--- product_id: 291745100 title: "Sigma Engineered Solutions, White Sigma Electric 143854WH 1/2-Inch 5 Hole Round Box" brand: "sigma engineered solutions" price: "£24.35" currency: GBP in_stock: true category: "Sigma Engineered Solutions" url: https://www.desertcart.co.uk/products/291745100-sigma-engineered-solutions-white-sigma-electric-143854wh-1-2-inch store_origin: GB region: United Kingdom --- # 5 x 1/2-inch knockouts UL & CSA wet location rated Powder-coated corrosion resistance Sigma Engineered Solutions, White Sigma Electric 143854WH 1/2-Inch 5 Hole Round Box **Brand:** sigma engineered solutions **Price:** £24.35 **Availability:** ✅ In Stock ## Summary > ⚡ Power your projects with Sigma’s weatherproof precision! ## Quick Answers - **What is this?** Sigma Engineered Solutions, White Sigma Electric 143854WH 1/2-Inch 5 Hole Round Box by sigma engineered solutions - **How much does it cost?** £24.35 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/291745100-sigma-engineered-solutions-white-sigma-electric-143854wh-1-2-inch) ## 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 - • **Built to Endure:** Die-cast aluminum with powder coating for ultimate corrosion resistance - • **Compact & Clean:** Sleek white finish blends seamlessly with modern interiors and outdoor setups - • **Ready-to-Install:** Includes mounting lugs, closure plugs, and pre-installed ground screw for hassle-free setup - • **Flexible Wiring Hub:** Five 1/2-inch knockouts for versatile conduit connections - • **Weatherproof Confidence:** UL and CSA listed, NEMA 3R rated for wet and damp environments ## Overview The Sigma Electric 143854WH 1/2-Inch 5 Hole Round Box is a durable, weatherproof junction box designed for versatile conduit and lighting system installations. Featuring five 1/2-inch knockouts, a 16 cubic inch capacity, and rugged die-cast aluminum construction with powder coating, it ensures corrosion resistance and reliable performance in wet, damp, or dry locations. UL and CSA certified with NEMA 3R rating, it comes ready to install with mounting hardware and a pre-installed ground screw, making it the professional choice for both DIYers and contractors. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00C3YD6HU | | Brand | Sigma Engineered Solutions | | Brand Name | Sigma Engineered Solutions | | Capacity | 16 cubic inches | | Color | White | | Colour | White | | Customer Reviews | 4.7 out of 5 stars 1,734 Reviews | | Finish Type | Powder Coated | | Finish type | Powder Coated | | Global Trade Identification Number | 00031857643850 | | Included Components | Sigma Engineered Solutions 143854WH 1/2-Inch 5 Hole Round Weatherproof Box, White | | Installation Type | Screw-In | | Item Dimensions D x W x H | 10.7D x 14W x 5.7H centimeters | | Item Type Name | Sigma Electric 143854WH 1/2-Inch 5 Hole Round Box, White | | Item Weight | 0.5 Pounds | | Manufacturer | Sigma Electric | | Material | Aluminum | | Model Number | b5b4dfb4-09e3-40da-b716-f01bcab2f649 | | Part Number | 143854WH | | Product dimensions | 10.7D x 14W x 5.7H centimeters | | Specification Met | CSA, NEMA 3R, UL | | Style | Compact | | UPC | 031857643850 | | Unit Count | 1 Count | ## Product Details - **Material:** Aluminum - **Brand:** Sigma Engineered Solutions - **Colour:** White - **Style:** Compact - **Product dimensions:** 10.7D x 14W x 5.7H centimeters ## Images ![Sigma Engineered Solutions, White Sigma Electric 143854WH 1/2-Inch 5 Hole Round Box - Image 1](https://m.media-amazon.com/images/I/61yLHRT151L.jpg) ![Sigma Engineered Solutions, White Sigma Electric 143854WH 1/2-Inch 5 Hole Round Box - Image 2](https://m.media-amazon.com/images/I/71cZ1EshuJL.jpg) ![Sigma Engineered Solutions, White Sigma Electric 143854WH 1/2-Inch 5 Hole Round Box - Image 3](https://m.media-amazon.com/images/I/71fiksjteHL.jpg) ![Sigma Engineered Solutions, White Sigma Electric 143854WH 1/2-Inch 5 Hole Round Box - Image 4](https://m.media-amazon.com/images/I/61NsO6teZcL.jpg) ![Sigma Engineered Solutions, White Sigma Electric 143854WH 1/2-Inch 5 Hole Round Box - Image 5](https://m.media-amazon.com/images/I/61np3i+LF0L.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 ## 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.co.uk/products/291745100-sigma-engineered-solutions-white-sigma-electric-143854wh-1-2-inch](https://www.desertcart.co.uk/products/291745100-sigma-engineered-solutions-white-sigma-electric-143854wh-1-2-inch) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-08-15*