Well Pump Motor Wiring

A wiring diagram is a simplified standard pictorial representation of an electric circuit.

Well pump motor wiring.

It shows the parts of the circuit as streamlined shapes and also the power and also signal connections between the devices. The difference between 2 wire and 3 wire well pumps. A 3 wire pump control box may actually have 6 physical wires present as follows. 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.

Line 1 l1 power in from pressure control switch possibly through an overload or pump protection switch. Typical 3 wire 240v well pump wiring connections. M2 motor 2 to pump motor. After determining the voltage is zero disconnect the motor wires directly from the pressure switch box m1 and m2.

To replace the two wire pump. The green ground wire should also be terminated to the box and a ground coming from the panel. 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. Assortment of 2 wire submersible well pump wiring diagram.