502 Watts to Amps

502 watts is 4.18 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

502 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
41.83A 49.22A 28.41A
24V
DC, industrial control
20.92A 24.61A 14.21A
100V
Japan residential
5.02A 5.91A 3.41A
120V
US residential
4.18A 4.92A 2.84A
208V
US commercial three-phase
2.41A 2.84A 1.64A
220V
Legacy international / parts of Asia
2.28A 2.68A 1.55A
230V
UK / EU residential
2.18A 2.57A 1.48A
240V
US residential (dryer, range, HVAC)
2.09A 2.46A 1.42A
277V
US commercial lighting
1.81A 2.13A 1.23A
400V
UK / EU commercial three-phase
1.26A 1.48A 0.8524A
460V
US industrial motor (NEC 430.250 column)
1.09A 1.28A 0.7413A
480V
US industrial three-phase
1.05A 1.23A 0.7104A
575V
Canadian industrial three-phase
0.873A 1.03A 0.593A

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.