The Harmony XB4 metal series offers a wide range of 22mm 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 be purchased as individual elements and optionally also for 30mm installation dimensions. Due to their quality, flexibility and extreme robustness (protection classes up to IP69K), the devices are ideal for most applications in industry and buildings. This blue indicator light is compatible with a BA9s bulb and requires a supply voltage of 400V. The dome of the indicator light is smooth. Mounted in a 22mm hole, the 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 receive detailed information on material content, environmental impact and circular economy that supports your sustainability goals.