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

84 kW 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 84 kW on a 208V Three-Phase AC circuit.

Line Current (0.85 PF)274.31 AAt 1.0 PF: 233.16 A
Active / Apparent Power84.0 kW98.82 kVA · 52.06 kVAR
Recommended Breaker350 A (NEC)300 A (IEC Nominal)
Recommended Copper Wire300 kcmilIEC Metric: 150 mm²

Engineering Breakdown for 84 kW at 208V

Input Rating84 kW (208V Three-Phase AC)
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)274.31 Amps
Amperage at 1.00 Power Factor (Resistive Load)233.16 Amps
Real Power (kW / Watts)84.0 kW (84,000 W)
Apparent Power (kVA) & Reactive Power (kVAR)98.82 kVA / 52.06 kVAR
Equivalent Mechanical Horsepower (HP)112.65 HP
NEC 125% Continuous Circuit Breaker350 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)300 kcmil (NEC) / 150 mm² (IEC)

Frequently Asked Questions

How many amps is 84 kW at 208V (3-Phase)?

At 208V Three-Phase AC, 84 kW equals 274.31 Amps at an industrial power factor of 0.85 (or 233.16 Amps at unity power factor 1.0).

What size breaker and wire is needed for 84 kW at 208V?

For 274.31A continuous load, NEC requires a 125% rated breaker of 350A with 300 kcmil copper conductors, while IEC standard sizing uses a 300A breaker with 150 mm² copper cable.