Hazardous-location disconnect switches provide control of electrical connections in environments where the possibility of flammable gases, vapors, or liquids, ignitable fibers or flyings, or combustible dust may exist under normal and abnormal conditions. They have location ratings that classify their designated operating environment and must be mated with compatible, hazardous-location devices to be compliant with safety standards. Disconnect switches have manual shutdown mechanisms that open and close circuits to disconnect and connect power from single-load industrial equipment, motors, and electrical operations.