⚡ Cu ρ (75°C): 0.0214 Ω·mm²/m 🔌 NEC / IEC Standards: NFPA 70 & IEC 60364 🇺🇸 US Grid Avg: $0.175/kWh 🇩🇪 DE Grid Avg: €0.345/kWh 🇸🇪 SE Elpris: 1.54 SEK/kWh 🇳🇴 NO Strøm: 1.17 NOK/kWh 🔩 Copper Ref: $9,650/t (2026-10-25)
🏭 Industrial Electrical Conversion · Three-Phase & Single-Phase

126 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 126 kVA on a 208V Three-Phase AC circuit.

Line Current (0.85 PF)349.74 AAt 1.0 PF: 349.74 A
Active / Apparent Power107.1 kW126.0 kVA · 66.37 kVAR
Recommended Breaker450 A (NEC)350 A (IEC Nominal)
Recommended Copper Wire500 kcmilIEC Metric: 185 mm²

Engineering Breakdown for 126 kVA at 208V

Input Rating126 kVA (208V Three-Phase AC)
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)349.74 Amps
Amperage at 1.00 Power Factor (Resistive Load)349.74 Amps
Real Power (kW / Watts)107.1 kW (107,100 W)
Apparent Power (kVA) & Reactive Power (kVAR)126.0 kVA / 66.37 kVAR
Equivalent Mechanical Horsepower (HP)143.62 HP
NEC 125% Continuous Circuit Breaker450 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)500 kcmil (NEC) / 185 mm² (IEC)

Frequently Asked Questions

How many amps is 126 kVA at 208V (3-Phase)?

At 208V Three-Phase AC, 126 kVA equals 349.74 Amps at an industrial power factor of 0.85 (or 349.74 Amps at unity power factor 1.0).

What size breaker and wire is needed for 126 kVA at 208V?

For 349.74A continuous load, NEC requires a 125% rated breaker of 450A with 500 kcmil copper conductors, while IEC standard sizing uses a 350A breaker with 185 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)126 kVA at 120V Single-Phase AC126 kVA at 208V Single-Phase AC126 kVA at 230V Single-Phase AC (IEC)126 kVA at 240V Single-Phase AC (NEC)126 kVA at 230V Three-Phase AC126 kVA at 400V Three-Phase AC (IEC Europe)126 kVA at 415V Three-Phase AC (UK / AU)126 kVA at 480V Three-Phase AC (US Industrial)126 kVA at 600V Three-Phase AC (Canada / Heavy)126 kVA at 24V DC Direct Current126 kVA at 48V DC Battery / Telecom Bus