How many amps is a 20 hp motor?

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?

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 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.

Motor horsepower Full load amps 230VAC Full load amps 460VAC
1 3.3 1.7
1.5 4.7 2.4
2 6 3.0
3 9 4.5

How many watts is a 1 hp motor?

One electric horsepower is equal to exactly 746 watts.

Motorization