Best Fault Current Calculator Apps

191+ iOS apps curated and reviewed

4.3 avg rating
18 free apps
Updated May 2026

Fault Current Calculator is the household name in fault current calculator, but it's far from the only option. We track 191+ alternatives and competitors on iOS — many free, many higher-rated than you'd expect.

Top Picks for Fault Current Calculator

Fault Current Calculator#1

Fault Current Calculator by Cooper Bussmann, LLC

Editor's Choice
🔧 Utilities
3.1(23 ratings)
FreeIn-App Purchases
Fault Current Calculator screenshot 1
Fault Current Calculator screenshot 2
Fault Current Calculator screenshot 3
Fault Current Calculator screenshot 4
Fault Current Calculator screenshot 5
Fault Current Calculator screenshot 6

This innovative tool helps contractors, engineers, electricians, and inspectors calculate available fault current on single and three-phase systems, size fuses and conductors, and create labels for service equipment. Try it out to easily determine fault current and ensure compliance with electrical safety standards.

Fault Current Finder#3

Fault Current Finder by Octagon Seven LLC

Short Circuit AIC / SCCR
Worth Considering
📊 Productivity
4.2(5 ratings)
FreeIn-App Purchases
Fault Current Finder screenshot 1
Fault Current Finder screenshot 2

This system modeling tool helps engineers, electricians, and facility managers evaluate if electrical devices and equipment are rated to meet maximum available fault current, ensuring operational reliability and worker safety. It calculates short circuit current and provides reports to meet regulatory requirements, such as NEC and OSHA standards, and can be used to determine equipment ratings for systems 600V or less.

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Southwire® Conduit Fill Calc
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