If it is possible to eliminate using pushbuttons that make and break the control circuit at.

Three wire start stop circuit.

See image below for an example of 3 wire control being used to pull in a contactor to start a 3 phase motor. Figure 1 shows examples of the additional start and stop push buttons in a three wire circuit. The circuit will operate as a normal three wire circuit if the start stop pushbuttons are used. The most common use of 3 wire control is a start stop control. Pressing the jog button creates a current path directly to the load bypassing the seal in of the control circuit. Each additional start button should be connected in parallel with the first start button and all additional stop buttons should be connected in series with the original stop button.

However the potential danger can exist because the jog button can potentially become the active seal in causing the load to stay on without the assistance of someone pressing the pushbutton. When you press the start button and the stop button is not pressed the 24vdc relay energizes and it pulls in the r1 contactor that feeds three phase power to the motor.