The ARVO-D is an electromechanical daily time switch designed for reliable time-based control of electrical loads. Powered by a 230 V AC mains supply, it features mechanical trippers for simple and accurate daily programming. The unit mounts on a DIN rail, occupies 2.5 modules, and includes one relay for switching applications. An integrated power reserve ensures timekeeping continuity during power outages, making it suitable for lighting, HVAC, and general automation tasks in residential, commercial, and industrial installations.