Prysmian Group Voltage Drop

Prysmian Group Voltage Drop is a calculator app built for contractors, electricians, and electrical professionals who need to determine voltage drop quickly on the job site.

Find the maximum circuit distance and minimum conductor size needed for your installation in seconds. Input your amperage, and the app calculates the required conductor size based on NEC® Table T310.15(B)(16) at 75°C rating. You'll see the actual voltage loss, maximum allowable voltage loss, and maximum amps for your chosen conductor—all the data you need to size circuits correctly and meet code.

The Maximum Circuit Distance section works the other way: select a conductor size and discover how far you can run that circuit while staying within allowable voltage loss limits. This view displays the actual voltage loss, allowable voltage loss, and maximum amperage capacity for reference.

Switch between metric and standard conductors depending on your project requirements. The app supports NEC® code editions from 2011, 2014, and 2017, so you can stay compliant with the version your jurisdiction requires.

No guesswork, no tables to flip through, no math errors on the back of an invoice. Prysmian Group Voltage Drop puts accurate voltage drop calculations in your pocket, saving time on every job and helping you specify the right wire the first time.