Fault Current Calculator vs Arc Flash Label Calculator
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Fault Current Calculator
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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Eaton's Bussmann Series FC2 Available Fault Current Calculator application is an innovative tool developed for contractors, engineers, electricians, and electrical inspectors. This tool can be used on the Bussmann website or out in the field on a mobile device for those needing a quick and simple way to determine available fault current. With this simple tool, users can: - Calculate available fault current on single and three-phase systems - Create and send a label via email for marking the available fault current on service equipment (NEC® 110.24) - Size fuses and conductors for service, feeder, and branch circuits. This application, calculations, and other information are intended to clearly present technical information that will determine the available fault current at specific points in an electrical system. Bussmann reserves the right, without notice, to change this application and/or discontinue/ limit its distribution and/or availability. Bussmann also reserves the right to change or update, without notice, any technical information contained in this application. The data and information presented in this application are believed to be accurate. However, any and all liability for the content, or any omissions from this application, including any inaccuracies, errors, or misstatements in such data, calculations or information, is expressly disclaimed. The application, calculations and other information are provided without warranty of any kind, either expressed or implied, but not limited to, the implied warranties of merchantability, or fitness for a particular purpose. Bussmann disclaims any liability for the use of this application, calculations or other information. The complete End-User License Agreement can be found at: https://faultcurrentcalculatorpro.bussmann.com/home/eula
Arc Flash Label Calculator
Calculate and generate arc flash labels for electrical equipment. Input data to produce PDF labels based on NFPA 70E standards, including incident energy and approach boundaries. Supports various circuit breakers, fuses, and voltage levels.
- Arc flash label calculation
- NFPA 70E Annex D.4 methodology
- Support for MCCB, ICCB, LSI, and fuses
- Calculates Incident Energy, Arc Flash Boundary, Approach Boundaries
- Generates PDF labels (4 per sheet)
- Supports low, medium, and high voltage equipment
- Custom configurations for gap, distance, and time
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An easy to use develop arc flash label calculator and label generator. Input the necessary information into the app and it will generate a PDF label using NFPA 70E Annex D.4 (VAC) arc flash label calculations & methodology. Support for circuit breakers: MCCB, ICCB & LSI (Electronic LVPCB) and fuses by Cooper Bussmann and Ferraz-Shawmut including Classes: RK1, RK5, L, J, CC, T & H. Wide support for different overcurrent protection devices and pre-programmed models are setup for easy use. Custom configurations are supported by adjustments conductor gap, working distance and arcing time. Arc flash label calculates and includes: Incident Energy [cal/cm^2], Arc Flash Boundary, Limited Approach Boundary, Restricted Approach Boundary, Hazard Risk Category, voltage and short circuit current. Labels output 4 per sheet using standard 4 label template. Develop arc flash labels for low, medium and high voltage three phase equipment up to 15,000VAC and 1,000VDC. High voltage package required for voltages over 220V. Quick preset options to support major international standards. Requires Mail app configured for outgoing email.
Screenshots
Verdict
The clearest difference is review sentiment: Arc Flash Label Calculator at 50% against Fault Current Calculator's 0%. Arc Flash Label Calculator also leads on rating (3.5 vs 3.0) and update cadence (fortnightly vs every 4 months). Fault Current Calculator's advantage is ratings volume (27 vs 6). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Fault Current Calculator sells 2 in-app purchases, starting at $4.99 per month and Arc Flash Label Calculator sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Arc Flash Label Calculator holds the better App Store score, 3.5 against 3.0. Both are backed by a comparable volume of ratings — 27 and 6 respectively. Written reviews point the same way: 0% of Fault Current Calculator's written reviews are positive against 50% of Arc Flash Label Calculator's.
Fault Current Calculator ships an update every 4 months, Arc Flash Label Calculator fortnightly. The most recent releases landed on November 1, 2026 and November 2, 2026 respectively.
| Parameter | Fault Current Calculator | Arc Flash Label Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (27 ratings) | 3.5 (6 ratings) — better |
| Positive reviews | 0.0% of reviews | 50.0% of reviews — better |
| Number of ratings | 27 — better | 6 |
| Update frequency | Every 4 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free — better |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 14.0 | 9.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 20 MB |
| Age rating | 17+ | 4+ |
| Developer | Cooper Bussmann, LLC | Octagon Seven LLC |
Customer experience
Fault Current Calculator
Arc Flash Label Calculator
In-app purchases
Fault Current Calculator
- Pro Monthly Subscription7 Days trial$4.991 Month
- Pro Annual Subscription7 Days trial$39.991 Year
Arc Flash Label Calculator
- Unlock High Voltage Arc Flash$19.99
Questions
Is Fault Current Calculator free?
Is Arc Flash Label Calculator free?
Which has better reviews, Fault Current Calculator or Arc Flash Label Calculator?
Do Fault Current Calculator or Arc Flash Label Calculator have ads?
Which is updated more often, Fault Current Calculator or Arc Flash Label Calculator?
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