The Harmony XB4 series made of metal and the XB5 series made of plastic offer a comprehensive range of push buttons, indicator lights, and selector switches, including emergency stop switches. The modular design of the devices allows for the individual assembly of the required components for 22 mm or 30 mm installation dimensions. Due to their quality, flexibility, and extreme robustness, these devices are ideal for most applications in industry and buildings. This individual auxiliary switch features one normally open contact as well as an additional monitoring contact and is compatible with the XB4 and XB5 series. Installation is done by snapping onto the respective mounting flange. Additionally, this auxiliary switch mechanically blocks any adjacent auxiliary switches due to its unique design. The connection of the vibration-resistant contact block or device is made via screw terminals on the back of the product. Due to the variety of existing product standards and certifications, it is suitable for international use. Thanks to the Green Premium environmental label, you can obtain detailed information about material contents, environmental impacts, and circular economy, which support your sustainability goals.