The video shows how to configure your Submersible pump motor with auto cut-off function.(Semi automatic function).

Normally in all single phase submersible pump we have to press start switch for two second to switch on the pump. and wait till the tank is filled and then we have to press stop button to stop the pump this is so problematic, every time switch off pump the solution i just made with timer circuit which is only on for two second when you switch on then automatically it will switch off, so now i don’t have to press this switch every time, circuit will take care about this..


1. Timer

Set the micro switch.

Inside view of Starter panel

Wiring diagram:-( click to download it.)

Set the “Time” based on your requirement to switch off the motor.

I have set to “5” so the motor will cut-off after 35min.

For Eg:-

If you

Set “2” cut – off time = 32 min.
Set “6” cut -off time = 36 min.
Set “10” cut -off time = 40 min.

why 30min added to the set value?

We have set the micro switch value to 30 min in default .

You can set your requirement (hours,minutes,seconds)
by changing the micro switch position.

Download Timer manual

If the download link doesn’t work use https:// instead of http://

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