1 Circuit Universal, Emergency Stop/Red. Covers are UL Classified for use with Crouse-Hinds EDS series back boxes. Corrosion resistant captive stainless steel screws holds cover to back box. Silicone cover gasket ensures high degree of water and dust ingress protection. For use in washdown and other damp, wet and highly corrosive or dusty areas where ignitable vapors, gases or highly combustible dusts are abnormally present. Push buttons and selector switches are used in conjunction with contactors or magnetic starters for remote control of motors. Pilot lights provide visual assurance that an electrical function is being performed at a remote or local hazardous location.