This wiring diagram shows a 3-phase automated motor pump with a float switch. Determining the water level in a tank, the float switch automatically switches on and off the pump. when the water level drops below a predetermined threshold the float switch engages the contactor and powers the three-phase motor. By turning on the pump, the tank is filled. The float switch deactivates when the water level reaches a set high point by cutting off power to the contactor and stops the pump. Indicator lamps, an emergency stop button, and a motor overload protector are additional parts for further convenience.
