--- product_id: 38538422 title: "143854 Round Metal Electrical Outlet Box, Weatherproof, Easy Mount, White, (5) 1/2-Inch Holes" brand: "sigma engineered solutions" price: "€ 20.22" currency: EUR in_stock: true reviews_count: 13 category: "Sigma Engineered Solutions" url: https://www.desertcart.hr/products/38538422-143854-round-metal-electrical-outlet-box-weatherproof-easy-mount-white store_origin: HR region: Croatia --- # Weatherproof NEMA 3R rated 5 x 1/2-inch knockouts Powder-coated corrosion resistance 143854 Round Metal Electrical Outlet Box, Weatherproof, Easy Mount, White, (5) 1/2-Inch Holes **Brand:** sigma engineered solutions **Price:** € 20.22 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with weatherproof precision and pro-grade reliability! ## Quick Answers - **What is this?** 143854 Round Metal Electrical Outlet Box, Weatherproof, Easy Mount, White, (5) 1/2-Inch Holes by sigma engineered solutions - **How much does it cost?** € 20.22 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/38538422-143854-round-metal-electrical-outlet-box-weatherproof-easy-mount-white) ## Best For - sigma engineered solutions enthusiasts ## Why This Product - Trusted sigma engineered solutions brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Certified Confidence:** UL and CSA listed for professional-grade safety and compliance - • **Plug & Play Simplicity:** Includes closure plugs and pre-installed ground screw for fast, secure installation - • **Durability Meets Design:** Rugged die-cast metal with powder-coated finish resists corrosion - • **Flexible Wiring Mastery:** Five 1/2-inch knockouts for ultimate conduit versatility - • **Built to Brave the Elements:** NEMA 3R rating ensures reliable outdoor and wet location use ## Overview The SIGMA ENGINEERED SOLUTIONS 143854 is a compact, white, round metal electrical outlet box featuring five 1/2-inch knockouts and 16 cubic inches capacity. Designed for wet, damp, or dry locations, it boasts a powder-coated, die-cast metal construction for corrosion resistance and includes closure plugs and a pre-installed ground screw. UL and CSA listed with a NEMA 3R rating, it fits standard 4-inch round weatherproof covers, making it a versatile, durable choice for both indoor and outdoor electrical installations. ## 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. Review: Sturdy and Reliable for DIY Projects - I've been using this for my recent electrical DIY project, and it's been a solid choice. The material feels robust and dependable, which is exactly what I need when tackling home improvements. One thing I really like is how easy it is to work with. The five-hole design provides ample flexibility for different wiring configurations, making my task much simpler. It also has a clean, white finish that blends well with my home's interior, a small detail but one that adds a professional touch to the work. The only minor downside is that the paint can chip if you're not careful during installation. However, this is easily avoidable with a bit of caution. As someone who enjoys taking on DIY projects, I find this round box to be an excellent addition to my toolkit. It holds up well under various conditions and simplifies the wiring process significantly. Review: Great for outdoor motion lighting - Great box that mounts directly on house, it comes with plugs for holes that aren’t used making it weather proof, perfect fit for motion lights, I installed box and light in 15 minutes. ## Features - Features five 1/2-in knockouts and 16 cu. in. capacity - Fits standard 4-in round weatherproof box covers (with 4.1885-in diameter) - Provide a junction for conduits or can be used to mount lampholders and lighting systems - Die-cast construction and powder coated for corrosion resistance and includes a pre-installed ground screw and closure plugs - Product is UL and CSA listed, suitable for wet locations and NEMA 3R rated ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00C3YD6HU | | Best Sellers Rank | #16,522 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #43 in Electrical Boxes | | Brand | Sigma Engineered Solutions | | Brand Name | Sigma Engineered Solutions | | Capacity | 16 cubic inches | | Color | White | | Customer Reviews | 4.7 out of 5 stars 1,824 Reviews | | Finish Type | Powder Coated | | Global Trade Identification Number | 00031857643850 | | Included Components | Sigma Engineered Solutions | | Installation Type | Screw-In | | Item Dimensions D x W x H | 2.26"D x 5.5"W x 4.2"H | | Item Type Name | Sigma Engineered Solutions, White Sigma Electric 143854WH 1/2-Inch 5 Hole Round Box | | Item Weight | 8 ounces | | Manufacturer | Sigma Engineered Solutions | | Material | Metal | | Model Number | b5b4dfb4-09e3-40da-b716-f01bcab2f649 | | Part Number | 143854WH | | Product Dimensions | 2.26"D x 5.5"W x 4.2"H | | Specification Met | Csa, Nema 3r, Ul | | Style | Compact | | UPC | 031857643850 | | Unit Count | 1 Count | | Warranty Description | Warranty | ## Product Details - **Brand:** Sigma Engineered Solutions - **Color:** White - **Material:** Metal - **Product Dimensions:** 4.2"D x 5.5"W x 2.26"H - **Style:** Compact ## Images ![143854 Round Metal Electrical Outlet Box, Weatherproof, Easy Mount, White, (5) 1/2-Inch Holes - Image 1](https://m.media-amazon.com/images/I/61yLHRT151L.jpg) ## Questions & Answers **Q: How many threaded plugs does it come with?** A: It has 5 holes, and 4 plugs. Basically they assume you will use at least one. **Q: How can it be 4.2 inches by 5.5 inches? That's not a circle. So, is it safe to assume that the 5.5 inch measurement includes the mounting tabs?** A: Yes ,that point would be the widest footprint when mounting this box 5.5" . That means that the space that this box would fit between two fixed objects is 5.5" **Q: Where is this made?** A: Mine shows that it is Made in India **Q: What is the depth of this box?** A: The inside depth is 2 1/2 inches ## Customer Reviews ### ⭐⭐⭐⭐⭐ Sturdy and Reliable for DIY Projects *by D***D on July 16, 2024* I've been using this for my recent electrical DIY project, and it's been a solid choice. The material feels robust and dependable, which is exactly what I need when tackling home improvements. One thing I really like is how easy it is to work with. The five-hole design provides ample flexibility for different wiring configurations, making my task much simpler. It also has a clean, white finish that blends well with my home's interior, a small detail but one that adds a professional touch to the work. The only minor downside is that the paint can chip if you're not careful during installation. However, this is easily avoidable with a bit of caution. As someone who enjoys taking on DIY projects, I find this round box to be an excellent addition to my toolkit. It holds up well under various conditions and simplifies the wiring process significantly. ### ⭐⭐⭐⭐⭐ Great for outdoor motion lighting *by J***S on January 8, 2026* Great box that mounts directly on house, it comes with plugs for holes that aren’t used making it weather proof, perfect fit for motion lights, I installed box and light in 15 minutes. ### ⭐⭐⭐⭐⭐ Great value for money better then hardware store options *by M***C on December 18, 2025* Heavy metal great quality gave everything needed for installation. My light fixture fit perfectly and I like the white matches. Would recommend to anyway way better then hardware store options. I used it on wood stud but I’m sure it’s versatile. ## Frequently Bought Together - Sigma Engineered Solutions, White Sigma Electric 143854WH 1/2-Inch 5 Hole Round Box - Ring Floodlight Cam Wired Plus with motion-activated 1080p HD video, Black (2021 release) - LUTEC 72W 7500LM LED Security Lights Motion Sensor Light Outdoor, 5000K Daylight, IP65 Waterproof, Dusk to Dawn, 3-Head Motion Detected Flood Light for Garage, Yard, Porch(White) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/38538422-143854-round-metal-electrical-outlet-box-weatherproof-easy-mount-white](https://www.desertcart.hr/products/38538422-143854-round-metal-electrical-outlet-box-weatherproof-easy-mount-white) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-08-16*