Voltage drop status
Within limit
The selected cable size stays within the configured voltage-drop target.
Calculator preliminar
Voltage drop calculator
Estimate voltage drop for a selected conductor size, material, route length, and system type.
How to use this calculator
- Enter one-way route length. AC and DC return-path factors are handled automatically.
- This is a simplified resistive estimate intended for fast engineering checks and concept validation.
- Final design still needs code-specific checks for installation method, temperature correction, harmonics, grouping, and fault duty.
Voltage drop
1.04%
4.17 V estimated drop over the selected route.
Allowed drop
12 V
Maximum drop allowed by your target percentage.
Remaining voltage
395.83 V
Estimated voltage available at the load after the cable drop.
Cable ampacity
76 A
Reference ampacity from the simplified baseline table for the selected cable size.