512 Watts to Amps

512 watts is 4.27 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

512 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
42.67A 50.2A 28.98A
24V
DC, industrial control
21.33A 25.1A 14.49A
100V
Japan residential
5.12A 6.02A 3.48A
120V
US residential
4.27A 5.02A 2.9A
208V
US commercial three-phase
2.46A 2.9A 1.67A
220V
Legacy international / parts of Asia
2.33A 2.74A 1.58A
230V
UK / EU residential
2.23A 2.62A 1.51A
240V
US residential (dryer, range, HVAC)
2.13A 2.51A 1.45A
277V
US commercial lighting
1.85A 2.17A 1.26A
400V
UK / EU commercial three-phase
1.28A 1.51A 0.8694A
460V
US industrial motor (NEC 430.250 column)
1.11A 1.31A 0.756A
480V
US industrial three-phase
1.07A 1.25A 0.7245A
575V
Canadian industrial three-phase
0.8904A 1.05A 0.6048A

Other Wattages

This calculator provides estimates for reference purposes only. Always consult a licensed electrician and verify compliance with the National Electrical Code (NEC) and local electrical codes before performing any electrical work.