Essential Business
PRODUCT HIGHLIGHTS
Table of Resources
- Allowable Ampacities Insulated Conductors (In a Raceway)
- Approximate Full Load Amperes 3 Phase AC Motors
- Common Conversion Factors
- Conduit Fill Chart
- Direct Current Motor Full Load Current
- Electrical Formulas
- Full Load Current in Amperes - Single Phase
- Full Load Current in Amperes in 3 Phase
- Full Load Formula
- NEMA Locking Blade Configurations Chart
- NEMA Straight Blade Configurations Chart
- Ohm's Law
- Shipping Links
- Tempurature Conversion Chart
Full Load Current in Amperes in 3 Phase
Resources : Full Load Current in Amperes in 3 Phase
Motor Horsepower | Motor Ampere | Size Breaker | Size Starter | Heater Ampere | Size Wire | Size Conduit | |
1 | 230V | 4.2 | 15 | 0 | 4.83 | 12 | 3/4" |
460V | 2.1 | 15 | 0 | 2.415 | 12 | 3/4" | |
1 1/2 | 230V | 6 | 15 | 0 | 6.9 | 12 | 3/4" |
460V | 3 | 15 | 0 | 3.45 | 12 | 3/4" | |
2 | 230V | 6.8 | 15 | 0 | 7.82 | 12 | 3/4" |
460V | 3.4 | 15 | 0 | 3.91 | 12 | 3/4" | |
3 | 230V | 9.6 | 15 | 0 | 11.04 | 12 | 3/4" |
460V | 4.8 | 15 | 0 | 5.52 | 12 | 3/4" | |
5 | 230V | 15.2 | 15 | 1 | 17.48 | 12 | 3/4" |
460V | 7.6 | 15 | 0 | 8.74 | 12 | 3/4" | |
7 1/2 | 230V | 22 | 40 | 1 | 25.3 | 10 | 3/4" |
460V | 11 | 30 | 1 | 12.65 | 12 | 3/4" | |
10 | 230V | 28 | 50 | 2 | 32.2 | 10 | 3/4" |
460V | 14 | 30 | 1 | 16.1 | 12 | 3/4" | |
15 | 230V | 42 | 70 | 2 | 48.3 | 6 | 1" |
460V | 21 | 40 | 2 | 24.15 | 10 | 3/4" | |
20 | 230V | 54 | 100 | 3 | 62.1 | 6 | 1" |
460V | 27 | 50 | 2 | 31.05 | 10 | 3/4" | |
25 | 230V | 68 | 100 | 3 | 78.2 | 4 | 1-1/2" |
460V | 34 | 50 | 2 | 39.1 | 8 | 1" |
- Overcurrent device may have to be increased due to starting current and load conditions. See NEC 430-52, Table 430-152. Wire based on 75°C terminations and insulation.
- Overload heater must be based on motor nameplate and sized per NEC 430-32.
- Conduit size based on Rigid metal conduit with some spare capacity. For minimum size and other conduit types, see NEC Appendix C, or UGLY'S pages 102-122.