I've never liked the fact that the factory wiring on motor starters breaks the other (grounded neutral in this case) side of the control circuit.
A ground fault in the wiring between the o/l contacts to the coils could render the Overloads inoperative in this case.
A very simple fix would be to place the o/l contacts on the line side of the control circuits via the jumpers, and run the neutral straight to the coils.
