Abstract: The panel enclosure is used to house electrical equipment and not only shields the equipment from stray RF fields but also protects the equipment against water, moisture and the like. The enclosure is in the form of a shallow rectangular box having an opening outlined by an upwardly sloping flange. A cover has a downwardly depending skirt or lip which overlaps the flange, the cover including an interior gasket which is positioned to seat over the entire perimeter of the flange. One side of the cover is hinged to the box and the other side has securing bolts passing through the lip to engage the sloping surface of the flange. By threading the bolts inwardly, the cover is cammed into tight engagement with the gasket to provide the desired weatherproof features.