Horsepower to Amperes Calculator
Convert horsepower (HP) to motor current (Amps) using voltage, efficiency, and power factor. Supports single-phase and three-phase AC motors.
horsepower to amperes calculator
Current (A) = (HP *0.746* 1000)/(E3.sqrt(3) V PF eta) in 3phi motors. To 1 Philipper, add no square root of three to it. To obtain accurate results, efficiency and PF need to be taken into consideration.
Formula & Table Summary:
- P(kW) = HP × 0.746
- 1φ: I = (HP × 0.746 × 1000) / (V × PF × η)
- 3φ: I = (HP × 0.746 × 1000) / (√3 × V × PF × η)
3 phase hp to amps calculator
This horse power to Amperes Calculator allows you to estimate the current that a motor will draw based on its horsepower rating, its various voltages and its efficiency and its power factor. It can operate AC motors in three-phase and single phase. This can be handy when trying to size circuit breaker, cable, and transformer loads. It has many applications in industrial motors installations, in pump sizing, HVAC as well as electrical design work.
single phase hp to amps
| HP | Voltage (V) | Phase | PF | Eff (%) | Current (A) |
|---|---|---|---|---|---|
| 5 | 230 | 1φ | 0.9 | 90 | 19.4 |
| 10 | 415 | 3φ | 0.85 | 92 | 16.6 |
| 50 | 460 | 3φ | 0.9 | 95 | 85.0 |
