NE555 Delay Relay Module Monostable Switch 12V Automotive Electrical Delay Adjustable

Product introduction: Size: 6.8cm * 2.1cm Main chip: NE555 Working voltage: DC 12V Product features: 1. Turn on the power and delay the closing of the relay. Specifically: after supplying 12V power to the relay, the relay will not absorb sum immediately, and the status of the relay output end is: normally open and common open, normally closed and common on; When the delay is 1-10S (adjustable), the relay absorbs sum. At this time, the status of the relay output terminal is: normally open and common on, normally closed and common off; This state is maintained as long as the module is continuously powered. 2. The 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 equipment（ Maximum control equipment (2000W) 9. With relay freewheeling protection. 10. Delay time formula: T = 1.1rc. For example: capacitance 100uF resistance 100k t = 1.1 * 100000 * 0.0001 = 11 seconds Applicable occasions: 1. Delay connection of on-board equipment to prevent excessive current from burning on-board equipment during vehicle ignition. 2. Where sequential start-up is required, prevent multiple equipment from burning electrical appliances due to excessive starting current at the same time.

• NE555 delay relay module monostable switch delay switch 12V automotive electrical delay adjustable