Amps to kW 440V
Convert current to kW on a 440 V supply. The heat map shows how both current and power factor change the result.
Inputs
kW by current and power factor
How amps to kW 440V calculator works
The amps to kW 440V calculator converts current into kilowatts (kW) on a 440 V supply with 3 inputs: current, power factor and phase. The heat map shows kW for 7 currents across 8 power factors at 440 V.
P = √3 × I × 440 × PF / 1000100 A at 440 V three phase and PF 0.85 gives 64.78 kW. The same 100 A at PF 1 gives 76.21 kW.
Amps to kW 440V formula
The amps to kW 440V formula is P(kW) = √3 × I × 440 × PF / 1,000 for three phase. There are 2 formulas at 440 V: three phase and single phase.
Three phase 440 V
P = √3 × I × 440 × PF / 10001.732 × 100 A × 440 V × 0.85 / 1,000 = 64.78 kW
Single phase 440 V
P = I × 440 × PF / 100010 A × 440 V / 1,000 = 4.4 kW
kW per amp (3φ)
P per A = √3 × 440 × PF / 10001.732 × 440 V / 1,000 = 0.762 kW per A
440 V three phase at 60 hertz (Hz) is the main voltage on ships under the International Electrotechnical Commission (IEC) 60092 standard, and on oil platforms and older industrial plants.
Amps to kW 440V conversion chart
The amps to kW 440V conversion chart lists 12 currents from 5 A to 500 A at 440 V: three phase at power factor 1, 0.9, 0.85 and 0.8 and single phase at power factor 1.
| Amps | 440 V 3φPF 1 | 440 V 3φPF 0.9 | 440 V 3φPF 0.85 | 440 V 3φPF 0.8 | 440 V 1φPF 1 |
|---|---|---|---|---|---|
| 5 A | 3.81 | 3.43 | 3.24 | 3.05 | 2.2 |
| 10 A | 7.62 | 6.86 | 6.48 | 6.1 | 4.4 |
| 20 A | 15.24 | 13.72 | 12.96 | 12.19 | 8.8 |
| 30 A | 22.86 | 20.58 | 19.43 | 18.29 | 13.2 |
| 50 A | 38.11 | 34.29 | 32.39 | 30.48 | 22 |
| 75 A | 57.16 | 51.44 | 48.58 | 45.73 | 33 |
| 100 A | 76.21 | 68.59 | 64.78 | 60.97 | 44 |
| 150 A | 114.32 | 102.88 | 97.17 | 91.45 | 66 |
| 200 A | 152.42 | 137.18 | 129.56 | 121.94 | 88 |
| 300 A | 228.63 | 205.77 | 194.34 | 182.9 | 132 |
| 400 A | 304.84 | 274.36 | 259.11 | 243.87 | 176 |
| 500 A | 381.05 | 342.95 | 323.89 | 304.84 | 220 |
500 A at 440 V three phase delivers 381.05 kW at PF 1.
Amps to kW 440V Excel formula
The amps to kW 440V Excel formula is =SQRT(3)*A2*440*B2/1000 with amps in A2 and power factor in B2.
| A | B | C | D | E | |
|---|---|---|---|---|---|
| 1 | Amps | Volts | PF | kW | Formula in D |
| 2 | 100 | 440 | 0.85 | 64.78 | =ROUND(SQRT(3)*A2*B2*C2/1000,2) |
| 3 | 10 | 440 | 0.85 | 6.48 | =ROUND(SQRT(3)*A3*B3*C3/1000,2) |
| 4 | 10 | 440 | 1 | 4.4 | =ROUND(A4*B4*C4/1000,2) |
Row 4 is single phase. Change C to the nameplate power factor of each motor.
Amps to kW 440V equation
The amps to kW 440V equation is P = √3 × I × 440 × PF / 1,000 for a three-phase supply.
- P
- Total real power in kW
- I
- Line current in amperes (A)
- 440
- Line-to-line voltage (V)
- PF
- Power factor
Each amp at 440 V three phase and PF 1 adds 0.762 kW.
Amps to kW 440V FAQ
How many kW is 100 amps at 440V?
100 amps at 440V three phase is 76.21 kW at a power factor of 1 and 64.78 kW at 0.85.
How many kW is 1 amp at 440V?
1 amp at 440V is 0.762 kW three phase and 0.44 kW single phase, at a power factor of 1.
How many kW is 10 amps at 440V?
10 amps at 440V is 7.62 kW three phase and 4.4 kW single phase, at a power factor of 1.
Where is 440V used?
440V is used on ships, offshore oil platforms and industrial plants, mostly as three phase at 60 Hz.