Posted on Wednesday, October 31, 2018 by
Dave Nelson
Most 4” submersible well pump motors used in residential applications are available in 2-wire or 3-wire configurations. The ground wire is not counted in the terminology. 2-wire motors have two black and a green wire. ---- ---- ---- 3-wire motors have a black, red, yellow, and a green wire. ---- ---- ---- ---- The starting components for a 3-wire motor, including start capacitors, run capacitors, relays, and thermal overloads are contained in a control box above ground. The starting components...