GS / CALCULATOR
Current calculator
Find single or three phase load current from power, voltage and power factor.
Start calculating
GS / INPUTS
Estimate feeder current
Specify phase configuration, real power, voltage and power factor. Use line-to-line voltage for a three-phase supply.
Inputs
Calculation method
1φ: I = 1000 × kW ÷ (V × PF) · 3φ: I = 1000 × kW ÷ (√3 × VLL × PF)
Interpreting the result
The three-phase calculation assumes balanced loading. Cable and protection selection also requires imbalance, installation conditions and equipment data.
The result is an initial estimate based on your inputs. Check equipment nameplates, manufacturer data, installation conditions and project requirements before final selection.