What is the appropriate circuit breaker amperage for a one horsepower aircon? 220 V 50 Hz

looking forward for all answers with you

One electrical horse power is equal to 0.746 KW

P = I X V X POWER FACTOR  IN KW

I = P/(V X POWER FACTOR ) = 0.746/(220 X .8 ) = 4.2 AMPS

ICB = IR X 1.25 = 4.2 X 1.25 = 5.29 AMPS  nearest mcb rate is 10 amps  

I apologize this is not my field

simple equation to calculate AMP (P=V*I*cos) from this equation near stander itsA circuit breaker.

Thanks for the invite, I leave the answer to the experts specialists in this field