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.
Start stop contactor wiring diagram.
Step by step procedure for the basic stop start control wiring and diagram on a magnetic contactor with nc and no push button switch and how does it works.
I operation depressing the start button energizes coil m hold in contacts m and maintains the circuit after the start button is released.
Note that one one of the contactor acts as a switch for the start button.
A simple circuit diagram either of the two start buttons will close the contactor either of the stop buttons will open the contactor.
1 j start 2 3 stop i n o.
The most common use of 3 wire control is a start stop control.
See image below for an example of 3 wire control being used to pull in a contactor to start a 3 phase motor.
Typical wiring diagrams for pushbutton control stations start stop control wiring diagrams single station basic circuit r 1 kla i.
I zl ii i i ii i i fo 0.