Southwire Voltage Drop

4.3
231 reviews
1L+
Downloads
Content rating
Everyone
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About this app

Southwire's voltage drop calculator will help you determine the proper wire size for an electrical circuit based on the voltage drop and current carrying capacity of an electrical circuit. Determines wire size to meet specific voltage drop limits or calculates voltage drop for a specific conductor run. When sizing conductors, calculations limits wire size to voltage drop and NEC ampacity. Southwire's Voltage Drop Calculator is designed for applications using AWG and KCMIL sizes only.
Updated on
22 Oct 2024

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region and age. The developer provided this information and may update it over time.
No data shared with third parties
Learn more about how developers declare sharing
This app may collect these data types
Location and App info and performance
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.3
224 reviews
Merlin StWahgwaan
9 August 2024
Very useful app! Very easy to explain and show an non-electrically inclined person why they have voltage issues under full load with long wire runs of insufficient gauge. Only suggestion would be, add split phase (dual phase) selections, as most of North America residential and small commercial power is 240v split phase, not just single phase 120v or three phase as is available in the app now.
1 person found this review helpful
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Dave Culver
1 August 2024
Good tool, would be great if I could see the entered info instead of dots and dashes. Update - problem is fixed, thanks!
3 people found this review helpful
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Southwire Company
25 July 2024
Check out the latest version of Voltage Drop. We've just made some improvements based on your feedback.
Bradley Fisk
30 April 2021
Excellent app for a construction electrician, or maintenance electrician who does rewiring jobs. Multiple options, first you have to learn how to calculate several wires of different sizes in one conduit, but after you do it is intuitive and just a great program
15 people found this review helpful
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What's new

Behind the scenes update