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

115 volt | 208 volt | |

5 |
56 | 16.7 |

7-1/2 | 80 | 24.2 |

10 | 100 | 30.8 |

## How many amps does a 5 hp motor use?

A 5 HP motor at 230V, 3PH is12.

Using the formula above, multiply 12.4 amps by 10% for a result of 1.24. Add this total to 12.4 for a total of 13.64 amps.

## What size breaker do I need for a 5 hp motor?

In fact code recommends a 60 amp circuit breaker for a 5 hp 230v motor, but with overload protection.

## How do you convert HP to amps?

The conversion from amps, a measure of electric current, to horsepower, a measure of power output by a motor, can be done using a fairly simple formula. Thus, horsepower is equal to the current in amps times the voltage in volts times the efficiency times the power factor, divided by 746.

## How many amps does a 7.5 hp motor draw?

These are only intended to be guidelines and in all cases the full load amps of the motor nameplate should be used for final calculations.

…

Here are the Full Load Amp (FLA) values for typical 230VAC and 480VAC 3 phase motors.

Motor horsepower | Full load amps 230VAC | Full load amps 460VAC |
---|---|---|

3 | 9 | 4.5 |

5 | 15 | 7.5 |

7.5 | 22 | 11 |

10 | 27 | 14 |

## How many amps does a 5 HP 3 phase motor draw?

AC Motor Full Load Amperes

HP | 200 Volts | 220-240 Volts |
---|---|---|

3 | 11 | 9.6 |

5 | 17.5 | 15.2 |

7.5 | 25.3 | 22 |

10 | 32.2 | 28 |

## What is the full load current of a 1 hp motor?

For single phase motors, NEC table 430-148 gives 230 Vac full load current of 8 amps for a 1 HP motor.

## What size breaker do I need for a 21 amp motor?

How to Calculate How What Size Circuit Breaker a Machine will Need:

HorsePower of Main Motor | 220 Volts, 1 phase | 440 Volts, 3 phase |
---|---|---|

10 | 56 | 14 |

15 | 84 | 21 |

20 | 112 | 28 |

25 | 140 | 35 |

## What size wire do I need for a 1 hp motor?

Single Phase (230 Volt) – Wire Size Selection Guide* | ||
---|---|---|

HP | Cable Length | |

1/2 | 14 | 14 |

3/4 | 14 | 14 |

1 | 14 | 12 |

## What size breaker do I need for a 7.5 hp motor?

You need 50 amp rated wire with a 50-100 amp breaker.

## How many watts is a 1 hp motor?

One electric horsepower is equal to exactly 746 watts.

## How many amps does a 1.5 HP well pump draw?

For example a 1.5 HP Baldor motor turning 3450 rpm draws 13.4 amps on 120 volt service.

## How much power does a 2 hp motor use?

How many watts does a 2 HP motors have? If a 2 horse power motor is doing 2 horsepower of work then in the load about 1500 Watts of energy is used in the load.

## What size breaker do I need for a 10 hp motor?

Full Load Current: Three Phase AC Motors

Motor Horsepower | Size Breaker | |
---|---|---|

7-1/2 | 230V 460V | 40 30 |

10 | 230V 460V | 50 30 |

15 | 230V 460V | 70 40 |

20 | 230V 460V | 100 50 |

## How many amps does a 10 hp motor pull?

AMP DRAW BASED ON HORSEPOWER

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

115 volt | 208 volt | |

5 | 56 | 16.7 |

7-1/2 | 80 | 24.2 |

10 | 100 | 30.8 |

## What size wire do I need for a 10 hp motor?

Electrical motor wiring data – NEMA amps, starter size, HMCP size for motors ranging 1/2 to 500 hp

Motor HP | NEMA amps | Phase Wires (AWG) |
---|---|---|

7 1/2 | 11 | 12 |

10 | 14 | 10 |

15 | 21 | 10 |

20 | 27 | 8 |