DC voltage drop & wire size calculator (mm²) – VETUS BATC
This calculator is intended for DC cable runs and aligns with VETUS cable selection logic for DC tunnel thrusters.
For BOW PRO / Rimdrive (controller-driven systems), follow the official VETUS selection tables.
Tip: decimal comma is allowed (e.g. 12,5).
5% corresponds to VETUS DC tunnel thruster cable selection tables.
Marine installations typically use copper.
The calculator uses round-trip length (×2).
BATC sizes used:
6, 10, 35, 50, 70, 95, 120 mm²
If required size exceeds 120 mm², the tool will recommend two parallel BATC cables (smallest suitable pair).
6, 10, 35, 50, 70, 95, 120 mm²
If required size exceeds 120 mm², the tool will recommend two parallel BATC cables (smallest suitable pair).