About this item

The 6–30 V 1‑Channel Delay Power Relay Module is a versatile timing control unit widely used in home automation, robotics, and DIY electronics. Operating within a broad voltage range (6–30 V DC) and even supporting a 5 V micro‑USB power supply, it’s compatible with various power sources. Equipped with a digital LED display, the module offers fully adjustable timing—from as short as 0.1 seconds up to an impressive 999 minutes—allowing users to tailor activation durations with precision. It features robust optocoupler isolation for improved noise immunity, a safety “STOP” button, reverse‑polarity protection, and a sleep mode wherein the display powers off after 5 minutes of inactivity and can be reactivated via any button. Functionally, the module supports multiple timer modes including single‑shot (P1), delayed off (P2), cyclic on/off (P3) with adjustable loops, and signal‑hold mode (P4) with auto‑termination upon re‑trigger or signal removal. Remarkably, it delivers strong output control—switching up to 5 A for DC 30 V or AC 220 V loads—making it suitable for a broad range of low to moderately high‑power applications. Compact, reliable, and highly configurable, this relay module offers powerful timed switching capabilities in a user‑friendly package.