
Free
About
Voltius is an electrical conductor sizing app based on the guidelines of NBR 5410, designed for engineers, electricians, and technicians who need fast and accurate calculations in the field or office.
FEATURES
9 installation methods: A1, A2, B1, B2, C, D, E, F, and G
Copper (Cu) and aluminum (Al) conductors
PVC 70°C and EPR 90°C insulation types
Voltage drop calculation (VD) with automatic conductor resizing
Temperature correction factors (in accordance with NBR 5410)
Grouping factors — based on tables 42 and 43 of NBR 5410
Support for parallel and multicore conductors
Automatic mm² ↔ AWG conversion
Automatic neutral conductor sizing
Light and dark mode
Available in Portuguese, English, and Spanish
WHO IT’S FOR
Voltius is designed for professionals working with low-voltage electrical installations who require reliable conductor sizing aligned with Brazilian standard practices.
REFERENCE STANDARD
NBR 5410:2004 — Low-voltage electrical installations
This application is a support tool and does not replace consultation of the official standard.
All calculations should be validated by a qualified professional.
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What's New in Voltius
1.0
April 28, 2026





