What size breaker do I need for a 5 hp motor?
A 5hp single phase AC motor has a load current of 28 Amps. So 10GA. wire with a 30 Amp breaker will work.
How many amps does a 5 HP 220v motor draw?
13.64 amps
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.
What size conductors are required for a 5hp single phase 208V motor?
A: The full-load current of a 5-horsepower, 208-volt three-phase motor is 16.7 amperes according to Table 430-150. The motor branch circuit conductors must have a minimum capacity of 125 percent of motor full-load current to comply with Section 430-22. This results in a minimum conductor ampacity of (1.25 x 16.7) 20.9.
What size breaker do I need for 208 volts?
I would go with the 40amp breaker to avoid nuisance tripping, #8 should be fine as this has a 40amp ampacity rating.
What size breaker do I need for a 5 hp air compressor?
Some example circuit breaker sizes for air compressors are: 3 HP: 30-amp circuit breaker. 5 HP: 40-amp circuit breaker.
What size breaker do I need for a 3-phase 5HP motor?
Full Load Current: Three Phase AC Motors
| Motor Horsepower | Size Breaker | |
|---|---|---|
| 3 | 230V 460V | 15 15 |
| 5 | 230V 460V | 15 15 |
| 7-1/2 | 230V 460V | 40 30 |
| 10 | 230V 460V | 50 30 |
How many amps does a 5hp 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 do I know what size motor breaker I need?
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)]. You must size the short-circuit ground-fault protection device from 150% to 300% of the motor FLC [Table 430.52].
How many amps does a 5 hp compressor draw?
around 21 amps
You can look at the amps to see the correct horsepower on it. A 5 hp will be around 21 amps, and a 7.5 hp will be around 35 amps.
How many amps does a 5hp 3 phase motor draw?
AMP DRAW BASED ON HORSEPOWER
| HP | 1 Phase Amps | 3 Phase Amps |
|---|---|---|
| 115 volt | 230 volt | |
| 5 | 56 | 15.2 |
| 7-1/2 | 80 | 22 |
| 10 | 100 | 28 |
How many amps does a 5hp 240v motor draw?
How do you select a circuit breaker for a motor?
When choosing a circuit breaker to protect a motor, two characteristics of the motor should be noted, one is that it has a certain overload capacity, and the other is that its starting current is usually several to ten times the rated current.
Can you use a 240V breaker for 208V?
So bottom line, no problem using 240V on a 208V listed panel, at least temporarily. But if it is 3 phase service, you have an issue with the 120/240V 3 phase 4 wire issue. In a panel made specifically for 120/208V 3Ph4W, there are no restrictions on putting 1 pole breakers anywhere you want to.