Weatherproof Box Buying Guide

Weatherproof boxes are an essential component of any outdoor electrical installation, whether you're installing a patio heater, a water feature, or lighting fixtures. These boxes protect your electrical connections from the elements, keeping them safe and dry. But not all weatherproof boxes are created equal. Here's what you need to know before you buy.

Materials

The first thing to consider when buying a weatherproof box is the material it's made from. Most weatherproof boxes are made from plastic or metal.

• Plastic: Plastic weatherproof boxes are lightweight, inexpensive, and easy to work with. They won't rust or corrode, and they won't conduct electricity. However, they may not be as durable as metal boxes and may crack or break over time.
• Metal: Metal weatherproof boxes are more durable than plastic boxes and can withstand more abuse. They're also more fire-resistant than plastic boxes. However, they can rust or corrode over time, and they conduct electricity, which can be dangerous if not handled properly.

Mounting

The next thing to consider is how the weatherproof box will be mounted. There are two main types of mounting:

• Surface-mounted: Surface-mounted weatherproof boxes are attached directly to the surface of the wall or ceiling. They're easy to install and don't require any special tools or equipment.
• Flush-mounted: Flush-mounted weatherproof boxes are recessed into the wall or ceiling. They're more difficult to install than surface-mounted boxes, but they provide a cleaner, more streamlined look.

Size

The size of the weatherproof box you need will depend on the size of the electrical device you're installing. Make sure to choose a box that's large enough to accommodate all the wiring and connections. If the box is too small, you may have to force the wiring in, which can be dangerous.

Certifications

When choosing a weatherproof box, look for one that's been certified by a reputable testing agency. The most common certifications are:

• UL: UL stands for Underwriters Laboratories, a nonprofit organization that tests electrical products for safety and performance. If a weatherproof box has been certified by UL, it means it meets rigorous safety standards.
• CSA: CSA stands for the Canadian Standards Association. This organization tests products for safety and performance and is similar to UL.
• NEMA: NEMA stands for National Electrical Manufacturers Association. This association sets standards for electrical products and rates them based on their performance in different environments.

IP rating

The IP rating of a weatherproof box tells you how well it's protected against the elements. The rating is composed of two digits:

• The first digit indicates the box's level of protection against solid objects (like dust). It ranges from 0 (no protection) to 6 (complete protection).
• The second digit indicates the box's level of protection against liquids (like rain). It ranges from 0 (no protection) to 8 (complete protection).

When choosing a weatherproof box, look for one with an IP rating that's appropriate for your outdoor environment. For example, if you live in a rainy climate, you'll want a box with a high second digit (like 6 or 7).

Features

Finally, consider any additional features that might be important to you. Some weatherproof boxes come with built-in gaskets to provide additional protection against the elements. Others have pre-cut holes or knockouts for easy installation. Some even have lockable covers to prevent tampering.

Conclusion

Whether you're installing a new patio or just adding a few lighting fixtures to your backyard, a weatherproof box is an essential component of any outdoor electrical installation. Before you buy, consider the material, mounting type, size, certifications, and IP rating of the box. Look for additional features that might be important to you, like gaskets or lockable covers. By choosing the right weatherproof box, you can ensure your outdoor electrical connections stay safe and dry for years to come.

Types of Weatherproof Boxes

There are several types of weatherproof boxes available for different applications, here are some of them:

• Junction Box: A Junction Box is the primary type of weatherproof box used to provide protection to electrical connections such as wires, terminals, and splices. This box contains a removable cover and gasket to seal the contents from moisture and dust.
• Outlet Box: An Outlet Box is used for installing electrical outlets in outdoor applications. They are available in plastic or metal and typically come with a lid or hinged door that can be locked in place with screws or clips to prevent tampering.
• Light Fixture Box: A Light Fixture Box is used for mounting outdoor light fixtures to a wall or ceiling. They are typically made from metal and come with a gasket to prevent moisture from entering the wiring connections.
• Transformer Box: A Transformer Box is used to house transformers that are used to reduce the voltage of electrical circuits. They are available in plastic or metal and typically come with a lockable lid to prevent tampering.

Installation

When installing a weatherproof box, it is important to follow the manufacturer's instructions and adhere to the National Electric Code (NEC). Here are some basic steps for installing a weatherproof box:

1. Turn off the power supply to the circuit where the weatherproof box will be installed
2. Select the appropriate weatherproof box based on the application
3. Choose the mounting location for the box and mark the outline using a template or stencil provided by the manufacturer
4. Drill a hole for the wiring conduit if required
5. Attach the box to the mounting surface using appropriate screws or anchors
6. Feed the wiring through the conduit and connect it to the box using wire nuts or other approved connectors
7. Install the cover or lid of the weatherproof box making sure the gasket is in place and secure in place using screws, clips or other fittings provided by the manufacturer
8. Turn on the power supply to the circuit and test the connection to ensure it is working properly

Maintenance

Weatherproof boxes require regular maintenance to ensure they are in good condition and working properly. Here are some tips for maintaining your weatherproof boxes:

• Regularly inspect the box for damage or deterioration, including cracks, rust, or holes
• Clean the box with a lint-free cloth and a mild detergent solution to remove dirt and debris
• Check the gasket and other seals for wear or tear and replace them if necessary
• Ensure that the box cover or lid is securely fastened and that any locking mechanisms are working properly
• Consider adding a weatherproof box accessory like a drainage plate to keep the box from filling with water
• Check the wiring inside the box for signs of wear or damage and repair or replace as necessary

Conclusion

When investing in a weatherproof box, it is imperative to select the appropriate size, material, and certification based on location and application. By taking the extra time to research and consider the various factors, you will ensure that your electrical installations remain safe and reliably protected from the elements for many years to come. When properly installed and maintained, weatherproof boxes are an essential part of keeping your outdoor electrical connections functional and waterproof.