Here you have the possibility to calculate the required cross-section of copper connection
cables in the DC network. Normal DC loads such as DC motors are connected here.
Attention:
The cable calculator offered here only provides a rough estimate of the cross-section!
For Example:
A 24 volt DC motor has a rated current of 2.47 amps, a cable length of 28 m,
and the voltage drop of the cable is 2%.
Which cable cross-section results from these specifications?
A = (2 x I x L) / (K x Δv x V)
A = (2 x 2.47 A x 28 m) / (56 x 0.02 x 24 V)
A = (138.32) / (26.88)
A = 5.15mm²
The next larger suitable cross-section is 6 mm²!
Measuring Units:
Cross section A = mm²
Voltage V = Volt [V]
Current I = Ampere [A]
Kappa copper K = 56 [m / Ω x mm²]
Delta V Δv = %
