---
product_id: 324122842
title: "Sigma Engineered Solutions, Gray Sigma Electric 14250 1/2-Inch 3 Hole 1-Gang Box"
brand: "sigma engineered solutions"
price: "S$64"
currency: SGD
in_stock: true
reviews_count: 5
category: "Sigma Engineered Solutions"
url: https://www.desertcart.sg/products/324122842-sigma-engineered-solutions-gray-sigma-electric-14250-1-2-inch
store_origin: SG
region: Singapore
---

# 3 x 1/2-inch knockouts NEMA 3R wet location rated Powder-coated corrosion resistance Sigma Engineered Solutions, Gray Sigma Electric 14250 1/2-Inch 3 Hole 1-Gang Box

**Brand:** sigma engineered solutions
**Price:** S$64
**Availability:** ✅ In Stock

## Summary

> ⚡ Weatherproof your workspace with Sigma’s rugged precision!

## Quick Answers

- **What is this?** Sigma Engineered Solutions, Gray Sigma Electric 14250 1/2-Inch 3 Hole 1-Gang Box by sigma engineered solutions
- **How much does it cost?** S$64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/324122842-sigma-engineered-solutions-gray-sigma-electric-14250-1-2-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, powder-coated shell resists corrosion and weather
- • **Compact Power Hub:** 18.3 cu. in. capacity fits single wired devices in vertical or horizontal setups
- • **Secure & Hassle-Free:** Includes pre-installed ground screw, closure plugs, and mounting hardware
- • **Triple Knockout Access:** Three 1/2-inch knockouts for versatile conduit connections
- • **Ready for Any Environment:** UL & CSA certified, perfect for wet, damp, or dry locations

## Overview

The Sigma Electric 14250 1/2-Inch 3 Hole 1-Gang Box is a compact, die-cast electrical junction box designed for durability and versatility. Featuring three 1/2-inch knockouts, powder-coated corrosion resistance, and UL/CSA certifications, it’s engineered to perform reliably in wet, damp, or dry environments. Pre-installed ground screw and included hardware ensure quick, secure installation for professional-grade electrical setups.

## Description

Sigma's weatherproof one-gang boxes provide a junction for conduits and can house a single wired device such as a receptacle or switch. The rugged, die-cast construction prevents moisture penetration making the boxes suitable for wet, damp or dry locations. Boxes are powder coated for corrosion resistance and feature a ground screw for secure installation. Boxes include hardware, closure plugs and a pre-installed ground screw.

Review: Good quality. Suitable for wet locations.
Review: Standard outdoor rated single gang box. Filler caps are plastic instead of diecast.

## Features

- Features three 1/2-in knockouts and 18.3 cu. in. capacity
- Provide a junction for conduits or can house a single wired device such as a receptacle or switch mounted in vertical or horizontal orientations
- Includes a pre-installed ground screw, closure plugs, mounting lugs and (2) NO. 8-32 UNC-2A X 0.25-in self tap screws
- Die-cast construction and powder coated for corrosion resistance
- Product is UL and CSA listed, suitable for wet locations and NEMA 3R rated

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00C3YD0QM |
| Assembled Diameter | N/A Inches |
| Batteries Required? | No |
| Batteries included? | No |
| Certification | Csa, Nema 3r, Ul |
| Colour | Gray |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,409) |
| Cutting Diameter | N/A Inches |
| Date First Available | 27 Mar. 2013 |
| Finish | Powder Coated |
| Included Components | Sigma Engineered Solutions, Gray Sigma Electric 14250 1/2-Inch 3 Hole 1-Gang Box |
| Installation method | Screw-In |
| Item Package Quantity | 1 |
| Item Weight | 249 g |
| Item model number | 14250 |
| Manufacturer | Sigma Electric |
| Material | Plastic |
| Number Of Holes | 3 |
| Part Number | 14250 |
| Pattern | Outlet Boxes |
| Size | 1 Count (Pack of 1) |
| Style | Compact |
| Thickness | N/A Inches |

## Product Details

- **Brand:** Sigma Engineered Solutions
- **Colour:** Gray
- **Material:** Plastic
- **Product dimensions:** 5.7D x 7.1W x 11.4H centimetres
- **Style:** Compact

## Images

![Sigma Engineered Solutions, Gray Sigma Electric 14250 1/2-Inch 3 Hole 1-Gang Box - Image 1](https://m.media-amazon.com/images/I/61MT1VE4CeL.jpg)
![Sigma Engineered Solutions, Gray Sigma Electric 14250 1/2-Inch 3 Hole 1-Gang Box - Image 2](https://m.media-amazon.com/images/I/71Mt10n1DcL.jpg)
![Sigma Engineered Solutions, Gray Sigma Electric 14250 1/2-Inch 3 Hole 1-Gang Box - Image 3](https://m.media-amazon.com/images/I/71m6x3-UHpL.jpg)
![Sigma Engineered Solutions, Gray Sigma Electric 14250 1/2-Inch 3 Hole 1-Gang Box - Image 4](https://m.media-amazon.com/images/I/61HEnH8A41L.jpg)
![Sigma Engineered Solutions, Gray Sigma Electric 14250 1/2-Inch 3 Hole 1-Gang Box - Image 5](https://m.media-amazon.com/images/I/71WkMy7d3vL.jpg)

## Available Options

This product comes in different **Pattern** options.

## Questions & Answers

**Q: Does this box include the full metal tabs that screw in the backs of the box and allow you to mount off to the side**
A: The box will contain 1 metal "ears" that attach to the back side of the box, allowing you to mount the box from the side.

**Q: What is the length, width and depth of this box?**
A: Dimensions are 4 1/2" tall x 2 3/4" wide x 2" deep.

**Q: Can this replace an exterior light ( yard light) previous box?**
A: Yes. That is an outdoor rated weather proof box.

**Q: Can this box be mounted from behind?**
A: There are four holes in the corners that appear to be there so they can be punched out, to accommodate nuts an bolts. There is also a threaded hole in the back that could be used for mounting. See photo.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by M***Y on 19 January 2026*

Good quality. Suitable for wet locations.

### ⭐⭐⭐⭐⭐ Review
*by M***E on 11 September 2025*

Standard outdoor rated single gang box. Filler caps are plastic instead of diecast.

### ⭐⭐⭐⭐⭐ Review
*by L***D on 26 January 2026*

Great for the price. As advertised.

## Frequently Bought Together

- SIGMA ENGINEERED SOLUTIONS 14250 Metal Electrical Outlet Box, Weatherproof, Easy Mount Plug and Receptacle Protector, Gray, (3) 1/2-Inch Holes, 1 Gang Box
- Intermatic WP3100C Weatherproof Electrical Outlet Cover - Extreme Temperature Resistance, Heavy-Duty Construction, Versatile Design & Multi-Configurable, Easy Install, Secure Fit for Outdoor In-Use
- Bates Weatherproof Electrical Outlet Cover, 1-Gang, Outdoor Plug Cover, Outdoor Receptacle Cover

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-03-16*