Table of Contents
- 1 What size breaker do I need for a 2 hp motor?
- 2 How many amps does a 2hp motor draw?
- 3 What size breaker do I need for a 15 hp motor?
- 4 What is the input current of 2hp single phase motor?
- 5 How many HP is 15 amps?
- 6 What size motor needs overload protection?
- 7 How much power does a 3 phase electric motor produce?
- 8 How many amps/hp is a 115v motor?
What size breaker do I need for a 2 hp motor?
How to Calculate How What Size Circuit Breaker a Machine will Need:
| HorsePower of Main Motor | 220 Volts, 1 phase | 220 Volts, 3 phase |
|---|---|---|
| 1 Hp | 5.6 Amps | 2.8 |
| 2 | 11.2 | 5.6 |
| 3 | 16.8 | 8.4 |
| 4 | 22.4 | 11.2 |
How many amps does a 2hp motor draw?
AMP DRAW BASED ON HORSEPOWER
| HP | 1 Phase Amps | 3 Phase Amps |
|---|---|---|
| 115 volt | 230 volt | |
| 2 | 24 | 6.8 |
| 3 | 34 | 9.6 |
| 5 | 56 | 15.2 |
What would use a double 30 amp breaker?
electric dryers
Double-pole breaker The 15-amp and 20-amp breakers often handle baseboard heaters, 30-amp serve water heaters and electric dryers, 40- and 50-amp are for electric ranges, and the 70-amp could serve a large air conditioner or a subpanel.
How many amps does a 15 hp motor draw at 480 volts?
AC Motor Full Load Amperes
| HP | 200 Volts | 440-480 Volts |
|---|---|---|
| 10 | 32.2 | 14 |
| 15 | 48.3 | 21 |
| 20 | 62.1 | 27 |
| 25 | 78.2 | 34 |
What size breaker do I need for a 15 hp motor?
Full Load Current: Three Phase AC Motors
| Motor Horsepower | Size Breaker | |
|---|---|---|
| 10 | 230V 460V | 50 30 |
| 15 | 230V 460V | 70 40 |
| 20 | 230V 460V | 100 50 |
| 25 | 230V 460V | 100 50 |
What is the input current of 2hp single phase motor?
Full-Load Current in Amperes Single-Phase Alternating Current Motors
| HP | 115V | 230V |
|---|---|---|
| 3/4 | 13.8 | 6.9 |
| 1 | 16 | 8 |
| 1 – 1/2 | 20 | 10 |
| 2 | 24 | 12 |
How many amps does a 1/2 HP well pump draw?
5.0 Amps
When delivering 1/2hp to the pump, it draws 5.0 Amps. If that motor operates at its service factor of 0.8, it will draw 6.0 Amps. Most installations have motors near the maximum load.
What is a double 15 amp breaker?
A double pole breaker is usually used on a 240v load, like a water heater, AC, oven, etc. The 15 amps going out on one leg to the 240 v load is the same 15 amps returning on the other leg, so yes, it is good for 15 amps. If one side faults, the tripping mechanism interrupts both sides.
How many HP is 15 amps?
Common Amps to Horsepower Conversions
| Amps | Horsepower | Efficiency |
|---|---|---|
| 15 A | 2.17 HP | 90\% |
| 20 A | 2.9 HP | 90\% |
| 25 A | 3.62 HP | 90\% |
| 30 A | 4.34 HP | 90\% |
What size motor needs overload protection?
The NEC states this overload device shall be sized at no more than 125\% of the motor’s FLA for motors with a service factor of 1.15 or more. Use an overload protection device with a rating of 30 amps because the rating cannot exceed 125\% of the FLA. This overload protection device can be a fuse or circuit breaker.
How many volts in a single phase full load running AMP?
not present Single Phase Full Load Running AMPS: 20 Single Phase Start Up AMPS: 208/230 vo Breaker Size Three Phase Start Up AMPS: 460/480 vol Motor HP volt 2 10 20 20 N/A 3 15 30 30 N/A
What are the HP and full-load currents of single phase motors?
Single-Phase Motors – HP and Full-Load Currents Power Power Full Load Current (amp) Full Load Current (amp) Full Load Current (amp) 1 1/2 1.1 20 11 10 2 1.5 24 13.2 12 3 2.3 34 18.7 17 5 3.8 56 30.8 28
How much power does a 3 phase electric motor produce?
Three-Phase Motors – HP and Full-Load Currents 1 hp (English horse power) = 745.7 W = 0.746 kW = 550 ft lb/s = 2,545 Btu/h = 33.000 ft lb/m = 1.0139 metric horse power ~= 1.0 KVA Direct Current Motors – Power and Full Load Currents for 115V – the amps is twice the amps for 230V
How many amps/hp is a 115v motor?
Full load currents for 460 volts, 230 volts and 115 volts motors – single and 3-phase As a “rules of thumb” amps horsepower rating can be estimated to 115 volts motor – single-phase : 14 amps/hp