5 kW to Amps — How Many Amps Is 5 kW?
5 kW equals 20.83 amps at 240V (single phase) or 12.03 amps at 240V 3-phase. Common 5kW loads: Electric dryer, large AC unit, solar system.
5 kW to Amps
20.83 A
at 240V single phase
5 kW Amps at Every Voltage
| Voltage | 1-Phase | 3-Phase |
|---|---|---|
| 120V | 41.67A | 24.06A |
| 208V | 24.04A | 13.88A |
| 240V | 20.83A | 12.03A |
| 277V | 18.05A | 10.42A |
| 480V | 10.42A | 6.01A |
The Formula
Single Phase: Amps = (kW × 1000) ÷ Volts. For 5 kW at 240V: (5 × 1000) ÷ 240 = 20.83A.
Three Phase: Amps = (kW × 1000) ÷ (Volts × 1.732). For 5 kW at 240V 3φ: (5 × 1000) ÷ (240 × 1.732) = 12.03A.
Wire and Breaker for 5 kW
At 240V single-phase (20.8A), recommended: 10 AWG copper with a 30A breaker. Use our Wire Size Calculator for exact sizing.
Disclaimer: Calculations for reference. Consult a licensed electrician.