Hubbell Steel Junction Box, 102 x 54 x 40mm

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Junction boxes, also known as electrical outlet boxes or J boxes, act as weatherproof outdoor enclosures that provide secure housing for electrical wiring and devices. These outdoor waterproof boxes protect electrical components from external forces such as weather, neighbouring materials, and vandalism. 

Junction boxes are commonly used as connectors to pattress boxes, often found behind downlights. While they might look similar to pull boxes, junction boxes are distinct because they house wire connections internally, which pull boxes do not.

## **How do Junction Boxes Work?**

Junction boxes provide points of entry for electrical cables. It is important to choose the right size and type of junction box for your project's needs to ensure safety and compliance with the relevant rules and regulations. These boxes may have knockout, integrated thread, or self-sealing membranes for cable entry. 

Internally, there are mounting points for screws in each corner, so it is important to use the correct masonry plugs, anchors, and fixings for the surface you are mounting the box to (such as a wall, skirting board, or ceiling). A sealed box lid or cover provides security for all the internal components. 

## **What Materials are Junction Boxes Made From?**

Junction boxes can be made from various plastics (such as PVC and fibreglass) and metals (stainless steel). Both types are suitable for most household projects, but metal boxes must be grounded and connected to the ground system of the circuit. The material of the box should always match the material of the device it contains.

## **Types of Junction Boxes**

Junction boxes come in various forms to accommodate different installation needs and aesthetic preferences. Here are some of the most common types:

### **Surface-mounted Boxes**

These junction boxes are installed directly on the surface of a wall or ceiling, making them ideal for applications where concealing the box is not necessary or possible. They are commonly used for outdoor lighting, external wiring, and situations where easy access to the wiring is required.

### **Flush-mounted Boxes**

Designed for a seamless look, flush-mounted junction boxes are installed within a wall or ceiling, sitting flush with the surface. This creates a neat and clean finish, making them suitable for indoor applications where aesthetics are important.

### **Recessed Boxes**

These junction boxes are installed within a wall cavity, typically between two studs. They are commonly used for housing electrical components like switches, outlets, and dimmers, providing a concealed and secure installation.

## **IP Ratings for Junction Boxes**

Junction boxes are available in various IP ratings such as IP20, IP2X, IP40, IP44, IP54, IP55, IP65, IP66, IP67, and IP68. The IP rating of the junction box determines what type of protection it provides in terms of environmental conditions and dust penetration. 

The higher the number, the more weatherproof and secure the junction box is against external elements such as rain and dirt. For more information on IP ratings, [click here](https://nz.rs-online.com/web/content/discovery/ideas-and-advice/ip-ratings).

## **Applications of Junction Boxes**

Junction boxes play a crucial role in various electrical systems, providing safe and organised connections for wires and cables. Here's a look at their diverse applications:

- **Electrical Wiring Protection:** Junction boxes serve as protective enclosures for electrical wire connections, safeguarding them from damage, moisture, and accidental contact. Junction boxes are also used for telecommunications. Here [self-amalgamating tape may be used to prevent moisture ingress](https://nz.rs-online.com/web/content/discovery/ideas-and-advice/self-amalgamating-tape-guide?srsltid=AfmBOooNg4CT27CXRkwQxGoJ24QbXk6Cz4q8CCBj79BxZMWIdDXEutht).
- **Home and Commercial Installations:** Junction boxes are widely used in residential and commercial buildings for housing electrical connections for lighting fixtures, switches, outlets, and other electrical devices.
- **Outdoor and Industrial Settings:** Weatherproof junction boxes are essential in outdoor and industrial environments, protecting electrical connections from the elements. They are commonly used in factories, construction sites, and outdoor lighting systems.
- **Network and Control Systems:** Junction boxes are used in network and control systems to organise and protect data cables and communication wires.
- **Underground and Harsh Environments:** Specialised junction boxes are designed for underground installations and harsh environments, providing protection against moisture, corrosion, and extreme temperatures. They are commonly used in underground electrical systems, tunnels, and marine applications.

## **Get Junction Boxes at RS NZ**

As a trusted supplier and distributor of electrical components, RS NZ offers a comprehensive selection of high-quality junction boxes from leading brands like [RS PRO](https://nz.rs-online.com/web/b/rs-pro), [HENSEL](https://nz.rs-online.com/web/content/m/hensel), [Phoenix Contact](https://nz.rs-online.com/web/content/m/phoenix-contact), and [Clipsal Electrical](https://nz.rs-online.com/web/b/clipsal-electrical/). Whether you need a surface-mounted, flush-mounted, or recessed junction box, we have the right product to suit your needs. 

Our range includes various sizes and materials to meet the demands of diverse applications, and all our products comply with relevant safety regulations. Explore our extensive selection of junction boxes, [MCB circuit breakers](https://nz.rs-online.com/web/c/fuses-circuit-breakers/circuit-breakers/mcbs/) and [moulded case circuit breakers](https://nz.rs-online.com/web/c/fuses-circuit-breakers/circuit-breakers/mccbs/) today and find the perfect products for your next project.

## **Ordering & Delivery Information for NZ**

RS NZ is dedicated to providing a seamless and efficient purchasing experience. Our curated online selection is designed for easy navigation, making it simple to find the perfect junction boxes and other electrical components for your needs.

We are also committed to prompt and reliable delivery across New Zealand. For details on estimated delivery times and relevant charges, please visit our [Delivery Information page](https://nz.rs-online.com/web/content/support/all-articles/delivery) for more information.



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Hubbell Junction Boxes

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