The DAC01CM24 is a star-delta control relay designed for motor starting applications with two independently adjustable time ranges: star function from 0.1 to 600 seconds and star-to-delta transition delay from 50 to 130 milliseconds. It features an 8 A SPDT relay output with neutral centre position, knob-selectable time ranges (0.1–1 s, 1–10 s, 6–60 s, 60–600 s), and high repeatability of =0.2%. The device is mounted on DIN-rail in a 22.5 mm Euronorm housing with screw terminals, operates on 24 to 240 VAC/DC power supply (±10% to -15%), and includes LED indicators for power supply and relay status. With an operating temperature range of -20 to +60°C, IP 20 protection rating, and mechanical life exceeding 30 million operations, the DAC01CM24 is ideal for industrial motor control systems requiring reliable soft-start functionality and precise timing control.