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Cable Size

Determines the minimum cable size for copper and aluminium conductors based on source voltage, number of phases, load current, cable distance, and allowable voltage drop. Returns the recommended AWG or MCM wire size.

Inputs

Source Voltage(V)

Supply voltage — 120, 240, or 480 volts

Number of Phases (1 = single, 3 = three)

Enter 1 for single-phase or 3 for three-phase

Amperes(A)

Load current in amps

Distance

One-way cable run distance

Distance Unit Multiplier

Unit multiplier to convert distance to feet — mm: 10, cm: 1, dm: 0.1, m: 0.01, km: 0.00001, in: 0.3937007874016, ft: 0.03280839895013, yd: 0.01093613298338

Voltage Drop(V)

Maximum allowable voltage drop in volts

Results

Copper Wire SizeInvalid ResultMinimum recommended copper wire size (AWG or MCM)

Aluminium Wire SizeInvalid ResultMinimum recommended aluminium wire size (AWG or MCM)