DC: P (W) = A × 24 V. AC, Single Phase: P (W) = A × PF × 24 V. AC, Three Phase, Line to Line Voltage: P (W) = A × √ 3 × PF × 24 V. AC, Three Phase, Line to Neutral Voltage: P (W) = A × 3 × PF × 24 V. Similar calculations include, for example: 29 volts to watts. 30 volts to watts. 31 volts to watts. For further information regarding ...