Explore the complete breakdown of distribution box costs, including safety features, scalability options, and operational benefits. Learn how to maximize your investment in electrical distribution systems. An explosion proof junction box is a sealed electrical enclosure designed to contain sparks or flames that may occur within the box, preventing them from igniting explosive gases or dust in the surrounding environment. They are commonly made of aluminum, stainless steel, or heavy-duty cast metals. Includes: Internal Ground Screw and O-Ring, Internally Threaded Surface Cover with 3. 88" Opening, 18 Cubic Inches and (3) 3/4" Threaded Hubs. To address these inquiries, let's discuss the models and pricing of explosion-proof lights, hoping to assist everyone. Explosion-proof distribution boxes are categorized based on classification into. The Explosion-proof Distribution Box helps protect power systems in hazardous areas with flammable gases or dust.