2Pcs DC 12V Timer Relay Adjustable Signal Trigger Timing Timer Delay Turn Off Delay Timer Switch Automatic Start With Optocoupler
The working voltage of the module is 12V
The module can be controlled: 10A 250VAC (AC), 10A 30VDC (DC) or less load.
The time can be adjusted by the potentiometer. The default is 0-25 seconds. It takes longer. You can replace a larger capacitor or potentiometer by yourself.
Delay time formula: T=1.1RC. For example: capacitance 47uf resistance 500K T=1.1*500000*0.000047=25.85 seconds.
The power supply of the module is equipped with a diode to prevent reverse connection of the power supply, so friends can rest assured to connect.
The signal end of the module is designed with optocoupler isolation, which has strong anti-interference ability and can adapt to the application of high and low level control signals, and is suitable for industrial control.