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

38 kW to Amps at 415V Three-Phase AC (UK / AU)

Exact current (Amps), real power (kW), apparent power (kVA), mechanical horsepower (HP), breaker rating, and conductor size for 38 kW on a 415V Three-Phase AC (UK / AU) circuit.

Line Current (0.85 PF)62.2 AAt 1.0 PF: 52.87 A
Active / Apparent Power38.0 kW44.71 kVA · 23.55 kVAR
Recommended Breaker80 A (NEC)63 A (IEC Nominal)
Recommended Copper Wire6 AWGIEC Metric: 16 mm²

Engineering Breakdown for 38 kW at 415V

Input Rating38 kW (415V Three-Phase AC (UK / AU))
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)62.2 Amps
Amperage at 1.00 Power Factor (Resistive Load)52.87 Amps
Real Power (kW / Watts)38.0 kW (38,000 W)
Apparent Power (kVA) & Reactive Power (kVAR)44.71 kVA / 23.55 kVAR
Equivalent Mechanical Horsepower (HP)50.96 HP
NEC 125% Continuous Circuit Breaker80 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)6 AWG (NEC) / 16 mm² (IEC)

Frequently Asked Questions

How many amps is 38 kW at 415V (3-Phase)?

At 415V Three-Phase AC (UK / AU), 38 kW equals 62.2 Amps at an industrial power factor of 0.85 (or 52.87 Amps at unity power factor 1.0).

What size breaker and wire is needed for 38 kW at 415V?

For 62.2A continuous load, NEC requires a 125% rated breaker of 80A with 6 AWG copper conductors, while IEC standard sizing uses a 63A breaker with 16 mm² copper cable.