---
product_id: 46783347
title: "SIGMA ENGINEERED SOLUTIONS 143854 Round Metal Electrical Outlet Box, Weatherproof, Easy Mount, White, (5) 1/2-Inch Holes"
brand: "sigma electric"
price: "€ 15.66"
currency: EUR
in_stock: true
reviews_count: 8
category: "Sigma Electric"
url: https://www.desertcart.it/products/46783347-sigma-engineered-solutions-143854-round-metal-electrical-outlet-box-weatherproof
store_origin: IT
region: Italy
---

# 5 versatile 1/2-in knockouts NEMA 3R & UL wet location rated Powder-coated corrosion resistance SIGMA ENGINEERED SOLUTIONS 143854 Round Metal Electrical Outlet Box, Weatherproof, Easy Mount, White, (5) 1/2-Inch Holes

**Brand:** sigma electric
**Price:** € 15.66
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your projects with weatherproof confidence!

## Quick Answers

- **What is this?** SIGMA ENGINEERED SOLUTIONS 143854 Round Metal Electrical Outlet Box, Weatherproof, Easy Mount, White, (5) 1/2-Inch Holes by sigma electric
- **How much does it cost?** € 15.66 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/46783347-sigma-engineered-solutions-143854-round-metal-electrical-outlet-box-weatherproof)

## Best For

- sigma electric enthusiasts

## Why This Product

- Trusted sigma electric brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Yet Spacious:** 16 cu. in. capacity fits standard 4-inch round covers, perfect for neat, professional installations.
- • **Built to Brave the Elements:** Durable die-cast metal with powder coating ensures long-lasting corrosion resistance in any weather.
- • **Ready for Grounded Peace of Mind:** Pre-installed ground screw and closure plugs streamline installation and enhance safety.
- • **Certified for Safety & Reliability:** UL and CSA listings plus NEMA 3R rating guarantee trusted performance in wet environments.
- • **Five Knockouts, Infinite Possibilities:** Customize your setup with 5 flexible 1/2-inch conduit entries for ultimate wiring freedom.

## Overview

The Sigma Electric Metal Weatherproof Electrical Outlet Box is a robust, 5-hole round junction box designed for professional-grade electrical installations. Featuring die-cast metal construction with powder coating, it offers superior corrosion resistance and is UL, CSA, and NEMA 3R certified for wet locations. Its 16 cu. in. capacity and five 1/2-inch knockouts provide versatile wiring options, while pre-installed grounding and closure plugs ensure safety and ease of use.

## Description

Sigma Electric, Gray Sigma Engineered Solutions, 143854 1/2-Inch 5 Hole Round Box, No Size

Review: 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.
Review: Works perfectly - Item as described.

## 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 | B00C3YD6JI |
| Assembled Diameter | 5.5 Inches |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #182,386 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #354 in Electrical Boxes |
| Certification | Csa, Nema 3r, Ul |
| Color | Gray |
| Customer Reviews | 4.7 4.7 out of 5 stars (179) |
| Cutting Diameter | 5.5 Inches |
| Date First Available | March 27, 2013 |
| Finish | Powder Coated |
| Included Components | Sigma Engineered Solutions, Gray Sigma Electric 143854 1/2-Inch 5 Hole Round Box |
| Installation Method | Screw-In |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 7.8 ounces |
| Item model number | 143854 |
| Manufacturer | Sigma Electric |
| Material | Metal |
| Number Of Holes | 5 |
| Part Number | 143854 |
| Size | No Size |
| Style | Compact |
| Thickness | N/A Inches |
| Warranty Description | Warranty |

## Product Details

- **Material:** Metal
- **Brand:** Sigma Engineered Solutions
- **Color:** Gray
- **Style:** Compact
- **Product Dimensions:** 2.26"D x 5.5"W x 4.2"H

## Images

![SIGMA ENGINEERED SOLUTIONS 143854 Round Metal Electrical Outlet Box, Weatherproof, Easy Mount, White, (5) 1/2-Inch Holes - Image 1](https://m.media-amazon.com/images/I/710NwUH27hL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Sigma Electric Round Junction Box worked out well
*by C***X on June 6, 2024*

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.

### ⭐⭐⭐⭐⭐ Works perfectly
*by S***E on April 27, 2025*

Item as described.

### ⭐⭐⭐⭐⭐ It works
*by J***. on June 1, 2025*

It works good price

## Frequently Bought Together

- Sigma Electric, Gray Sigma Engineered Solutions, 143854 1/2-Inch 5 Hole Round Box, No Size
- SIGMA ENGINEERED SOLUTIONS 14250 Metal Electrical Outlet Box, Weatherproof, Easy Mount Plug and Receptacle Protector, Gray, (3) 1/2-Inch Holes, 1 Gang Box
- ENERLITES 4” Diameter Round Weatherproof Cover, Blank Metal Wall Plate for Outdoor Use, Corrosion Resistant, Size 4.3” x 3.46", 7740-WP, Gray

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**Shop now:** [https://www.desertcart.it/products/46783347-sigma-engineered-solutions-143854-round-metal-electrical-outlet-box-weatherproof](https://www.desertcart.it/products/46783347-sigma-engineered-solutions-143854-round-metal-electrical-outlet-box-weatherproof)

---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-23*