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

1150 kW to Amps at 120V Single-Phase AC

Exact current (Amps), real power (kW), apparent power (kVA), mechanical horsepower (HP), breaker rating, and conductor size for 1150 kW on a 120V Single-Phase AC circuit.

Line Current (0.85 PF)11274.51 AAt 1.0 PF: 9583.33 A
Active / Apparent Power1150.0 kW1352.94 kVA · 712.71 kVAR
Recommended Breaker14100 A (NEC)11300 A (IEC Nominal)
Recommended Copper Wire21× 1000 kcmil (Parallel)IEC Metric: 20× 400 mm²

Engineering Breakdown for 1150 kW at 120V

Input Rating1150 kW (120V Single-Phase AC)
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)11274.51 Amps
Amperage at 1.00 Power Factor (Resistive Load)9583.33 Amps
Real Power (kW / Watts)1150.0 kW (1,150,000 W)
Apparent Power (kVA) & Reactive Power (kVAR)1352.94 kVA / 712.71 kVAR
Equivalent Mechanical Horsepower (HP)1542.18 HP
NEC 125% Continuous Circuit Breaker14100 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)21× 1000 kcmil (Parallel) (NEC) / 20× 400 mm² (IEC)

Frequently Asked Questions

How many amps is 1150 kW at 120V (1-Phase)?

At 120V Single-Phase AC, 1150 kW equals 11274.51 Amps at an industrial power factor of 0.85 (or 9583.33 Amps at unity power factor 1.0).

What size breaker and wire is needed for 1150 kW at 120V?

For 11274.51A continuous load, NEC requires a 125% rated breaker of 14100A with 21× 1000 kcmil (Parallel) copper conductors, while IEC standard sizing uses a 11300A breaker with 20× 400 mm² copper cable.

Other Power Ratings & Voltages

5 kW at 120V (1P)10 kW at 120V (1P)15 kW at 120V (1P)20 kW at 120V (1P)25 kW at 120V (1P)30 kW at 120V (1P)45 kW at 120V (1P)50 kW at 120V (1P)75 kW at 120V (1P)100 kW at 120V (1P)150 kW at 120V (1P)200 kW at 120V (1P)250 kW at 120V (1P)500 kW at 120V (1P)1150 kW at 208V Single-Phase AC1150 kW at 230V Single-Phase AC (IEC)1150 kW at 240V Single-Phase AC (NEC)1150 kW at 208V Three-Phase AC1150 kW at 230V Three-Phase AC1150 kW at 400V Three-Phase AC (IEC Europe)1150 kW at 415V Three-Phase AC (UK / AU)1150 kW at 480V Three-Phase AC (US Industrial)1150 kW at 600V Three-Phase AC (Canada / Heavy)1150 kW at 24V DC Direct Current1150 kW at 48V DC Battery / Telecom Bus