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Cable size calculator
Get an indicative conductor size from your load. Results update as you type.
Load (kW)
Voltage (V)
Supply
Three-phase
Single-phase
Power factor
Conductor
Copper
Aluminium
Derating factor
1.00 — single cable in air
0.90 — grouped, spaced
0.80 — grouped on tray
0.70 — buried / hot ambient