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 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 many amps does a 5 hp motor draw at 480 volts?

AC Motor Full Load Amperes

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

3 | 11 | 4.8 |

5 | 17.5 | 7.6 |

7.5 | 25.3 | 11 |

10 | 32.2 | 14 |

## How do you calculate amps from motor HP?

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 watts does a 5HP electric motor use?

1 Horsepower is equal to 745.7 watts of electrical power, so in theory a 5HP motor operating at 100% efficiency will consume about 3.728kW of power.

## What size breaker do I need for a 4 hp motor?

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

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

1 Hp | 5.6 Amps | 2.8 |

2 | 11.2 | 5.6 |

3 | 16.8 | 8.4 |

4 | 22.4 | 11.2 |

## How many amps does a 5 HP 3 phase 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 25 hp motor pull?

AMP DRAW BASED ON HORSEPOWER

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

115 volt | 208 volt | |

15 | — | 46.2 |

20 | — | 59.4 |

25 | — | 74.8 |

## What size breaker do I need for a 40 amp motor?

Full Load Current: Three Phase AC Motors

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

10 | 230V 460V | 50 30 |

15 | 230V 460V | 70 40 |

20 | 230V 460V | 100 50 |

25 | 230V 460V | 100 50 |

## What size breaker do I need for a 100 hp motor?

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

Motor HP | NEMA amps | Motor Circuit Protector type HMCP (ampere) |
---|---|---|

60 | 77 | 150 |

75 | 96 | 150 |

100 | 125 | 200 |

125 | 156 | 250 |

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

For a 1 HP 3phase induction motor draws a current =W /V, so 1 HP is equal to 746 watts, or rounded off to 750 watts, so it will be 750 /415 volts =1.7 amperes, approximately and at a powerfactor at unity means 1.

## How many watts is in one horsepower?

The electrical equivalent of one horsepower is 746 watts in the International System of Units (SI), and the heat equivalent is 2,545 BTU (British Thermal Units) per hour. Another unit of power is the metric horsepower, which equals 4,500 kilogram-metres per minute (32,549 foot-pounds per minute), or 0.9863 horsepower.

## How do I know what AMP my motor is?

Given horsepower and volts, it is possible to calculate amps. The calculation of amps uses Ohm’s Law, which is amps times volts equals watts. Multiply the horsepower by 746 watts. For example, an engine at two horsepower with 230 volts would be calculated as two horsepower times 746 watts, which equals 1492.

## How many amps is 3 horsepower?

Common Horsepower to Amps Conversions

Horsepower | Amps | Voltage |
---|---|---|

3 HP | 20.7 A | 120 V |

3.5 HP | 24.2 A | 120 V |

4 HP | 27.6 A | 120 V |

4.5 HP | 31.1 A | 120 V |

## How many watts is a 1hp motor?

One electric horsepower is equal to exactly 746 watts.

## How much power does a 1hp motor consume?

So, 1 HP for 24 hour = 746×24= 17904 Watt-hour which is equal to 17904/1000= 17.904 units. Hence, 17.904 units of Power will be consumed by the 1 HP motor when run continuously for 24 hours.