How much current can 1 square meter of copper wire carry?

How much current and power can 1 square meter of copper wire carry?

At an operating temperature of 30°C and under a continuous 90% load, the current-carrying capacity of the cable is as follows:

1 square mm – 9A

1.5 square meter of wire – 14A

2.5 square meter of wire – 26A

4 square meter of wire – 32A

6 square meter of wire – 47A

16 square meter of wire – 92A

25 square meter of wire – 120A

36 square meter of wire – 150A

How much current can 1 square meter of copper wire carry?

Converting current to power:

1A = 220W, 10A = 2200W, and so on.

The current carrying capacity of 1 square mm of wire is 9A, which is 220W x 9 = 1980W. Therefore, the power of 1 square meter of copper wire is 1.98kW.

1 square meter of wire can generally carry 9A of current. How many watts it can carry depends on the voltage used. The higher the voltage, the greater the wattage. Conversely, the lower the voltage, the lower the wattage. If it is 220V, 1 square meter of copper core wire can generally carry 1980 watts.


Post time: 2025-09-19