Self-Supporting Contactor Scheme: Connection, Schematic w/ Switches, Circuit Breakers & Bulb

Hello, I am here completely new and green, I will just add that I start my adventure with electrician at the 1st semester of technical secondary school for adults, so please bear with me. I searched the forums regarding the contact with the contactor, I did not find an answer that would satisfy me. Please help.

1. How does the contactor support itself? (where to connect?)
2. I am asking for a simple schematic with a contactor, switches and circuit breakers and some receiver, eg: a bulb (at the discretion), along with describing this phenomenon, what and where and why it is connected to the contactor. ? Ideally, the explanation would be spontaneous.

Thank you very much for your understanding and best regards to dear forum members!

Simply holding the contactor is just giving the coil at the moment of triggering the same voltage which was used to connect the contactor through the auxiliary contact of this contactor, in other words, the contactor will catch and will be caught, the circuit will not break the auxiliary contact circuit, and the diagrams there are just type in google

This portal has a search engine, it is worth using it.

https://www.elektroda.pl/rtvforum/topic2722469.html
And the relay or contactor is the same control.
Post 1 scheme, description of post 11 activity.

Gentlemen, as I understand correctly, the current flies by itself, through the S1 button, shuts it so that it has a free path on the coil, and thanks to this maneuver does maintenance take place? , then the coil as an electromagnet attracts the main contacts by activating the receiver, without the need to hold the button all the time?

Greetings.

The current will flow through P1, press P2 and the circuit closes through the contactor / relay coil, which causes the electromagnet jumper to be attracted, and this switches the main and auxiliary contacts, auxiliary contacts S1 bypassing pressed P2.
We can release P2 and the circuit is closed.
Pressing P1 we open the circuit and the electromagnet releases, disassembling S1.
The contactor is turned off.