NE555 DC 12V Delay Timer Switch

Connected to the power relay to 1-10s fixed cycle pull and disconnect NE555 DC 12V Delay Timer Switch. Specifically: to the relay for 12v power supply, the relay will immediately suck and relay output status: normally open and common conduction, normally closed and disconnected; until the delay 1-10s (can be adjusted), the release of the relay , At this moment, the state of the relay output is: Normally open and common open, normally closed and common conduct; As long as the module is not powered off, this state will keep and release with fixed cycle of 1-10s.
2. Adjustable delay time (0 ~ 10 seconds).
3. Increase the potentiometer can increase the delay time.
4. Increase the capacitor C1 can increase the delay time.
5. With input power indicator.
6. With relay pull indicator.
7. Can control the exchange 220V / 10A about equipment. (Maximum control equipment 2000W).
8. With relay freewheeling protection.
9.Delay time formula: T = 1.1RC. For example: Capacitance 100uf Resistance 100K T = 1.1 * 100000 * 0.0001 = 11 seconds.    en.wikipedia.org

NE555 DC 12V Delay Timer Switch

Vehicle equipment-delay to prevent car ignition, prevention of
high sudden current to burn components and devices.

This is a  12V Conduction delay relay module
This is a brand new and high quality delay turn-on module.
the use of high-performance timing CPU design.
the power indicator LED and switch trigger timing indication
LEDs;
The output can be connected to AC 250V 10A DC 30V 10A
load;
There is the chronopotentiometry regulation time,adjustable
from 0 to 10 seconds by default, or by changing the
capacitance adjustment time longer