Other answers have provided motor currents calculated from the watt equivalent of the rated horsepower without regard for efficiency and power factor. Of course, they have also ignored the possibility that the motor is not fully loaded. That would tend to offset the under-estimation of current by ignoring efficiency and power factor.

The conservative estimates that are required to be used by the USA National Electrical Code (NEC) are as follows.

115 V single-phase 56 Amps

230 V single-phase 28 Amps

230 V three-phase 15.2 Amps

460 V three-phase 7.6 Amps

115 V and 230 V figures are given because the utilization voltage is expected to be lower than the nominal voltage supplied at the meter and utilization equipment is designed accordingly.

1 HP = 746 watt, so 5HP = 3,730 watt output.

The input watts will be determined by the efficiency and power factor of the motor. (If AC).

The input current will depend on the voltage and No. of phases of the supply/motor.

So basically from your question, IT is an unknown quantity, without further information.

1 HP is 746 watts, but you need to also consider the efficiency of the motor. After doing that, the current depends on the voltage and power factor.

5 hp =3 728.49936 watts

Volt x Amp =Watt

Amp=watt/volt

A = 3728.49936/120-------------A=31.07

A=3728.49936/240--------------A=15.53

A=3728.49936/380---------------A=9.81

This amp it in continue current charge ,At start up will rise about %30 or more .Which breaker will determinate on max start up of the motor.

If its running on 120V it would draw 31 amps..240V..1/2 that..

Not enough info to even try and guess.