Material: Common materials include steel, aluminum, polyvinyl chloride (PVC), and polycarbonate. The choice of material depends on the application and environmental conditions. Walk into any building—whether it's a cozy family home in Jeddah, a bustling hospital in Riyadh, or a sleek commercial tower in Dubai—and you'll find a silent guardian working around the clock. It's not the security guards or the fire alarms, though those are critical too. Plastic is light and good for inside use. Pepperl+Fuchs offers a comprehensive range of terminal boxes and junction boxes in types of protection Ex e (increased safety), Ex ia (intrinsic safety), Ex tb (dust protection by enclosure), and Ex op pr (protected optical radiation). Why is fire. A distribution box, or DB box, is a circuit breaker enclosure. The hub distributes electrical power from a single input source to various circuits throughout a building. Whether it's a home, office, or factory, the DB box makes sure power. Distribution boxes, also known as electrical distribution boards or panels, are pivotal components in electrical systems, ensuring the safe and organized distribution of electrical power throughout residential, commercial, and industrial environments.