**Contents**show

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

AMP DRAW BASED ON HORSEPOWER

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

115 volt | 230 volt | |

5 | 56 |
15.2 |

7-1/2 | 80 | 22 |

10 | 100 | 28 |

## How much current does a 5 hp motor draw?

Full-Load Current in Amperes Single-Phase Alternating Current Motors

HP | 115V | 230V |
---|---|---|

5 |
56 |
28 |

7-^{1}/2 |
80 | 40 |

10 | 100 | 50 |

The voltages listed are rated motor voltages. The listed currents are for system voltage ranges of 110 to 120 and 220 to 240. |

## What size breaker do I need for a 5hp 3 phase motor?

Full Load Current: Three Phase AC Motors

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

3 | 230V 460V | 15 15 |

5 | 230V 460V | 15 15 |

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

10 | 230V 460V | 50 30 |

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

Divide the power consumption in watts by the line voltage multiplied by the power factor to find the amperage. For three phase circuits the power factor is **the square root of 3**. If your calculator doesn’t have a square root function, use 1.73 as an approximation of the square root of 3.

## 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 much electricity does a 10 hp motor use?

If the motor is loaded to 10 hp, which it probably isn’t, its drawing 746 watts per hp divided by the efficiency, probably about 90% for a motor that size or a total of **8.29 KWH for each hour** it runs. At 14 cents per KWH, that would be $1.16.

## How many amps does a 1 HP pool pump draw?

The 1 HP Power Flo Matrix PN SPX1510Z1XE is rated for **12 amps**.

## How much current would a 1.5 HP 240v motor draw?

The 1.5 HP Baldor motor that turns at 1725 will draw **18 amps** according to its name plate.

## How do you measure a breaker for a 3 phase motor?

Breaker size must be rated for a **minimum of 125% of the full-load current of the motor** it is protecting, rounded up to the next standard breaker size. For example, the full-load current of a 5 HP motor at 460V is 7.6 Amps. The breaker must be sized for 7.6 * 1.25 = 10 Amps .

## What size wire do I need for a 30 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) |
---|---|---|

25 | 34 | 6 |

30 |
40 |
6 |

40 | 52 | 4 |

50 | 65 | 4 |