Cable cross-section calculator
For the calculation, a constant voltage drop of 1.5% for 230 V and 2% for 400 V with three phases was assumed, along with a conductor operating temperature ranging from -25°C to +60°C.
Common conductor cross-sections are: 1 mm², 1.5 mm², 2.5 mm², 4 mm², 6 mm², 10 mm², 16 mm², 25 mm².