20.4 kW to Amps

20.4 kilowatts is 85 amps at 240V (DC). The exact amperage depends on your voltage and whether the circuit is single-phase or three-phase.

20.4 kW to Amps at Every Voltage

VoltageDCAC 1-Phase (PF 0.85)AC 3-Phase (PF 0.85)
12V
DC, automotive, solar
1,700A 2,000A 1,154.7A
24V
DC, industrial control
850A 1,000A 577.35A
100V
Japan residential
204A 240A 138.56A
120V
US residential
170A 200A 115.47A
208V
US commercial three-phase
98.08A 115.38A 66.62A
220V
Legacy international / parts of Asia
92.73A 109.09A 62.98A
230V
UK / EU residential
88.7A 104.35A 60.25A
240V
US residential (dryer, range, HVAC)
85A 100A 57.74A
277V
US commercial lighting
73.65A 86.64A 50.02A
400V
UK / EU commercial three-phase
51A 60A 34.64A
460V
US industrial motor (NEC 430.250 column)
44.35A 52.17A 30.12A
480V
US industrial three-phase
42.5A 50A 28.87A
575V
Canadian industrial three-phase
35.48A 41.74A 24.1A

Other kW Values

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.