0-24sec timer with relay

Time switch for short times with relay output 230VAC / 5A. Suitable for extending the button closing time in the interval 0–24sec.
After pressing the button or the falling edge of the external pulse, the relay closes for a set time of up to 24sec. This time can be changed by replacing the external components (trimmer and capacitor C2, where the formula applies: T = 1,1RC)


Technical parameters:

- supply voltage: 5V (micro USB or solder pads)
- start by button or external signal (low level)
- trimmer for setting the switching time 0–24sec
- LED indicator of closed relay
- dimensions: 54 × 19 × 18mm / 16g

The product is not a self-functional unit, it requires professional assembly.