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

875 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 875 kVA on a 480V Three-Phase AC (US Industrial) circuit.

Line Current (0.85 PF)1052.46 AAt 1.0 PF: 1052.46 A
Active / Apparent Power743.75 kW875.0 kVA · 460.93 kVAR
Recommended Breaker1600 A (NEC)1200 A (IEC Nominal)
Recommended Copper Wire2× 1000 kcmil (Parallel)IEC Metric: 2× 400 mm²

Engineering Breakdown for 875 kVA at 480V

Input Rating875 kVA (480V Three-Phase AC (US Industrial))
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)1052.46 Amps
Amperage at 1.00 Power Factor (Resistive Load)1052.46 Amps
Real Power (kW / Watts)743.75 kW (743,750 W)
Apparent Power (kVA) & Reactive Power (kVAR)875.0 kVA / 460.93 kVAR
Equivalent Mechanical Horsepower (HP)997.39 HP
NEC 125% Continuous Circuit Breaker1600 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)2× 1000 kcmil (Parallel) (NEC) / 2× 400 mm² (IEC)

Frequently Asked Questions

How many amps is 875 kVA at 480V (3-Phase)?

At 480V Three-Phase AC (US Industrial), 875 kVA equals 1052.46 Amps at an industrial power factor of 0.85 (or 1052.46 Amps at unity power factor 1.0).

What size breaker and wire is needed for 875 kVA at 480V?

For 1052.46A continuous load, NEC requires a 125% rated breaker of 1600A with 2× 1000 kcmil (Parallel) copper conductors, while IEC standard sizing uses a 1200A breaker with 2× 400 mm² copper cable.