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

38 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 38 kW on a 208V Single-Phase AC circuit.

Line Current (0.85 PF)214.93 AAt 1.0 PF: 182.69 A
Active / Apparent Power38.0 kW44.71 kVA · 23.55 kVAR
Recommended Breaker300 A (NEC)225 A (IEC Nominal)
Recommended Copper Wire4/0 AWGIEC Metric: 95 mm²

Engineering Breakdown for 38 kW at 208V

Input Rating38 kW (208V Single-Phase AC)
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)214.93 Amps
Amperage at 1.00 Power Factor (Resistive Load)182.69 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 Breaker300 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)4/0 AWG (NEC) / 95 mm² (IEC)

Frequently Asked Questions

How many amps is 38 kW at 208V (1-Phase)?

At 208V Single-Phase AC, 38 kW equals 214.93 Amps at an industrial power factor of 0.85 (or 182.69 Amps at unity power factor 1.0).

What size breaker and wire is needed for 38 kW at 208V?

For 214.93A continuous load, NEC requires a 125% rated breaker of 300A with 4/0 AWG copper conductors, while IEC standard sizing uses a 225A breaker with 95 mm² copper cable.