Well Pump Motor Wiring

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.

Well pump motor wiring. Line 1 l1 power in from pressure control switch possibly through an overload or pump protection switch. 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. A wiring diagram is a simplified standard pictorial representation of an electric circuit. It shows the parts of the circuit as streamlined shapes and also the power and also signal connections between the devices.

To replace the two wire pump. The green ground wire should also be terminated to the box and a ground coming from the panel. The difference between 2 wire and 3 wire well pumps. The diagrams for both the two and three wire pumps can be downloaded using adobe.

A 3 wire pump control box may actually have 6 physical wires present as follows. The owner s manual will include wiring charts to make sure the wire gauge awg is correct which will prevent. Replace a two wire pump. Typical 3 wire 240v well pump wiring connections.