Switch sealing boots protect switches from contaminants such as dirt, dust, gas, and liquids. They are generally tough, pliable silicone rubber devices for toggle, pushbutton, rocker, and rotary switches.
LCD switches and LED switches contain an integrated liquid crystal display (LCD) or light emitting diodes (LED) that show text and graphics. They can be programmed to perform specific functions and provide choices for the selected operation.
Mechanical safety interlock switches couple a moveable guard door with the power source of the hazard. When the guard door is opened, the power is isolated, ensuring that the machine does not pose a hazard while an operator requires access.