# How many amps does a 3hp motor draw?

## How many amps does a 3hp motor draw?

AMP DRAW BASED ON HORSEPOWER

HP | 1 Phase Amps | 3 Phase Amps |
---|---|---|

115 volt | 575 volt | |

2 | 24 | 2.7 |

3 | 34 | 3.9 |

5 | 56 | 6.1 |

## How do you calculate full load amps on a 3 phase motor?

For three-phase, full load current for the resistive load is equal to the three-phase power divided by 1.732 times of voltage. Here power factor will be unity for resistive loads. Full load current I, I =P.

**How many amps does a 3 HP 480 volt motor draw?**

AC Motor Full Load Amperes

HP | 200 Volts | 440-480 Volts |
---|---|---|

2 | 7.8 | 3.4 |

3 | 11 | 4.8 |

5 | 17.5 | 7.6 |

7.5 | 25.3 | 11 |

### How do you calculate 3 phase motor horsepower?

The quickest method to closely estimate motor horsepower is to use a digital clamp meter to measure current and voltage to the motor, and then perform a simple calculation. Use this formula to estimate motor horsepower. Horsepower(hp)= Voltage x Amperage x % EFF x power factor x 1.73/746.

### How many amps does a 2.2 kW motor draw?

Single Phase Motors

MOTOR RATING | HP | APPROX. F.L.C. AT LINE VOLTAGE |
---|---|---|

0.75 kW | 1 | 15 |

1.1 kW | 1.5 | 21 |

1.5 kW | 2 | 26 |

2.2 kW | 3 | 37 |

**How is motor current rating calculated?**

“Now the formula,which you know, KWH = Line Current * Line Voltage * Power factor can be applied. The only unknown value ‘current’ can be calculated.” You must not use de time, as P= dW/dt, the correct is kW = Line Current * 1,73*Line Voltage * Power factor * efficiency.

## What is the formula for electric current?

Current is usually denoted by the symbol I. Ohm’s law relates the current flowing through a conductor to the voltage V and resistance R; that is, V = IR. An alternative statement of Ohm’s law is I = V/R.