Automaton controlling operation of surface and deep well pumps. It replaces the pressure switch and hydrophore tank. Opening the tap sends a signal to PC-10P automaton which starts the pump. Closing the tap makes PC-10P stop the pump. This automaton, as opposed to other types, can match with one-phase pumps with power up to 2200 W, the power consumption of which does not exceed 16A during operation. The device provided with protection against dry run. When the well runs out of water, the devices stops the pump. PC-10P is equipped with 1" diameter ports.