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🏭 Industrial Electrical Conversion · Three-Phase & Single-Phase

11 kVA to Amps at 480V Three-Phase AC (US Industrial)

Exact current (Amps), real power (kW), apparent power (kVA), mechanical horsepower (HP), breaker rating, and conductor size for 11 kVA on a 480V Three-Phase AC (US Industrial) circuit.

Line Current (0.85 PF)13.23 AAt 1.0 PF: 13.23 A
Active / Apparent Power9.35 kW11.0 kVA · 5.79 kVAR
Recommended Breaker20 A (NEC)15 A (IEC Nominal)
Recommended Copper Wire14 AWGIEC Metric: 1.5 mm²

Engineering Breakdown for 11 kVA at 480V

Input Rating11 kVA (480V Three-Phase AC (US Industrial))
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)13.23 Amps
Amperage at 1.00 Power Factor (Resistive Load)13.23 Amps
Real Power (kW / Watts)9.35 kW (9,350 W)
Apparent Power (kVA) & Reactive Power (kVAR)11.0 kVA / 5.79 kVAR
Equivalent Mechanical Horsepower (HP)12.54 HP
NEC 125% Continuous Circuit Breaker20 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)14 AWG (NEC) / 1.5 mm² (IEC)

Frequently Asked Questions

How many amps is 11 kVA at 480V (3-Phase)?

At 480V Three-Phase AC (US Industrial), 11 kVA equals 13.23 Amps at an industrial power factor of 0.85 (or 13.23 Amps at unity power factor 1.0).

What size breaker and wire is needed for 11 kVA at 480V?

For 13.23A continuous load, NEC requires a 125% rated breaker of 20A with 14 AWG copper conductors, while IEC standard sizing uses a 15A breaker with 1.5 mm² copper cable.