From Table D-16
Min 18.75 amp wire #12 is good
Mad CCT BR. is 35 amps so your 30 is good
If you used fuses then TD at 25 amps or non- time delay at 45 amps.

Instantaneous circuit breakers don't have thermal trip capabilities so will never trip on overload. The only trip on over-current often a minimum of 6 times the normal value of the breaker or 180 amps for the 30 amp breaker.
No overloads required because the motor is thermally protected. A local disconnect if the equipment is further than 9 meters or cannot be seen from the panel and vice versa.

So since you did not mention the panel location or a local disconnect the rest is good so far. IF the panel is within the mentioned distance or you have a local disconnect then you done good. Next motor will be easier.