⚡ Cu ρ (75°C): 0.0214 Ω·mm²/m 🔌 NEC / IEC Standards: NFPA 70 & IEC 60364 🇺🇸 US Grid Avg: $0.175/kWh 🇩🇪 DE Grid Avg: €0.345/kWh 🇸🇪 SE Elpris: 1.54 SEK/kWh 🇳🇴 NO Strøm: 1.17 NOK/kWh 🔩 Copper Ref: $9,650/t (2026-10-25)
🏭 Industrial Electrical Conversion · Three-Phase & Single-Phase

50 kW to Amps at 230V Single-Phase AC (IEC)

Exact current (Amps), real power (kW), apparent power (kVA), mechanical horsepower (HP), breaker rating, and conductor size for 50 kW on a 230V Single-Phase AC (IEC) circuit.

Line Current (0.85 PF)255.75 AAt 1.0 PF: 217.39 A
Active / Apparent Power50.0 kW58.82 kVA · 30.99 kVAR
Recommended Breaker350 A (NEC)300 A (IEC Nominal)
Recommended Copper Wire300 kcmilIEC Metric: 120 mm²

Engineering Breakdown for 50 kW at 230V

Input Rating50 kW (230V Single-Phase AC (IEC))
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)255.75 Amps
Amperage at 1.00 Power Factor (Resistive Load)217.39 Amps
Real Power (kW / Watts)50.0 kW (50,000 W)
Apparent Power (kVA) & Reactive Power (kVAR)58.82 kVA / 30.99 kVAR
Equivalent Mechanical Horsepower (HP)67.05 HP
NEC 125% Continuous Circuit Breaker350 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)300 kcmil (NEC) / 120 mm² (IEC)

Frequently Asked Questions

How many amps is 50 kW at 230V (1-Phase)?

At 230V Single-Phase AC (IEC), 50 kW equals 255.75 Amps at an industrial power factor of 0.85 (or 217.39 Amps at unity power factor 1.0).

What size breaker and wire is needed for 50 kW at 230V?

For 255.75A continuous load, NEC requires a 125% rated breaker of 350A with 300 kcmil copper conductors, while IEC standard sizing uses a 300A breaker with 120 mm² copper cable.

Other Power Ratings & Voltages

5 kW at 230V (1P)10 kW at 230V (1P)15 kW at 230V (1P)20 kW at 230V (1P)25 kW at 230V (1P)30 kW at 230V (1P)45 kW at 230V (1P)75 kW at 230V (1P)100 kW at 230V (1P)150 kW at 230V (1P)200 kW at 230V (1P)250 kW at 230V (1P)500 kW at 230V (1P)50 kW at 120V Single-Phase AC50 kW at 208V Single-Phase AC50 kW at 240V Single-Phase AC (NEC)50 kW at 208V Three-Phase AC50 kW at 230V Three-Phase AC50 kW at 400V Three-Phase AC (IEC Europe)50 kW at 415V Three-Phase AC (UK / AU)50 kW at 480V Three-Phase AC (US Industrial)50 kW at 600V Three-Phase AC (Canada / Heavy)50 kW at 24V DC Direct Current50 kW at 48V DC Battery / Telecom Bus