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

1125 kVA 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 1125 kVA on a 120V Single-Phase AC circuit.

Line Current (0.85 PF)9375.0 AAt 1.0 PF: 9375.0 A
Active / Apparent Power956.25 kW1125.0 kVA · 592.63 kVAR
Recommended Breaker11800 A (NEC)9400 A (IEC Nominal)
Recommended Copper Wire18× 1000 kcmil (Parallel)IEC Metric: 17× 400 mm²

Engineering Breakdown for 1125 kVA at 120V

Input Rating1125 kVA (120V Single-Phase AC)
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)9375.0 Amps
Amperage at 1.00 Power Factor (Resistive Load)9375.0 Amps
Real Power (kW / Watts)956.25 kW (956,250 W)
Apparent Power (kVA) & Reactive Power (kVAR)1125.0 kVA / 592.63 kVAR
Equivalent Mechanical Horsepower (HP)1282.35 HP
NEC 125% Continuous Circuit Breaker11800 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)18× 1000 kcmil (Parallel) (NEC) / 17× 400 mm² (IEC)

Frequently Asked Questions

How many amps is 1125 kVA at 120V (1-Phase)?

At 120V Single-Phase AC, 1125 kVA equals 9375.0 Amps at an industrial power factor of 0.85 (or 9375.0 Amps at unity power factor 1.0).

What size breaker and wire is needed for 1125 kVA at 120V?

For 9375.0A continuous load, NEC requires a 125% rated breaker of 11800A with 18× 1000 kcmil (Parallel) copper conductors, while IEC standard sizing uses a 9400A breaker with 17× 400 mm² copper cable.

Other Power Ratings & Voltages

5 kVA at 120V (1P)10 kVA at 120V (1P)15 kVA at 120V (1P)20 kVA at 120V (1P)25 kVA at 120V (1P)30 kVA at 120V (1P)45 kVA at 120V (1P)50 kVA at 120V (1P)75 kVA at 120V (1P)100 kVA at 120V (1P)150 kVA at 120V (1P)200 kVA at 120V (1P)250 kVA at 120V (1P)500 kVA at 120V (1P)1125 kVA at 208V Single-Phase AC1125 kVA at 230V Single-Phase AC (IEC)1125 kVA at 240V Single-Phase AC (NEC)1125 kVA at 208V Three-Phase AC1125 kVA at 230V Three-Phase AC1125 kVA at 400V Three-Phase AC (IEC Europe)1125 kVA at 415V Three-Phase AC (UK / AU)1125 kVA at 480V Three-Phase AC (US Industrial)1125 kVA at 600V Three-Phase AC (Canada / Heavy)1125 kVA at 24V DC Direct Current1125 kVA at 48V DC Battery / Telecom Bus