18.5 kVA to Amps at 48V DC Battery / Telecom Bus
Exact current (Amps), real power (kW), apparent power (kVA), mechanical horsepower (HP), breaker rating, and conductor size for 18.5 kVA on a 48V DC Battery / Telecom Bus circuit.
Line Current (0.85 PF)385.42 AAt 1.0 PF: 385.42 A
Active / Apparent Power18.5 kW18.5 kVA · 0.0 kVAR
Recommended Breaker500 A (NEC)400 A (IEC Nominal)
Recommended Copper Wire600 kcmilIEC Metric: 240 mm²
Engineering Breakdown for 18.5 kVA at 48V
| Input Rating | 18.5 kVA (48V DC Battery / Telecom Bus) |
| Amperage at 0.85 Power Factor (Industrial Motor/Transformer) | 385.42 Amps |
| Amperage at 1.00 Power Factor (Resistive Load) | 385.42 Amps |
| Real Power (kW / Watts) | 18.5 kW (18,500 W) |
| Apparent Power (kVA) & Reactive Power (kVAR) | 18.5 kVA / 0.0 kVAR |
| Equivalent Mechanical Horsepower (HP) | 24.81 HP |
| NEC 125% Continuous Circuit Breaker | 500 A |
| Minimum Copper Conductor (100 ft / 30 m, ≤3% Drop) | 600 kcmil (NEC) / 240 mm² (IEC) |
Frequently Asked Questions
How many amps is 18.5 kVA at 48V (1-Phase)?
At 48V DC Battery / Telecom Bus, 18.5 kVA equals 385.42 Amps at an industrial power factor of 1.0 (or 385.42 Amps at unity power factor 1.0).
What size breaker and wire is needed for 18.5 kVA at 48V?
For 385.42A continuous load, NEC requires a 125% rated breaker of 500A with 600 kcmil copper conductors, while IEC standard sizing uses a 400A breaker with 240 mm² copper cable.
Other Power Ratings & Voltages
5 kVA at 48V (1P)10 kVA at 48V (1P)15 kVA at 48V (1P)20 kVA at 48V (1P)25 kVA at 48V (1P)30 kVA at 48V (1P)45 kVA at 48V (1P)50 kVA at 48V (1P)75 kVA at 48V (1P)100 kVA at 48V (1P)150 kVA at 48V (1P)200 kVA at 48V (1P)250 kVA at 48V (1P)500 kVA at 48V (1P)18.5 kVA at 120V Single-Phase AC18.5 kVA at 208V Single-Phase AC18.5 kVA at 230V Single-Phase AC (IEC)18.5 kVA at 240V Single-Phase AC (NEC)18.5 kVA at 208V Three-Phase AC18.5 kVA at 230V Three-Phase AC18.5 kVA at 400V Three-Phase AC (IEC Europe)18.5 kVA at 415V Three-Phase AC (UK / AU)18.5 kVA at 480V Three-Phase AC (US Industrial)18.5 kVA at 600V Three-Phase AC (Canada / Heavy)18.5 kVA at 24V DC Direct Current