Well Pump Motor Wiring

It s extremely important to properly ground the system to any metal plumbing the control box for 3 wire well pumps and the motor frame using copper wire at least as thick as the other wires used to supply power to the pump motor.

Well pump motor wiring.

Line 1 l1 power in from pressure control switch possibly through an overload or pump protection switch. Replace a two wire pump. To replace the two wire pump. Typical 3 wire 240v well pump wiring connections.

A wiring diagram is a simplified standard pictorial representation of an electric circuit. The diagrams for both the two and three wire pumps can be downloaded using adobe. For any type of electric deep well pump the main differences in the wiring will depend on the horsepower of the motor running on the pump and where the starting components on the pump are located like the relay and start capacitor. A 3 wire pump control box may actually have 6 physical wires present as follows.

After determining the voltage is zero disconnect the motor wires directly from the pressure switch box m1 and m2. The owner s manual will include wiring charts to make sure the wire gauge awg is correct which will prevent. The difference between 2 wire and 3 wire well pumps. M2 motor 2 to pump motor.