This Harmony XB5, emergency stop / shutdown 30mm mushroom red button head operates with a latched turn to release mechanism. This emergency stop / shutdown button head also called EMS (Emergency Machine Stop) and EMO (Emergency Off) provides an ergonomic interface for controlling your machines. It is easily installed on compatible complete emergency stop and switching off pushbuttons. It is clearly distinguishable visually at a distance thanks to a clear color and a prominent 30mm mushroom shape. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66. It has a plastic bezel, this makes it ideal for applications requiring good resistance to chemical agents and/or double electrical insulation. It is designed to fit in a standard 22mm cutout, ensuring compatibility when installing in pre-existing machinery. Its wide range of operating temperatures from -40C to 70C allows versatility in usage of product.