Cover and protect electrical and electronic controls including HMI (Human Machine Interface) instruments, touch pad controllers and pushbuttons mounted on the surface of NEMA 4X enclosures. No need to open the enclosure to view electronics or perform maintenance, decreasing arc flash risks and safety hazards. Non-Corrosive, Non-Conductive, Light Weight With Lower Installation Cost And Longer Life Cycle Cost Compared To Steel. Rigid Design With A Gasket System Encased In A Continuous Channel On The Cover And Frame. Open Back Frame Design, Ul Listed Accessory For Use With Nema 4X Enclosures.