# How many amps does a 150 hp motor draw?

Contents

## What size breaker do I need for a 150 hp motor?

Full-Load Current and Circuit Protection Data for Three-Phase AC Motors

Motor Horsepower Breaker Size
75 230 V 460 V 300 200
100 230 V 460 V 400 200
125 230 V 460 V 500 250
150 230 V 460 V 600 300

## How many amps does a 125 hp motor draw?

Induction-Type Squirrel Cage and Wound Rotor (Amperes)
HP 115 Volts 200 Volts
75 221
100 285
125 359

## How do I convert HP to amps?

How to use the hp to amps calculator?

1. Estimate the power in watts (the nominator of the expression), 1 hp * 746 = 746 W ;
2. Evaluate the product in the denominator, 200 V * 0.92 * 90% = 165.6 V . …
3. Make a fraction of these numbers and find the final horsepower to amps value, 746 / 165.6 = 4.505 A .

## How do you calculate amps from motor HP?

How to Convert Horsepower to Amps

1. Amps = (Horsepower × 746) ÷ Efficiency ÷ Volts.
2. Watts = Horsepower × 746.
3. Watts = Watts η
4. Amps = Watts ÷ Volts.
5. Amps = HP × 746 V × η × PF.
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## How many amps does a motor draw?

AMP DRAW BASED ON HORSEPOWER

HP 1 Phase Amps 3 Phase Amps
115 volt 230 volt
1 16 4.2
1-1/2 20 6
2 24 6.8

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

Example: A 5 HP motor at 230V, 3PH is12. 4 amps.

## How many amps does a 250 hp motor draw?

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

150 360 180
200 480 240
250 580 290
300 696 348

## How many amps does a 100 hp motor draw?

HP 200 Volts 440-480 Volts
60 177 77
75 221 96
100 285 124
125 359 156

## How many amps does a 1.5 hp motor?

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

## How many HP is a 3 amp motor?

Common Amps to Horsepower Conversions

Amps Horsepower Voltage
2 A .29 HP 120 V
3 A .43 HP 120 V
4 A .58 HP 120 V
5 A .72 HP 120 V

## How do you calculate amps on a motor?

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.