108 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 108 kVA on a 208V Three-Phase AC circuit.
Line Current (0.85 PF)299.78 AAt 1.0 PF: 299.78 A
Active / Apparent Power91.8 kW108.0 kVA · 56.89 kVAR
Recommended Breaker400 A (NEC)300 A (IEC Nominal)
Recommended Copper Wire350 kcmilIEC Metric: 150 mm²
Engineering Breakdown for 108 kVA at 208V
| Input Rating | 108 kVA (208V Three-Phase AC) |
| Amperage at 0.85 Power Factor (Industrial Motor/Transformer) | 299.78 Amps |
| Amperage at 1.00 Power Factor (Resistive Load) | 299.78 Amps |
| Real Power (kW / Watts) | 91.8 kW (91,800 W) |
| Apparent Power (kVA) & Reactive Power (kVAR) | 108.0 kVA / 56.89 kVAR |
| Equivalent Mechanical Horsepower (HP) | 123.11 HP |
| NEC 125% Continuous Circuit Breaker | 400 A |
| Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop) | 350 kcmil (NEC) / 150 mm² (IEC) |
Frequently Asked Questions
How many amps is 108 kVA at 208V (3-Phase)?
At 208V Three-Phase AC, 108 kVA equals 299.78 Amps at an industrial power factor of 0.85 (or 299.78 Amps at unity power factor 1.0).
What size breaker and wire is needed for 108 kVA at 208V?
For 299.78A continuous load, NEC requires a 125% rated breaker of 400A with 350 kcmil copper conductors, while IEC standard sizing uses a 300A breaker with 150 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)108 kVA at 120V Single-Phase AC108 kVA at 208V Single-Phase AC108 kVA at 230V Single-Phase AC (IEC)108 kVA at 240V Single-Phase AC (NEC)108 kVA at 230V Three-Phase AC108 kVA at 400V Three-Phase AC (IEC Europe)108 kVA at 415V Three-Phase AC (UK / AU)108 kVA at 480V Three-Phase AC (US Industrial)108 kVA at 600V Three-Phase AC (Canada / Heavy)108 kVA at 24V DC Direct Current108 kVA at 48V DC Battery / Telecom Bus