How many amps is a 3 horsepower motor?

How many amps does a 3 HP motor have?

Common Horsepower to Amps Conversions

Horsepower Amps Voltage
3 HP 20.7 A 120 V
3.5 HP 24.2 A 120 V
4 HP 27.6 A 120 V
4.5 HP 31.1 A 120 V

What size breaker do I need for a 3 HP motor?

What size breaker do I need for a 3 HP motor? A 20 amp breaker is all you’d ever need for a 220v 3HP motor. It wouldn’t hurt anything to run 30amp circuits if you so choose, but it’s overkill.

How many amps does a 3 HP 480 volt motor draw?

AC Motor Full Load Amperes

HP 200 Volts 440-480 Volts
2 7.8 3.4
3 11 4.8
5 17.5 7.6
7.5 25.3 11

How many amps is a 3/4 HP motor?

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 size breaker do I need for a 200 hp motor?

What size breaker do I need for a 200 hp motor? So, assuming an inverse time breaker, the 200 hp motor would have a maximum branch circuit OCPD of 240 amps x 250% = 600 amp.

Can I use 12 gauge wire on a 30 amp breaker?

“Twelve-gauge wire is good for 20 amps, 10-gauge wire is good for 30 amps, 8-gauge is good for 40 amps, and 6-gauge is good for 55 amps,” and “The circuit breaker or fuse is always sized to protect the conductor [wire].”

IT IS INTERESTING:  Your question: How fast does a 5hp motor go?

What size breaker do I need for a 40 hp motor?

Full-Load Current and Circuit Protection Data for Three-Phase AC Motors

Motor Horsepower Breaker Size
20 230 V 460 V 100 50
25 230 V 460 V 100 50
30 230 V 460 V 125 70
40 230 V 460 V 175 100

What size breaker do I need for a 21 amp motor?

How to Calculate How What Size Circuit Breaker a Machine will Need:

HorsePower of Main Motor 220 Volts, 1 phase 440 Volts, 3 phase
10 56 14
15 84 21
20 112 28
25 140 35

How much current is needed for a 5hp motor?

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.