Size: 6.8CM * 2.1CM
The main chip: NE555
The working voltage: DC 12 V
Feature:
1, power relay immediately pull, then disconnect delay 1-10s. Specifically: 12v power supply to the relay, the relay instantly energises state relay output is: normally open with the public is turned off normally closed to public; wait until the delay 1-10s (adjustable), the relay is switched off in this case, the state of the relay output is: normally open and public disconnected, normally closed and common conduction; as long as the UPS module, this state will remain.
2, the delay time is adjustable, (0 to 10 seconds)
4, increase the delay time can be increased potentiometer
5, increasing the capacitance C1 can increase the delay time
6, with input power indicator
7, with relay indicator
8, can control AC 220V / 10A about equipment. (Maximum control equipment 2000W)
9, with the relay freewheeling protection.
10, the delay time formula: T = 1.1RC. For example: Capacitor 100uf resistance 100K T = 1.1 * 100000 * 0.0001 = 11 秒