Southwire Voltage Drop

3.2.4

Southwire Company

4.34

248 reviews

100,000+
Downloads

Free

Southwire Voltage Drop determines proper wire size for an electrical circuit.

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About Southwire Voltage Drop

Southwire Voltage Drop is a tools app developed by Southwire Company.

Download Statistics

Southwire Voltage Drop has been downloaded 140 thousand times. In the last 30 days, the app was downloaded 1.2 thousand times.

User Ratings

Southwire Voltage Drop is rated 4.34 out of 5 stars. The rating is based on 250 ratings.

App Information

Southwire Voltage Drop is FREE to download. The APK download size is 5.18 MB. The latest version available is 3.2.4. The last update was on July 24, 2025.

Technical Requirements

Southwire Voltage Drop requires Android 8.0+ or higher. The app has a content rating of Everyone. The app has been available on Google Play September 2014.

Description

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.

More data about Southwire Voltage Drop

Price	Free to download
Total downloads	140 thousand
Recent downloads	1.2 thousand
Rating	4.34 based on 250 ratings
Ranking	Not ranked
Version	3.2.4
APK size	5.18 MB
Number of libraries	22
Designed for Android	8.0+
Suitable for	Everyone
Ads	NO ads

App Performance Report

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Comments on Southwire Voltage Drop for Android

★★★★★ steven l · Dec 7, 2020

Just what is needed for quick field calculations for what size wire is needed to be pulled.

★★★★☆ Jeff Stowasser · Mar 12, 2020

Spot on, except I wish the app gave an option to select insulation classes of conductors. Instead, it defaults to 60c insulation which is strange being that 75c is a typical spec. Just know your ampacity ratings of conductors, and base your selection off of the voltage drop. I.e... size 3 in the app is rated for 85A(60c), but I'm running size 3 THHN(90c) which is good for 115A.

★★★★★ Brett Gamble · Mar 27, 2020

Awesome, quick tool to use. Helps make the correct Calculations. Saves time and Money.

★★★★★ Point Cross Beach RV Park · Nov 16, 2023

Must-have for all involved in electrical project for quick, accurate answers with a +/- standard deviation.

★★★★☆ Merlin StWahgwaan · Aug 9, 2024

Very useful app! Very easy to explain and show a 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.

★★☆☆☆ Eric Sillers · May 19, 2021

Okay, I guess. It would be better to see data presented in a table format. No default options for low voltages. And will not calculate wire sizes smaller than 14 AWG; an option to just type in the Cmil area would be nice.

★★☆☆☆ Dan Hustad · Oct 20, 2020

Some of the ampacity tables are incorrect. 4/0 aluminum is listed as 205 amps at 75 degrees Celsius. In fact, it is only good for 180 amps at that temperature.

★☆☆☆☆ Shayne H · Nov 12, 2021

Great App Bad Advice, I know you sell wire, but intentionally misinforming users about Table 310.15(B)(16) in the NEC isn't okay. You're not being conservative your intentionally misleading to sell larger wire. Fix and I will change my review, for voltage drop, ignoring wire size warnings, app works great.

★★☆☆☆ Richard Hutchins · Jun 8, 2021

I don't know why the South wire app calculates a different result than the South wire website. Which one is right? Try, 60amp,copper, 3-phz, 60Hz,208v, conduit, 150ft run, min conductor and 3% allowable v-drop. Would be great otherwise.

Google Play Rankings for Southwire Voltage Drop

This app is not ranked

Technologies used by Southwire Voltage Drop

Southwire Voltage Drop is requesting 9 permissions and is using 24 libraries.

Permissions

Network communication

view network connections, full network access

Your accounts

read Google service configuration

Hardware controls

control vibration

System tools

prevent phone from sleeping

Extra

android.permission.ACCESS_ADSERVICES_AD_ID, android.permission.ACCESS_ADSERVICES_ATTRIBUTION, com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE, com.southwire.voltageDrop.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION

Ad network libraries

None found

Social libraries

None found

Development tools

Android Jetpack core

Android Architecture Components

Android Jetpack VersionedParcelable Firebase Android Library Icon

Firebase

Android Jetpack Annotations Android Jetpack Widgets Android Library Icon

Android Jetpack Widgets Android Jetpack AppCompat Android Library Icon

Android Jetpack AppCompat AndroidX Activity Android Library Icon

AndroidX Activity Android Activity Saved State Android Library Icon

Android Activity Saved State AndroidX Loader Android Library Icon

AndroidX Loader

Android Transition Support Library

Android Support Library collections Kotlin Android Library Icon

Kotlin

Android Support VectorDrawable AndroidX App Startup Android Library Icon

AndroidX App Startup AndroidX Concurrent Futures Android Library Icon

AndroidX Concurrent Futures AndroidX Emoji / Emoji2 Android Library Icon

AndroidX Emoji / Emoji2 AndroidX ProfileInstaller Android Library Icon

AndroidX ProfileInstaller AndroidX Preference Android Library Icon

AndroidX Preference Jetpack DataStore Android Library Icon

Jetpack DataStore AndroidX Privacy Sandbox Android Library Icon

AndroidX Privacy Sandbox AndroidX Credentials Android Library Icon

AndroidX Credentials

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