340 Watts to Amps

340 watts is 2.83 amps at 120V (DC). The exact amperage depends on your voltage and whether the circuit is DC or AC.

340 Watts to Amps at Every Voltage

VoltageDCAC (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
28.33A 33.33A 19.25A
24V
DC, industrial control
14.17A 16.67A 9.62A
100V
Japan residential
3.4A 4A 2.31A
120V
US residential
2.83A 3.33A 1.92A
208V
US commercial three-phase
1.63A 1.92A 1.11A
220V
Legacy international / parts of Asia
1.55A 1.82A 1.05A
230V
UK / EU residential
1.48A 1.74A 1A
240V
US residential (dryer, range, HVAC)
1.42A 1.67A 0.9623A
277V
US commercial lighting
1.23A 1.44A 0.8337A
400V
UK / EU commercial three-phase
0.85A 1A 0.5774A
460V
US industrial motor (NEC 430.250 column)
0.7391A 0.8696A 0.502A
480V
US industrial three-phase
0.7083A 0.8333A 0.4811A
575V
Canadian industrial three-phase
0.5913A 0.6957A 0.4016A

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.