---
product_id: 54387966
title: "S.M.J. Wht 30 Amp 3 Terminal Heavy Duty Junction Box"
brand: "jms"
price: "€ 2.56"
currency: EUR
in_stock: false
reviews_count: 8
url: https://www.desertcart.nl/products/54387966-s-m-j-wht-30-amp-3-terminal-heavy-duty
store_origin: NL
region: Netherlands
---

# 30 Amp Capacity Heavy Duty Build 3 Terminal Design S.M.J. Wht 30 Amp 3 Terminal Heavy Duty Junction Box

**Brand:** jms
**Price:** € 2.56
**Availability:** ❌ Out of Stock

## Summary

> 🔧 Power Up Your Projects with Ease!

## Quick Answers

- **What is this?** S.M.J. Wht 30 Amp 3 Terminal Heavy Duty Junction Box by jms
- **How much does it cost?** € 2.56 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/54387966-s-m-j-wht-30-amp-3-terminal-heavy-duty)

## Best For

- jms enthusiasts

## Why This Product

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

## Key Features

- • **Robust and Reliable:** Built to withstand heavy-duty applications.
- • **Effortless Installation:** User-friendly design for quick setup.
- • **Free First-Class Postage:** Enjoy complimentary shipping on all orders.
- • **Perfect for Professionals:** Ideal for contractors and DIY enthusiasts alike.
- • **Join Power Cables with Confidence:** Designed for seamless internal connections.

## Overview

The S.M.J. 30 Amp 3 Terminal Heavy Duty Junction Box is engineered for robust internal power cable connections, featuring a durable design that ensures reliability and ease of installation. With free first-class postage on all orders, this junction box is the perfect choice for both professionals and DIY enthusiasts looking to elevate their electrical projects.

## Description

Product Description          Terminal junction boxes. Available in white or brown, in various amperages. heavy-duty Junction Box 30 amp.3 Terminals.Colour. White.SMJ UK Ltd was founded during October 2001. The three directors; Stuart Brown, Mike and Julie Hynd together have over 50 years experience in the UK DIY and Electrical retail business.During the first full year of trading the strategic plan has come to fruition with relationship and category management skills resulting in excellent trading partnerships with key industry leading retailers and wholesale distributors. Supplying quality branded products and superior packaging solutions, SMJ have become a major partner to several Blue Chip companies, as well as many Electrical and DIY Wholesalers. The early success has been unrivalled.SMJ insists all it's products are tested to internationally recognised standards, and certified where applicable. Regular visits to manufacturing companies ensure consistency and reliability.             Manufacturer's Description          S.M.J. Wht 30amp 3 Terminal Heavy Duty Junction BoxHeavy Duty Junction Box 30 amp.3 Terminals.Colour. White.

## Features

- 30 amp 3 term Joint box
- Free first class postage on all of this range
- used for joining power cables internally

## Images

![S.M.J. Wht 30 Amp 3 Terminal Heavy Duty Junction Box - Image 1](https://m.media-amazon.com/images/I/31ZGFJS2V5L.jpg)

## Available Options

This product comes in different **Style Name, Item Package Quantity** options.

## Customer Reviews

### ⭐⭐⭐⭐ 







  
  
    Still usable
  

*by M***A on Reviewed in the United Kingdom on 27 April 2017*

Made of a very hard plastic rendering it quite fragile. Half of the screw thread fell off when I've unscrewed it. Not even used it or placed cables in it. I guess you get what you've paid for and since I'll be using it in the attic I don't care that much. Yet I'm not sure the screw will hold the upper shell now, hence one star drop.

### ⭐⭐⭐ 







  
  
    Fiddly to use
  

*by K***N on Reviewed in the United Kingdom on 10 March 2020*

Very fiddly to use when working in tight space. Gave up in the end and bought easy to use ones

### ⭐⭐⭐⭐ 







  
  
    A good quality product with substantial terminals at a fair price ...
  

*by B***T on Reviewed in the United Kingdom on 31 May 2017*

A good quality product with substantial terminals at a fair price. An initial delivery set back was soon resolved  to my satisfaction  by Select Online and I recommend  this seller.

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**Shop now:** [https://www.desertcart.nl/products/54387966-s-m-j-wht-30-amp-3-terminal-heavy-duty](https://www.desertcart.nl/products/54387966-s-m-j-wht-30-amp-3-terminal-heavy-duty)

---

*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-29*