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

80 kW to Amps at 208V Single-Phase AC

Exact current (Amps), real power (kW), apparent power (kVA), mechanical horsepower (HP), breaker rating, and conductor size for 80 kW on a 208V Single-Phase AC circuit.

Line Current (0.85 PF)452.49 AAt 1.0 PF: 384.62 A
Active / Apparent Power80.0 kW94.12 kVA · 49.58 kVAR
Recommended Breaker600 A (NEC)500 A (IEC Nominal)
Recommended Copper Wire750 kcmilIEC Metric: 300 mm²

Engineering Breakdown for 80 kW at 208V

Input Rating80 kW (208V Single-Phase AC)
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)452.49 Amps
Amperage at 1.00 Power Factor (Resistive Load)384.62 Amps
Real Power (kW / Watts)80.0 kW (80,000 W)
Apparent Power (kVA) & Reactive Power (kVAR)94.12 kVA / 49.58 kVAR
Equivalent Mechanical Horsepower (HP)107.28 HP
NEC 125% Continuous Circuit Breaker600 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)750 kcmil (NEC) / 300 mm² (IEC)

Frequently Asked Questions

How many amps is 80 kW at 208V (1-Phase)?

At 208V Single-Phase AC, 80 kW equals 452.49 Amps at an industrial power factor of 0.85 (or 384.62 Amps at unity power factor 1.0).

What size breaker and wire is needed for 80 kW at 208V?

For 452.49A continuous load, NEC requires a 125% rated breaker of 600A with 750 kcmil copper conductors, while IEC standard sizing uses a 500A breaker with 300 mm² copper cable.