【Brief description】

1. Size: 6.8CM * 2.1CM Second, the main chip: NE555 3. Working voltage: DC 12V 4. Features: 1. Turn on the power relay to pull in immediately, and then turn off after a delay of 1-10s. Specifically: after supplying 12v power to the relay, the relay will immediately pull in, and the state of the relay output terminal is: normally open and public on, normally closed and public off; after the delay of 1-10s (adjustable), the relay is off At this time, the state of the relay output is: normally open and public disconnected, normally closed and public conductive; as long as the module is continuously powered, this state will always be maintained. 2. Delay time is adjustable, (0 ～ 10 seconds) 4.Adding a potentiometer can increase the delay time 5. Increasing the capacitance C1 can increase the delay time 6, with input power indicator 7.With relay pull-in indicator 8. It can control AC 220V / 10A. (Maximum control equipment 2000W) 9. With relay continuous current protection. 10. Delay time formula: T = 1.1RC. For example: capacitor 100uf resistance 100K T = 1.1 * 100000 * 0.0001 = 11 seconds