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

18.5 kW to Amps at 230V Three-Phase AC

Exact current (Amps), real power (kW), apparent power (kVA), mechanical horsepower (HP), breaker rating, and conductor size for 18.5 kW on a 230V Three-Phase AC circuit.

Line Current (0.85 PF)54.63 AAt 1.0 PF: 46.44 A
Active / Apparent Power18.5 kW21.76 kVA · 11.47 kVAR
Recommended Breaker70 A (NEC)60 A (IEC Nominal)
Recommended Copper Wire6 AWGIEC Metric: 10 mm²

Engineering Breakdown for 18.5 kW at 230V

Input Rating18.5 kW (230V Three-Phase AC)
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)54.63 Amps
Amperage at 1.00 Power Factor (Resistive Load)46.44 Amps
Real Power (kW / Watts)18.5 kW (18,500 W)
Apparent Power (kVA) & Reactive Power (kVAR)21.76 kVA / 11.47 kVAR
Equivalent Mechanical Horsepower (HP)24.81 HP
NEC 125% Continuous Circuit Breaker70 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)6 AWG (NEC) / 10 mm² (IEC)

Frequently Asked Questions

How many amps is 18.5 kW at 230V (3-Phase)?

At 230V Three-Phase AC, 18.5 kW equals 54.63 Amps at an industrial power factor of 0.85 (or 46.44 Amps at unity power factor 1.0).

What size breaker and wire is needed for 18.5 kW at 230V?

For 54.63A continuous load, NEC requires a 125% rated breaker of 70A with 6 AWG copper conductors, while IEC standard sizing uses a 60A breaker with 10 mm² copper cable.

Other Power Ratings & Voltages

5 kW at 230V (3P)10 kW at 230V (3P)15 kW at 230V (3P)20 kW at 230V (3P)25 kW at 230V (3P)30 kW at 230V (3P)45 kW at 230V (3P)50 kW at 230V (3P)75 kW at 230V (3P)100 kW at 230V (3P)150 kW at 230V (3P)200 kW at 230V (3P)250 kW at 230V (3P)500 kW at 230V (3P)18.5 kW at 120V Single-Phase AC18.5 kW at 208V Single-Phase AC18.5 kW at 230V Single-Phase AC (IEC)18.5 kW at 240V Single-Phase AC (NEC)18.5 kW at 208V Three-Phase AC18.5 kW at 400V Three-Phase AC (IEC Europe)18.5 kW at 415V Three-Phase AC (UK / AU)18.5 kW at 480V Three-Phase AC (US Industrial)18.5 kW at 600V Three-Phase AC (Canada / Heavy)18.5 kW at 24V DC Direct Current18.5 kW at 48V DC Battery / Telecom Bus