I just want on and off using microcontroller?What do you mean by controlling the motor?
water levelIs it controlled by water level or timer?
I think that relays , ssr are used to control the motor pump.Please post a bit more detail as you can use just a switch or a computer system or between the above.
AKA 'Definite Purpose' versions.Those contactors made for switching the compressor of an AC outside unit wil probably be the least expensive.
by Jake Hertz
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