Formula and meaning
Convert charging power into current per phase, or calculate power from current, voltage, phase count, and power factor.
Single phase: P = U · I · cos φ · Three phase: P = √3 · U · I · cos φ
E-mobility · AC power
Wallbox power and current calculator
Convert single- and three-phase AC charging power and current using voltage and power factor.
EVAC/DC
02
Results
E = P · t
Set the inputs and run the calculation.
Context
At 400 V, three phases, and cos φ = 1, 11 kW is about 15.88 A per phase and 22 kW is about 31.75 A.
The model considers a balanced AC connection with sinusoidal quantities. The calculated current is not an automatic recommendation for protective-device rating or conductor cross-section. Installation design is separate.
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