The Harmony XB4/XB5 series, made of metal or plastic, offers a wide range of 22 mm and 30 mm control and signaling devices such as push buttons, indicator lights, and selector switches, as well as emergency stop switches. Thanks to the modular design of the devices, all components can be obtained as individual elements, in assemblies, or as complete devices. Due to their quality, flexibility, and extreme robustness (protection classes up to IP69K), these devices are ideally suited for most applications in industry and buildings. This yellow protective collar is designed for use with emergency stop/stop switches. In addition to high vibration resistance and a very long service life, the XB4/ZB4 series devices also feature an extremely high possible ambient temperature. With a variety of existing product standards and certifications, they are suitable for international use. Thanks to the Green Premium environmental label, you can obtain detailed information on material contents, environmental impacts, and circular economy, which support your sustainability goals.