
How many amps is one horsepower. Amperes amps or horsepower hp. For ease we explain how to convert from hp to amps in only 3 step that the formula is used for the calculation some examples and a table with the main conversions of hp to amps. Sorry but youve got that completely round your neck. Horsepower is used to measure the rate of work but amperage is a unit used to measure electric current.
The watt is the product of the amperage and the voltage. Hp to amps amperes conversion calculator formula table chart. How many amps does a 15 hp motor. If the voltage associated with the amps is known the equation to determine the number of amps in one horsepower is 7457 voltage amps.
Amps 1 hp 746 w 9 120 v amps 746 9 120 amps 69 a. One unit of horsepower is equal to 7457 watts. According to national electric code table t430 148 the full load current of a 12 horsepower motor operating at 115 volts is 98 amperes. A three phase 15hp motor with an efficiency of 85 a voltage of 220vac and a power factor of 085 has an amperage of 406 amp.
The maximum breaker size for a sump pump motor of this size is 250 percent of the full load current or 245 amps. Horsepower like kw is a measure of power. Amperes amps and horsepower hp are the electric motors rating methods. One additional consideration that should be made when doing the conversion is the efficiency of the motor being used.
1 hp 746w amperes measure current which if you like is a. For example lets find the current draw in amps of a 1 horsepower motor that runs at 120 volts with a 90 efficiency. Amps to hp calculator. How many amps are in 1 hp.
A three phase 1hp motor with an efficiency of 85 a voltage of 220vac and a power factor of 085 has an amperage of 271 amp. Amps amount of the rate of flow of electricity whereas horsepower measurement of work divided by time. Because 1 horsepower is equal to 746 watts the formula above will include a division by 746 to complete the conversion.