4" 1PH 3 Wire Submersible Motors
The Franklin 4" 3 wire submersible motors has 2 main power wires (usually yellow & black), 1 start wire (usually red) and a ground wire (green) for a total of four leads wires from motor (grounds are not counted in motor lead description).
There are two different type Franklin control boxes, which are required starting mechanism, available for the Franklin 3 wire submersible motor. See links below for more info.
The 4" submersible pump and motor assembly were designed to fit inside a 4" ID. well casing. Franklin submersible 3 wire motors wire directly to the Franklin control box. The Franklin control box power or line wires are commonly wired in series with a pump pressure switch for automatic on an off operation using the proper pressure tank. The power leads can also be wired directly to any power supply matching the voltage required for manual starting and stopping the motor.
Replacement option for Centri-Pro, Pentek and Grundfos submersible motors.
Click the links below for commonly needed information.