The Harmony XB5 plastic and XB4 metal series offer a wide range of 22 and 30 mm complete devices such as push buttons, indicator lights and selector switches, right through to emergency stop switches. In addition, the modular design of the devices means that all components can also be purchased as individual elements. This smooth blue cap is compatible with the indicator lights of the Harmony XB4 and XB5 series. The surface of the cap is unlabeled. Suitable for international use due to the large number of existing product standards and certifications. Thanks to the Green Premium eco-label, you can receive detailed information on material content, environmental impact and circular economy that supports your sustainability goals.