menu Log in Contact About Updates Prices FAQ Home

Full Load Current Calculator with Equations

The full load current calculator calculates the full load current for 1-phase AC, 3-phase AC and DC loads in kW, kVA or hp. Includes step-by-step equations.

Voltage (V)

Load rating (kW, kVA or hp)
   pf

See Also

Full Load Current Calculator Parameters

Full load current calculation for a 3-phase AC supply:

The full load current for a 3-phase load in kW is calculated as:

\(I=\displaystyle\frac{1000 \cdot S_{kW}} {\sqrt{3} \cdot V_{LL} \cdot \cos{\phi} }\)

Where:

The full load current for a 3-phase load in kVA is calculated as:

\(I=\displaystyle\frac{1000 \cdot S_{kVA}} {\sqrt{3} \cdot V_{LL} }\)

The full load current for a 3-phase load in hp is calculated as:

\(I=\displaystyle\frac{745.7 \cdot S_{hp}} {\sqrt{3} \cdot V_{LL} \cdot \cos{\phi} }\)

Full load current calculation for a 1-phase AC supply:

The full load current for a 1-phase load in kW is calculated as:

\(I=\displaystyle\frac{1000 \cdot S_{kW}} {V_{LN} \cdot \cos{\phi} }\)

The full load current for a 1-phase load in kVA is calculated as:

\(I=\displaystyle\frac{1000 \cdot S_{kVA}} {V_{LN} }\)

The full load current for a 1-phase load in hp is calculated as:

\(I=\displaystyle\frac{745.7 \cdot S_{hp}} {V_{LN} \cdot \cos{\phi} }\)

Full load current calculation for a DC supply:

The full load current for a DC load in kW is calculated as:

\(I=\displaystyle\frac{1000 \cdot S_{kW}} {V_{LN} }\)

The full load current for a DC load in kVA is calculated as:

\(I=\displaystyle\frac{1000 \cdot S_{kVA}} {V_{LN} }\)

The full load current for a DC load in hp is calculated as:

\(I=\displaystyle\frac{745.7 \cdot S_{hp}} {V_{LN} }\)