---
product_id: 319780762
title: "300mm Junction Box with Steel Back Plate Outdoor Waterproof IP56 Adaptable Enclosure Project Box"
brand: "esr enterprise ltd"
price: "€ 71.68"
currency: EUR
in_stock: true
reviews_count: 1
url: https://www.desertcart.it/products/319780762-300mm-junction-box-with-steel-back-plate-outdoor-waterproof-ip56
store_origin: IT
region: Italy
---

# IP56 Waterproof Rating 300mm x 220mm x 120mm Hinged Lid Feature 300mm Junction Box with Steel Back Plate Outdoor Waterproof IP56 Adaptable Enclosure Project Box

**Brand:** esr enterprise ltd
**Price:** € 71.68
**Availability:** ✅ In Stock

## Summary

> 🔧 Your Project's Best Friend - Built to Last, Designed to Adapt!

## Quick Answers

- **What is this?** 300mm Junction Box with Steel Back Plate Outdoor Waterproof IP56 Adaptable Enclosure Project Box by esr enterprise ltd
- **How much does it cost?** € 71.68 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/319780762-300mm-junction-box-with-steel-back-plate-outdoor-waterproof-ip56)

## Best For

- esr enterprise ltd enthusiasts

## Why This Product

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

## Key Features

- • **📦 Spacious Interior:** Generous internal depth for all your project essentials.
- • **🔧 Easy Installation:** Screw-in design for hassle-free setup.
- • **🔒 Secure & Adaptable:** Customizable entry points for your unique needs.
- • **🌧️ Weatherproof Wonder:** IP56 rated to withstand the elements, rain or shine.
- • **🔄 Innovative Hinged Design:** Access your components effortlessly with a 90° lid.

## Overview

The 300mm Junction Box with Steel Back Plate is a robust, outdoor-ready enclosure designed for versatility and durability. With an IP56 waterproof rating, it ensures protection against heavy rain, while its innovative hinged lid allows for easy access. Measuring 300mm x 220mm x 120mm, this adaptable box features customizable entry points, making it perfect for any project, indoors or outdoors.

## Description

300mm Junction Box with Steel Back Plate Outdoor Waterproof IP56 Adaptable Enclosure Project Box

## Features

- DIMENSIONS- Internal: (L)300 x (W)220 x (D)120mm - External: (L)317 x (W)232 x (D)129mm - Plate: (L)291 x (W)211 x (D)1mm
- Actual usable depth inside the box (when taking ribbing into account) is about 100mm - 60mm in the base and 40mm depth of the lid
- No knockouts - Sides can be drilled wherever you need the entry and exit points - Holesaw recommended to make the holes
- IP56 Rated - Suitable for Use outdoors - will stand against heavy rain providing any holes the user makes are properly sealed
- HINGED FEATURE** All lid screws can be completely removed, to use the hinge feature, you must leave 2 screws partially screwed into 1 side of the lid and base, there are cut-outs beside every screw that allows the lid to turn 90° when the screws are partially inserted - this feature only works on the long sides

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | ESR Enterprise Ltd |
| Part Number | B300 SP300 |
| Product Dimensions | 30 x 22 x 12 cm; 1.39 Kilograms |
| Manufacturer reference | B300 SP300 |
| Colour | Grey |
| Finish | Steel |
| Material | Plastic |
| Shape | Rectangular |
| Installation method | Screw-In |
| Item Package Quantity | 1 |
| Certification | IP56 |
| Usage | Indoor or Outdoor |
| Item Weight | 1.39 kg |

## Images

![300mm Junction Box with Steel Back Plate Outdoor Waterproof IP56 Adaptable Enclosure Project Box - Image 1](https://m.media-amazon.com/images/I/712xckR7nUS.jpg)
![300mm Junction Box with Steel Back Plate Outdoor Waterproof IP56 Adaptable Enclosure Project Box - Image 2](https://m.media-amazon.com/images/I/61ur7vag43S.jpg)
![300mm Junction Box with Steel Back Plate Outdoor Waterproof IP56 Adaptable Enclosure Project Box - Image 3](https://m.media-amazon.com/images/I/71QEDhrgfLS.jpg)
![300mm Junction Box with Steel Back Plate Outdoor Waterproof IP56 Adaptable Enclosure Project Box - Image 4](https://m.media-amazon.com/images/I/71rKwjLntTS.jpg)
![300mm Junction Box with Steel Back Plate Outdoor Waterproof IP56 Adaptable Enclosure Project Box - Image 5](https://m.media-amazon.com/images/I/61xzBVWhb1S.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Nice box for a larger challenge!
  

*by H***? on Reviewed in the United Kingdom on 11 July 2022*

Purchased to house a project, it is quite a bit larger than I needed and more than I would normally pay but it works well and i need it to last. The hinge down lid facility works but isn't worth bothering with as there is no intermediate position of the screws which need to be backed off for this to work. I also found the lack of captive washers on the screws to be annoying as they fall out once unscrewed which for a product aimed at the professional /commercial market is a bit weak.

---

## 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.it/products/319780762-300mm-junction-box-with-steel-back-plate-outdoor-waterproof-ip56](https://www.desertcart.it/products/319780762-300mm-junction-box-with-steel-back-plate-outdoor-waterproof-ip56)

---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-30*