The Harmony XB4 metal and XB5 plastic series offer a comprehensive range of push buttons, indicator lights and selector switches, including emergency stop switches. The modular design of the devices allows the individual components required to be put together individually for 22mm or 30mm installation dimensions. Due to their quality, flexibility and extreme robustness, the devices are ideal for most applications in industry and buildings. This single auxiliary switch has 1 normally open contact and is compatible with the XB4 and XB5 series. It is mounted by snapping onto the respective mounting flange. The vibration-resistant contact block or device is connected using screw terminals on the back of the product. Suitable for international use due to the large number of existing product standards and certifications. Thanks to the Green Premium eco-label, you can obtain detailed information on material content, environmental impact and circular economy that supports your sustainability goals.