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

5.5 kW to Amps at 208V Three-Phase AC

Exact current (Amps), real power (kW), apparent power (kVA), mechanical horsepower (HP), breaker rating, and conductor size for 5.5 kW on a 208V Three-Phase AC circuit.

Line Current (0.85 PF)17.96 AAt 1.0 PF: 15.27 A
Active / Apparent Power5.5 kW6.47 kVA · 3.41 kVAR
Recommended Breaker25 A (NEC)20 A (IEC Nominal)
Recommended Copper Wire12 AWGIEC Metric: 2.5 mm²

Engineering Breakdown for 5.5 kW at 208V

Input Rating5.5 kW (208V Three-Phase AC)
Amperage at 0.85 Power Factor (Industrial Motor/Transformer)17.96 Amps
Amperage at 1.00 Power Factor (Resistive Load)15.27 Amps
Real Power (kW / Watts)5.5 kW (5,500 W)
Apparent Power (kVA) & Reactive Power (kVAR)6.47 kVA / 3.41 kVAR
Equivalent Mechanical Horsepower (HP)7.38 HP
NEC 125% Continuous Circuit Breaker25 A
Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop)12 AWG (NEC) / 2.5 mm² (IEC)

Frequently Asked Questions

How many amps is 5.5 kW at 208V (3-Phase)?

At 208V Three-Phase AC, 5.5 kW equals 17.96 Amps at an industrial power factor of 0.85 (or 15.27 Amps at unity power factor 1.0).

What size breaker and wire is needed for 5.5 kW at 208V?

For 17.96A continuous load, NEC requires a 125% rated breaker of 25A with 12 AWG copper conductors, while IEC standard sizing uses a 20A breaker with 2.5 mm² copper cable.

Other Power Ratings & Voltages

5 kW at 208V (3P)10 kW at 208V (3P)15 kW at 208V (3P)20 kW at 208V (3P)25 kW at 208V (3P)30 kW at 208V (3P)45 kW at 208V (3P)50 kW at 208V (3P)75 kW at 208V (3P)100 kW at 208V (3P)150 kW at 208V (3P)200 kW at 208V (3P)250 kW at 208V (3P)500 kW at 208V (3P)5.5 kW at 120V Single-Phase AC5.5 kW at 208V Single-Phase AC5.5 kW at 230V Single-Phase AC (IEC)5.5 kW at 240V Single-Phase AC (NEC)5.5 kW at 230V Three-Phase AC5.5 kW at 400V Three-Phase AC (IEC Europe)5.5 kW at 415V Three-Phase AC (UK / AU)5.5 kW at 480V Three-Phase AC (US Industrial)5.5 kW at 600V Three-Phase AC (Canada / Heavy)5.5 kW at 24V DC Direct Current5.5 kW at 48V DC Battery / Telecom Bus