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depending on 1phase or 3phase voltage motor , the amphere requirement is found out

for 3phase AC motor use this formula: (HP x 746)/(1.73 x E x Eff x PF)

for 1phase AC motor : (HP x 746) / (E x Eff x PF)

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Q: How many AMPs does a 7.5HP motor need?
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How many amps does a 50 horse power electric motor use?

Need to know the voltage of the motor.


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.


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 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.


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.

Related questions

You have a 1961 Johnson 75hp outboard motor model no v4sl-14b need a owners manuial or a print out of the motor so you can order parts for the ignition no spark can anyone help?

You have a 1961 Johnson 75hp outboard motor model no v4sl-14b need a owners manual or a print out of the motor so you can order parts for the ignition no spark can anyone help?


How many amps does a 50 horse power electric motor use?

Need to know the voltage of the motor.


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.


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.


How many amps does a 12 volt boat trolling motor use per hour?

The amperage drawn by a trolling motor will depend on the specific model and its power rating. To calculate the amperage per hour, you would need to know the wattage of the motor. You can use the formula: Amps = Watts / Volts.


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 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.


How many amps do you need to start a pocket bike?

7 pocket amps


How many amps do you need to charge a car battery?

To charge a car battery you need aproximatly 8000 amps To charge a car battery you need aproximatly 8000 amps


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%.


What is the running amps of a 45 kW motor?

To determine the running amps of a 45 kW motor, you would need to know the voltage at which it operates. You can use the formula: Amps = (kW x 1000) / (Volts x power factor). Once you have the voltage and power factor information, you can plug them into the formula to calculate the running amps.


How many watts in 120v 60Hz?

You need amps