The AlphaRex³ D22 astro by Legrand is a digital astro timer designed for precise control of lighting systems. With its innovative combination function, it allows programming of up to 56 switching programs distributed across two channels. The timer operates at a voltage of 230 V and offers a variety of features, including the astro function, which takes sunset and sunrise times into account. This enables automatic adjustment of switching times to daylight conditions. Programming can be done directly on the device or via the Legrand Time Switch App using Bluetooth, ensuring user-friendly operation. The AlphaRex³ D22 astro is suitable for mounting on a DIN rail and provides an accuracy of +/- 0.1 seconds per day, along with a backup time of up to five years. This timer is ideal for applications requiring precise and flexible control of light sources.

• Astro function for automatic adjustment to sunrise and sunset
• Programmable via Bluetooth with the Legrand Time Switch App
• Random program and holiday program for additional flexibility
• Permanent ON/OFF and 1-hour test function for easy use
• IP20 protection class, suitable for indoor use.