**Contents**show

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

Full Load Current: Three Phase AC Motors

Motor Horsepower | Motor Ampere | |
---|---|---|

1 | 230V 460 V |
4.2 2.1 |

1-1/2 | 230V 460V | 6.0 3.0 |

2 | 230V 460V | 6.8 3.4 |

3 | 230V 460V | 9.6 4.8 |

## How many amps does a 1 hp pump draw?

A 240 volt, 1 horsepower well pump draws **10 amps** of current. When the pump starts, it can draw up to 35 amps, but only for 5–10 seconds.

## What is the power of 1 hp motor?

If the motor is fully loaded, it will provide output power of 1 HP = **(1 X 0.746) kW = 0.746kW**. Electrical Input Power = (Output Power/Efficiency). Assuming 90% efficiency, Input Power = 0.746/0.9 = 0.83kW.

## What is full load current?

Definition of ‘full load current’

A full load current is **the largest current that a motor or other device is designed to carry under particular conditions**. … A full load current is the largest current that a motor or other device is designed to carry under particular conditions.

## How many amps does a 20hp motor draw?

AC Motor Full Load Amperes

HP | 200 Volts | 208 Volts |
---|---|---|

20 | 62.1 |
59.4 |

25 | 78.2 | 74.8 |

30 | 92 | 88 |

40 | 120 | 114 |

## How much current does a 1 hp submersible pump draw?

A 1 HP submersible pump engine will draw a **3.2-amper current** if it is a single-phase motor at 230 volts of voltage. If it is a three-phase motor at 440 volts, it will draw a maximum 1.7-amper current.

## How much power does a 1 HP well pump use?

Different Sizes of Well Pumps and Wattages

Size of Pump Motor | Running Wattage | Starting Wattage |
---|---|---|

1 HP | 2,000 to 2,400 |
4,000 to 7,200 |

1.5 HP | 2,500 to 2,800 | 5,000 to 8,400 |

2 HP | 3,750 to 4,000 | 7,500 to 12,000 |

3 HP | 5,000 to 5,500 | 10,000 to 16,500 |

## What size breaker do I need for a 1 HP well pump?

So, the horsepower of the pump is the factor. For example, ½ HP pump needs a 15 amp breaker. But the ideal circuit breaker will be **25 amps** for a 1 HP pump.

## How do I calculate amps?

Calculating Amperage

A simple formula for calculating amps is **to take the watts and divide that by the volts**. So, for instance, if the wattage of the lighting fixture you’re working with is 60 and the volts are 12, divide 60 by 12 and you will get five, which are the amps.