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Fault Current Calculator

Fault Current Calculator

by Cooper Bussmann, LLC

27 ratings
10 reviews
🔧 Utilities
Free
In-App Purchases

Details

Released
May 21, 2013
Updated
September 17, 2025

Features

Developer

Cooper Bussmann, LLC
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Fault Current Calculator screenshot #1 for iPhone
Fault Current Calculator screenshot #2 for iPhone
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Fault Current Calculator screenshot #5 for iPhone
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Fault Current Calculator screenshot #8 for iPhone
Fault Current Calculator screenshot #9 for iPhone
Fault Current Calculator screenshot #10 for iPhone
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About

This tool helps contractors, engineers, and electricians quickly calculate available fault current on single and three-phase electrical systems. It also assists in sizing fuses and conductors for various circuits and can generate labels for service equipment.

✓Calculate available fault current
✓Size fuses and conductors
✓Generate service equipment labels
✓Single and three-phase system support
✓NEC® 110.24 compliance
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What's New in Fault Current Calculator

4.2.1

September 17, 2025

We’ve made several behind-the-scenes improvements to enhance the user experience: - Smoother navigation for a streamlined sign-up process - Minor bug fixes to keep things running reliably - Small design tweaks for a cleaner, more intuitive interface Update now to enjoy a more seamless FC2 experience!

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Subscriptions & In-App Purchases

Pro Monthly Subscription

Get access to all features

$4.991 Month
7 Days trial
How to cancel Fault Current Calculator subscription ⁉️

User reviews

Most RecentHighest RatedLowest Rated

Stuck in update

Used to work great- forced to pay for the upgraded version that doesn’t work. Its stuck in the spinning wheel of updating
TTommyhuts

Can’t even open the app

Stuck on a black screen, please update
CCHOD25

Could be 5 star

This app secretly updated itself to a pro version which I am not paying for. I can no longer download the standard version.
Jjtoverka

Basically it’s a label creator

Basically it’s a label creator, kinda silly and poorly designed.
MMr.Picky

Two issues

Will not allow selection of 10kVA transformer. Will not email labels with iOS 12.
For my use, these are small problems that if fixed would garner the app 5 stars from me.
OTOBX tek
See 5 more reviews

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FAQ

What is Fault Current Calculator used for?

Fault Current Calculator is used to determine the available fault current on single and three-phase electrical systems. It also assists in sizing fuses and conductors for service, feeder, and branch circuits, and can generate labels for service equipment.

Is Fault Current Calculator free to use?

The basic version of Fault Current Calculator is free to download and use. However, it offers optional Pro subscription plans for enhanced features, with a 7-day free trial available for both monthly and annual subscriptions.

What are the subscription options for Fault Current Calculator?

Fault Current Calculator offers a Pro Monthly Subscription for $4.99 per month and a Pro Annual Subscription for $39.99 per year. Both plans include a 7-day free trial.

What devices does Fault Current Calculator support?

Fault Current Calculator is supported on iPhone, iPad, and iPod devices. It is designed for mobile use in the field or on the go.

How often is Fault Current Calculator updated?

The latest version of Fault Current Calculator is 4.2.1, last updated on September 17, 2025. Updates are released periodically to improve functionality and technical information.

What is the age rating for Fault Current Calculator?

Fault Current Calculator has an age rating of 17+. This is likely due to the technical nature of the calculations and information provided, which is intended for professional use.

Does Fault Current Calculator have ads?

No, Fault Current Calculator does not contain advertisements. The application is free to use, with optional in-app purchases for premium subscription features.

Where can I find the End-User License Agreement for Fault Current Calculator?

The complete End-User License Agreement for Fault Current Calculator can be found at https://faultcurrentcalculatorpro.bussmann.com/home/eula. It outlines the terms of use and disclaimers.