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One hp is about 750 watts. Power divided by volts equals amps. 750/120=6.25 amps.
Answer 2
But this answer takes no account of what the voltage is. It makes the assumption that it is 120 volts. But the various mains in Europe run at about 240 volts. And what about other voltages, eg 12 volts from a car battery? You'd need 65 amps in this case - rather like a car starter motor.
Answer 3
The conversion from watts to hp is indeed 1hp = 746 watts (as stated above), but no motor is 100% efficient, so you will never actually find a 1hp motor that draws only 746 watts. Real-world 1hp motors draw somewhere between 1,000 and 1,500 watts. Also answer #2 is correct, you need to know volts to calculate amps, but both answers 1 and 2 are only applicable for single phase motors, the formula is different for 3-phase motors.
Further complicating things, volts times amps actually equals VA (volt-amperes) not watts. You must multiply VA times power-factor to get true watts.
So, to get an accurate answer, you must simply consult the nameplate of the chosen motor where the amps are directly listed. If you need an approximation the following formulae will get you close (they assume 1,200 VA per hp):
Single Phase:
Amps = 1200 / nameplate volts
Three phase:
Amps = (1200 / nameplate volts) / 1.73
What else can I help you with?
How many amps does a 50 horse power electric motor use?
Need to know the voltage of the motor.
What circuit breaker rating do you need for a 3 phase electric motor?
The circuit breaker is sized to the full load amps of the motor times 250%.
Where is the electric motor located on a Lincoln?
There are many electric motors on a Lincoln, need to know the year and which electric motor you are looking for.
How many amps do you need to power 1hp?
The amperage of a motor is governed by the voltage that the motor operates on. Without a voltage given, an answer can not be given.
What is the circuit for reversing an electric motor?
I HAVE A SMALL ELECTRIC CLOCK MOTOR THAT I NEED TO REVERSE. WHAT IS THE CIRCUIT I NEED TO REVERSE IT?
How many ampere in one hp?
There are 746 watts in 1 HP. Watts = amps x volts. It depends on the voltage rating of the motor. Amps = 746/volts = ? need voltage.
When designing an ammeter you must take into consideration what?
How well it can measure current in an electric circuit and up to how many amps will it need to measure.
How many amps does a 12 volt boat trolling motor use per hour?
You asked the wrong question. You need to know how many amps the motor uses. Then you can multiply amps times volts and get watts. Then you can multiply watts by hours and get watt hours. (For house electricity you pay for kilowatt hours.) A kilowatt is 1,000 watts.
For 225 kw motor what is the amps star and delte and what is the cable size required?
Need to know what the voltage of the motor is.
What size motor start capacitor is required for a 0.6 hp electric motor?
As an electrician I can give you a vague answer with the information given. You need more specifics to do the calculations for the load amps and the supply voltage.The particular motor I looked at is a .6hp fan motor -4.0 Amps @ 230V(2650 x Full load amps ) divided by supply Voltage = MFDExample 2650 x 4amps = 10600 divided by 230volts = 46 MFDBut this is a general statement. The proper cap should be determined by researching the particular model you have.
How many amps do you need to start a pocket bike?
7 pocket amps
What size of circuit breaker do you use for 25amperes induction motor?
Read the specification plate on the motor to determine the amount of current that the motor uses, as well as the voltage and phase. Most likely, it will be a 3 phase motor, so you can't simply connect it to your house wiring, but without sufficient information, it is impossible to tell you all of the specifics. <<>> The code book rates the amperage of a three phase 40 HP motor by different voltages. at 200 volts - 120 amps, 230 volts - 104 amps, 460 volts - 52 amps and 575 volts - 52 amps. A breaker for a motor has to be sized to 250% of the motors full load amps. Also the wire size for a motor has to be 125% of the motor full load amps.
