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depends what the source voltage is
one horsepower equals to 746watts (assuming 100% efficiency)
746 watts divided by voltage source equals current (amps)
AnswerIn countries, such as the USA, where the horsepower is still used as a means of measuring power, it is always used to measure the output power of a motor.
So, in order to determine the current drawn by the motor, you will first need to find out its input power. The input power is the output power divided by the machine's efficiency. Once you know its input power, then you can find its current by dividing the input power by the supply voltage. In practise, you will need to use a wattmeter to determine its input power.
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∙ 12y ago
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∙ 11y agoThis can't be answered easily. Amps is an electrical value where as "hp" stands for horse-power. This is a mechanical measurement. Hp can be coverted into amps by using a generator. This would of course all depend on the gearing and such of the generator.
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∙ 14y agoA 1 HP motor is represented as 746 watts for calculation purposes. It depends on the voltage that the motor needs. Without a voltage the equation for single phase amperage calculation, Amps = HP x 746/Volt x Eff. x pf is not usable.For three phase amperage calculation a voltage is also needed, Amps = HP x 746/1.73 x Volts x Eff. x pf.
Eff. is the efficiency of the motor and pf is the power factor of the motor.
For calculation purposes the electrical code book uses 16 amps at 115 volts and 8 amps at 230 volts for a single phase 1 HP motor.
For calculation purposes the electrical code book uses 4.8 amps at 200 volts, 4.2 amps at 230 volts, 1.8 amps at 460 volts and 1.7 amps at 575 volts for a three phase 1 HP motor.
As always, if available, always use the motor's nameplate rating for any calculation.
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∙ 8y agoMotor amperage is directly proportional to the voltage applied to them. Also the amperage depends on whether the motor is single phase or three phase.
3 phase - 1 HP at 115 volts = 8.4 amps, at 115 volts = 8.4 amps, at 200 volts = 4.8 amps, at 230 volts = 4.2 amps, at 460 volts = 1.8 amps, and at 575 volts = 1.7 amps.
Single phase 1 HP at at 115 volts = 16 amps, at 230 volts = 8.0 amps
These amperages come from the electrical code book to be use in wire size calculations. Always use the motor nameplate for the most accurate amperage of a motor.
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∙ 8y agoThe answer depends on the supply voltage and the type of motor. For a single-phase induction motor allow 7 amps per HP on a 240 v supply.
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∙ 14y agoNone - hp is power, amperes are electric current. You need a figure for volts as well as current. 1hp is roughly .75kW
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∙ 11y agoAs a rule of thumb amps horse power rating can can be estimated as
115 volts motor, single phase, 14amps/hp
230 volts motor, single phase, 7amps/hp
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∙ 8y agoA 1 hp motor running on 120 volts will take about 6.2 amps.
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∙ 14y agoHow many amps does a 1 hp motor draw?
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∙ 12y agodepends on voltage
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Will a 10 hp 220 volt motor draw large amounts of electricity?
A single phase 10 HP motor will draw aproximately 50 amps. A three phase 10 HP motor will draw aproximately 28 amps.
How many amps will a 24 volt dc motor draw if running at 12 volts?
Depends on how big the motor is. A stronger motor will draw more amps then a weaker or less efficient motor. For example a wiper motor draws far less then a starter motor.
How many amps does a half horse power motor draw at 220 Volts?
to calculate: 1hp=745W 3hp=745*3=2.2Kw assuming a 3 phase motor power is V*I*pf*the square root of 3 I would gues a PF of 0.8 if its a resonable motor which gives about 7.2 amps per phase. if the PF is bad say .65 it could pull up to 9 amps in short, too little information to give you the actual answer.
How many amps does a 15 hp motor draw?
To answer this question the voltage of the motor must be stated.
How many amps does 1 phase 220volt 7.5 HP draw?
Look at the motor nameplate and it shoud have the amp draw on it. If the nameplate is missing, then the amp draw depends on what type of motor it is. The basic calculation to get you in the ball park would be as follows: 1 HP = 0.75 KW 7.5 HP = 5.63 KW Assume the efficiency of the motor is 80%, then the power supplied will need to be 5.63/0.8 = 7.04 KW amp draw = 7040/220 = 32 amps <<>> For calculation purposes the electrical code book states that a 7.5 HP motor draws 40 amps.
How many amps does a five horse power motor draw?
It depends on the voltage-- I think at 110v it's 4 amps per hp
Will a 10 hp 220 volt motor draw large amounts of electricity?
A single phase 10 HP motor will draw aproximately 50 amps. A three phase 10 HP motor will draw aproximately 28 amps.
How many amps will a 75KW 525v motor draw?
23
How many amps will a 24 volt dc motor draw if running at 12 volts?
Depends on how big the motor is. A stronger motor will draw more amps then a weaker or less efficient motor. For example a wiper motor draws far less then a starter motor.
How many amps does a half horse power motor draw at 220 Volts?
to calculate: 1hp=745W 3hp=745*3=2.2Kw assuming a 3 phase motor power is V*I*pf*the square root of 3 I would gues a PF of 0.8 if its a resonable motor which gives about 7.2 amps per phase. if the PF is bad say .65 it could pull up to 9 amps in short, too little information to give you the actual answer.
How many amps does a 0.75 hp 550 volt single phase motor draw?
At peak power it should draw 1.36 amp at power factor 1 or more realistically 1.7 amp at power factor 1.7.
Why does a slow motor create high amps?
Excessive resistance (drag), will cause motor to draw more amps (current flow) to operate.
How many amps does a 15 hp motor draw?
To answer this question the voltage of the motor must be stated.
How many amps does a 12volt 2hp motor draw?
124.3 amps. If you have one on a vehicle, for example a winch, use no less tha 00g cable. That is a LOT of power, and an ordinary alternator can't handle that.
How many amps drawn a 110KW motor?
Watts = Volts times Amps. Therefore, if the voltage was 220 volts, the motor would draw 500 amps. If the voltage was 4,000 volts, the motor would draw 27.5 amps. The voltages for large powerful motors tend to be relatively high, for example in the 380 Volts to 11,500 Volts range.
How many watts is 1 hp at 480volts?
A 1-HP motor is reckoned to draw 7 amps at 240 v single-phase. The same power of motor would draw 3.5 amps at 480 v single-phase, but a 480 v supply could most likely be a three-phase suppy, and the current in that case would be reckoned as 2 amps.
How many amps does 1 phase 220volt 7.5 HP draw?
Look at the motor nameplate and it shoud have the amp draw on it. If the nameplate is missing, then the amp draw depends on what type of motor it is. The basic calculation to get you in the ball park would be as follows: 1 HP = 0.75 KW 7.5 HP = 5.63 KW Assume the efficiency of the motor is 80%, then the power supplied will need to be 5.63/0.8 = 7.04 KW amp draw = 7040/220 = 32 amps <<>> For calculation purposes the electrical code book states that a 7.5 HP motor draws 40 amps.
