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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