What type of junction box should be used in wet locations?

A weatherproof junction box is specifically designed to be used in wet locations, making it the appropriate choice for this scenario. These junction boxes are constructed with materials and sealants that prevent moisture from entering, ensuring that electrical connections remain protected from water exposure.

When electrical equipment is installed outdoors or in areas prone to moisture, the risk of electrical shorts or corrosion increases significantly. Weatherproof junction boxes have features such as gaskets and sealed covers that protect the internal components from rain, snow, and humidity.

While non-metallic and plastic junction boxes can provide some resistance to moisture, they may not meet the regulatory requirements for wet location installations, where the level of moisture exposure is higher. Metal junction boxes, on the other hand, can corrode in wet conditions unless they are specifically treated or coated for such environments, which makes them less ideal for direct exposure to moisture without the added protections found in weatherproof designs.