Best answer: What is the starting current of 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. Note, that a 1 HP motor not fully loaded (good practice) will show current draw of less than 8 amps.

How do you calculate the starting current of a motor?

An induction motor, starting “across the line”, will typically have an instantaneous draw 6x the kw it is rated to run at. e.g. a 10 hp motor is rated at 7.46 kw, so on starting it may draw 75 kw. On 480 volts 3 phase, the amperage will be I = W / (E x 1.73) = 75,000 / (480 x 1.73) = 90.4 amps.

How much current does a 1 HP motor draw?

AMP DRAW BASED ON HORSEPOWER

HP 1 Phase Amps
115 volt 230 volt
1/2 9.8 4.9
3/4 13.8 6.9
1 16 8

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 is 3 horsepower?

AC Motor Full Load Amperes

HP 200 Volts 440-480 Volts
1 4.8 2.1
1.5 6.9 3.0
2 7.8 3.4
3 11 4.8

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.

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How many amps does a 1 HP pool pump draw?

1 HP is 746 watts x 1.5 HP = 1,119 watts. 1,119watts ÷ 120volts= 9.325 amps.

How many kW is a 5hp motor?

Hp to kW Conversion Table

Horsepower Kilowatts Rounded Kilowatts
1 hp 0.745699872 kW 1 kW
5 hp 3.72849936 kW 4 kW
10 hp 7.45699872 kW 7 kW
15 hp 11.18549808 kW 11 kW

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 .
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