How many amps does a 1 5 HP 3 phase motor draw?

How many amps does a 1.5 hp motor pull?

Common Horsepower to Amps Conversions

Horsepower Amps Efficiency
.75 HP 5.18 A 90%
1 HP 6.91 A 90%
1.25 HP 8.63 A 90%
1.5 HP 10.4 A 90%

How many amps does a 1hp 3 phase motor draw?


HP 1 Phase Amps 3 Phase Amps
115 volt 208 volt
1/2 9.8 2.4
3/4 13.8 3.5
1 16 4.6

How much current does a 3 phase motor draw?

Three Phase Motors

0.75 kW 1 3.5
1.1 kW 1.5 5
1.5 kW 2 6.4
2.2 kW 3 9.5

How do you calculate the starting current of a 3 phase motor?

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. The actual starting current depends on the type of starter it’s wired to, and what motor you have.

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

Full-Load Current in Amperes Single-Phase Alternating Current Motors

HP 115V 230V
5 56 28
7-1/2 80 40
10 100 50
The voltages listed are rated motor voltages. The listed currents are for system voltage ranges of 110 to 120 and 220 to 240.

How many amps does a 5 hp motor draw?

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

How many amps does a 5 horse 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
3 9 4.5
5 15 7.5
7.5 22 11
10 27 14

How do you calculate amps in a 3 phase circuit?

Divide the power consumption in watts by the line voltage multiplied by the power factor to find the amperage. For three phase circuits the power factor is the square root of 3. If your calculator doesn’t have a square root function, use 1.73 as an approximation of the square root of 3.

What is full load current of a 3 phase motor?

For three-phase, full load current for the resistive load is equal to the three-phase power divided by 1.732 times of voltage. Here power factor will be unity for resistive loads. Full load current I, I =P.

What size breaker do I need for a 3-phase motor?

For AC, 3 phase supply (400 /440 Volts) the rating of Breaker will be 6 Amps, 3 Pole or 4 Pole.

How do you calculate starting amps?

You can multiply the code (amps) times the Horsepower of motor to determine starting amps. Find a list of codes and the amps here. Cycles (Hz) – All U.S. electrical appliances run at 60 cycles per second.

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How much current does a motor draw on startup?

Starting current is the current required to start a motor from stand-still condition. It is essential that a high current is required for producing starting torque. Generally starting current is 6 – 8 times FLC (full load current).

How do you calculate no load current of a 3 phase motor?

It means the three-phase motor will be connected in star connection (one end short and another end supply). The motor will take 10% of the full load current. therefore, No load current at star connection = 0.1 x Motor Full load current.