This Harmony XALK, is a complete ready to use control station for emergency stop or switching off function. It has 1 mushroom diameter 40mm push button, red with ARRET D'URGENCE marking on legend holder. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66, IP67, IP69, IP69K, making it ideal for operation in harsh environments. This control station provides a good resistance to chemical agents, thanks to its electrical double insulation. Its wide range of operating temperatures from -40°C to 70°C allows versatility in usage of product. It provides a polycarbonate double insulated enclosure with a light grey (RAL 7035) base of enclosure and a yellow (RAL 1021) cover. This control station is ideally suited for industrial, buildings, and infrastructure applications. This control station complies with IEC, UL, CSA standards, as well as CE marking. It is compatible with the Harmony XB5 range of control and signaling units, providing a wide choice of circular and square heads