492 Watts to Amps

492 watts is 4.1 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

492 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
41A 48.24A 27.85A
24V
DC, industrial control
20.5A 24.12A 13.92A
100V
Japan residential
4.92A 5.79A 3.34A
120V
US residential
4.1A 4.82A 2.78A
208V
US commercial three-phase
2.37A 2.78A 1.61A
220V
Legacy international / parts of Asia
2.24A 2.63A 1.52A
230V
UK / EU residential
2.14A 2.52A 1.45A
240V
US residential (dryer, range, HVAC)
2.05A 2.41A 1.39A
277V
US commercial lighting
1.78A 2.09A 1.21A
400V
UK / EU commercial three-phase
1.23A 1.45A 0.8355A
460V
US industrial motor (NEC 430.250 column)
1.07A 1.26A 0.7265A
480V
US industrial three-phase
1.03A 1.21A 0.6962A
575V
Canadian industrial three-phase
0.8557A 1.01A 0.5812A

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.