They protect live parts from accidental contact, conceal open areas, and support a tidy overall appearance in the meter panel, subdistribution board, or control cabinet. Transparent protective covers for panels are specialized components designed to protect the electrical panel components from dust, moisture, and mechanical damage. These panels are typically offset from the enclosure wall, allowing devices to be mounted without compromising the enclosure's structural integrity or. PVC Electrical Panel Cover - Flip Up Open Distribution Box Lid, Breaker Panel Protection, 60cm x 50cm, Durable & Weather-Resistant for Home & Commercial Use Durable Materials: Made from a strong PVC Frame and Crystal Film, this Electric Panel Cover is Waterproof, Sturdy, and Easy to Clean. It. Usually, PVC or polycarbonate is what they are made of.