# How many amps is a 20 hp motor?

Contents
HP 1 Phase Amps 3 Phase Amps
115 volt 208 volt
10 100 30.8
15 46.2
20 59.4

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

HP 200 Volts 208 Volts
20 62.1 59.4
25 78.2 74.8
30 92 88
40 120 114

## How many amps are in a horsepower?

Common Horsepower to Amps Conversions

Horsepower Amps Voltage
1 HP 6.91 A 120 V
1.25 HP 8.63 A 120 V
1.5 HP 10.4 A 120 V
1.75 HP 12.1 A 120 V

## What size breaker do I need for a 20 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 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.

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## 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.

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

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

## 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.

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

1 Horsepower is 745.7 watts, so a 1.5 HP motor would require a maximum of 1118.55 watts. 1118.55 W / 220V equals 5.084 amps, so in theory your motor will need just over 5 amps of current.

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

Since it’s an aboveground pool pump it’s an uprated model and draws in the vicinity of 10 to 12 Amps at 120 volts.

## 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 25 hp motor draw?

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 does a motor need?

You must size the conductors at 125% of the motor FLC [430.22(A)]. You must size the overloads no more than 115% to 125% of the motor nameplate current rating, depending on the conditions [430.32(A)(1)].

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## 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.

## How many amps does a 1 HP 3 phase motor draw?

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