house a single wired device. Features a ground screw for electrical safety. Requires 1" screw (not included) for mounting to surface.

Description

Sigma Engineered Solutions weatherproof round box provides a junction for conduits and can be used to mount lampholders and lighting systems. The rugged, die-cast construction prevents moisture penetration making the box suitable for wet, damp or dry locations. The box is powder coated for corrosion resistance and features a ground screw for secure installation. Boxes include hardware, closure plugs and pre-installed ground screw. Product is UL and CSA listed.

Manufacturer: ‎Sigma Electric


Part Number: ‎143854


Item Weight: ‎7.8 ounces


Item model number: ‎143854


Is Discontinued By Manufacturer: ‎No


Size: ‎No Size


Color: ‎Gray


Style: ‎Compact


Finish: ‎Powder Coated


Material: ‎Metal


Shape: ‎shape


Thickness: ‎N/A Inches


Installation Method: ‎Screw-In


Item Package Quantity: ‎1


Number Of Holes: ‎5


Cutting Diameter: ‎5.5 Inches


Certification: ‎Csa, Nema 3r, Ul


Included Components: ‎Sigma Engineered Solutions, Gray Sigma Electric 143854 1/2-Inch 5 Hole Round Box


Batteries Included?: ‎No


Batteries Required?: ‎No


Warranty Description: ‎Warranty


Assembled Diameter: ‎5.5 Inches


Date First Available: March 27, 2013


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 28

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Works great
Great product tough holds up.. does the job!
Reviewed in the United States on April 13, 2026 by BathCoMike
    • Sigma Electric Round Junction Box worked out well
this junction box is high quality and has all the needed plugs which makes it very flexible. I found it easy to work with and very sturdy. with the right connectors it can easily be watertight. I'd buy this again when I need one.
Reviewed in the United States on June 6, 2024 by CHTX
    • Good price, as advertised.
I bought this to replace the box from a square application. It is good quality and didn’t give me any issues. I would recommend this product for the money.
Reviewed in the United States on January 5, 2025 by Sunflower
    • Better than the junk at Home Depot!
The FEIT bulbs seem superior to those we have been buying at Home Depot, where there seems to be only one brand. The Home Depot bulbs have a range of issues: flickering, not screwing into the socket properly, burning out early. These FEIT bulbs are doing great so far. We have FEIT security cameras, so we trust the brand. ... show more
Reviewed in the United States on December 17, 2025 by Cliff in Edmonds
    • Works perfectly
Item as described.
Reviewed in the United States on April 27, 2025 by Steve
    • It works
It works good price
Reviewed in the United States on June 1, 2025 by John M.
    • Great quality
Item is great quality and was perfect for mounting a Ring floodlight cam in the back yard. 1/4 the cost of my local hardware store. Came with the plug blanks.
Reviewed in the United States on March 15, 2024 by Cecil
    • It’s good quality and price. It’s good quality and price.
Review Image by Bensan
It’s good product. It’s metal made. Durable and good quality.
Reviewed in the United States on October 13, 2023 Reviewed in the United States on October 13, 2023 by Bensan

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