Folding shelf supports instruments and test equipment used to install and maintain electrical components in an enclosure. ideally suited for supporting laptop computers, monitoring units and other equipment used with programmable controllers. The shelf can be installed on the inside or outside surface of larger Hoffman industrial enclosures (except PROLINE™). Automatically locks in the horizontal position when raised. When not in use, the shelf folds down and projects only 1 inch (25 mm) from the mounting surface. Constructed of 304 stainless steel with a brushed finish. Maintains UL/CSA Type 4, 4X and 12 rating when properly installed on a Hoffman enclosure.