What size breaker do I need for a 10 hp motor?
Full Load Current: Three Phase AC Motors
|Motor Horsepower||Size Breaker|
|5||230V 460V||15 15|
|7-1/2||230V 460V||40 30|
|10||230V 460V||50 30|
|15||230V 460V||70 40|
How do you calculate 10 hp motor current?
A 10 HP AC single phase motor has 230 Volts of voltage flow with 0.86 power factor, calculate the current. AC Current = 746*10 / (230*0.86) = 37.71 Amps.
What size breaker do I need for a 3 phase motor?
Breaker size must be rated for a minimum of 125% of the full-load current of the motor it is protecting, rounded up to the next standard breaker size. For example, the full-load current of a 5 HP motor at 460V is 7.6 Amps. The breaker must be sized for 7.6 * 1.25 = 10 Amps .
How many amps does a 10hp single phase motor draw?
Full-Load Current in Amperes Single-Phase Alternating Current Motors
|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 3 HP motor draw?
Common Horsepower to Amps Conversions
|2 HP||13.8 A||120 V|
|2.5 HP||17.3 A||120 V|
|3 HP||20.7 A||120 V|
|3.5 HP||24.2 A||120 V|
How many amps does a 30 HP 3 phase motor draw?
AC Motor Full Load Amperes
|HP||200 Volts||440-480 Volts|
How many amps does a 7.5 kW 3 phase motor draw?
Three Phase Motors
|MOTOR RATING||HP||APPROX. F.L.C. AT LINE VOLTAGE|
Why do we use 1.73 for three phase?
In a three phase circuit, the use of the constant 1.732 results from the fact that not all three phases are producing the same amount of power at the same time. … Suffice it to say that the correct power from a three-phase system at any point in time is found by multiplying by the square root of 3.
How many amps does a 3 HP 240v motor draw?
AMP DRAW BASED ON HORSEPOWER
|HP||1 Phase Amps||3 Phase Amps|
|115 volt||575 volt|
How many HP is 15 amps?
Common Amps to Horsepower Conversions
|15 A||2.17 HP||90%|
|20 A||2.9 HP||90%|
|25 A||3.62 HP||90%|
|30 A||4.34 HP||90%|
How do I convert HP amps to single phase?
How to convert horsepower to amps? Hp to amps formulas
- Single-phase AC. I = P * 746 / (V * PF * η) ;
- Three-phase AC, line-to-line voltage. I = P * 746 / (√3 * V * PF * η) ;
- Three-phase AC, line-to-neutral voltage. I = P * 746 / (3 * V * PF * η) .
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.