142 kVA to Amps at 208V Three-Phase AC
Exact current (Amps), real power (kW), apparent power (kVA), mechanical horsepower (HP), breaker rating, and conductor size for 142 kVA on a 208V Three-Phase AC circuit.
Line Current (0.85 PF)394.15 AAt 1.0 PF: 394.15 A
Active / Apparent Power120.7 kW142.0 kVA · 74.8 kVAR
Recommended Breaker500 A (NEC)400 A (IEC Nominal)
Recommended Copper Wire600 kcmilIEC Metric: 240 mm²
Engineering Breakdown for 142 kVA at 208V
| Input Rating | 142 kVA (208V Three-Phase AC) |
| Amperage at 0.85 Power Factor (Industrial Motor/Transformer) | 394.15 Amps |
| Amperage at 1.00 Power Factor (Resistive Load) | 394.15 Amps |
| Real Power (kW / Watts) | 120.7 kW (120,700 W) |
| Apparent Power (kVA) & Reactive Power (kVAR) | 142.0 kVA / 74.8 kVAR |
| Equivalent Mechanical Horsepower (HP) | 161.86 HP |
| NEC 125% Continuous Circuit Breaker | 500 A |
| Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop) | 600 kcmil (NEC) / 240 mm² (IEC) |
Frequently Asked Questions
How many amps is 142 kVA at 208V (3-Phase)?
At 208V Three-Phase AC, 142 kVA equals 394.15 Amps at an industrial power factor of 0.85 (or 394.15 Amps at unity power factor 1.0).
What size breaker and wire is needed for 142 kVA at 208V?
For 394.15A continuous load, NEC requires a 125% rated breaker of 500A with 600 kcmil copper conductors, while IEC standard sizing uses a 400A breaker with 240 mm² copper cable.
Other Power Ratings & Voltages
5 kVA at 208V (3P)10 kVA at 208V (3P)15 kVA at 208V (3P)20 kVA at 208V (3P)25 kVA at 208V (3P)30 kVA at 208V (3P)45 kVA at 208V (3P)50 kVA at 208V (3P)75 kVA at 208V (3P)100 kVA at 208V (3P)150 kVA at 208V (3P)200 kVA at 208V (3P)250 kVA at 208V (3P)500 kVA at 208V (3P)142 kVA at 120V Single-Phase AC142 kVA at 208V Single-Phase AC142 kVA at 230V Single-Phase AC (IEC)142 kVA at 240V Single-Phase AC (NEC)142 kVA at 230V Three-Phase AC142 kVA at 400V Three-Phase AC (IEC Europe)142 kVA at 415V Three-Phase AC (UK / AU)142 kVA at 480V Three-Phase AC (US Industrial)142 kVA at 600V Three-Phase AC (Canada / Heavy)142 kVA at 24V DC Direct Current142 kVA at 48V DC Battery / Telecom Bus