Is it possible to connect a three-phase electric motor without a starter?
Good time! The question is, is it possible to connect a 3-phase ventilation motor without a start button directly to a 3-phase circuit breaker? Thank.


Good afternoon, what is the “start button”? Three-phase electric motors are connected not through a button, but through contactors or magnetic starters, you can read about this in this article -https://electro.tomathouse.com/en/kak-podklyuchit-trehfaznyj-elektrodvigatel.html. Yes, it is possible to connect directly to the circuit breaker and there is no problem, but note that the circuit breaker is not designed to operate as a circuit breaker. It is needed to protect the circuit from overload. If you often turn this engine on and off in this way, the machine will quickly fail.


Thank you, I had in mind the magnetic starter, not so expressed because of unprofessionalism))).