# EzSCCR Calculator

> EzSCCR Calculator (iPhone/iPad app by Takuji Isa.)

- Source: https://appshunter.io/ios/app/ezsccr-calculator/id6807835641 (this page in markdown: same URL + `.md`)
- Developer: [Takuji Isa](https://appshunter.io/developer/6791718759)
- Category: Business
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 16.6 · 1 MB
- Languages: American English
- Released: 2026-09-12
- Data updated: 2026-10-03

## What is EzSCCR Calculator?

EzSCCR Calculator helps electrical panel builders, machine manufacturers, and control panel engineers determine the Short-Circuit Current Rating (SCCR) required for industrial equipment — quickly, on the shop floor or in the field.

WHAT IT DOES

Enter your transformer, feeder, busway, and branch circuit details, and EzSCCR Calculator computes the available symmetrical fault current at the point of installation — then compares it against your machine's rated SCCR to confirm compliance.

STANDARDS SUPPORTED

- UL 508A / NEC (North America)
- IEC 61439 / JIS C 8480 (International)
Switch between standards and languages (English / Japanese) at any time.

KEY FEATURES

- Facility transformer impedance, with optional manufacturing tolerance (ANSI C57.12.00)
- Optional utility source impedance (defaults to a conservative infinite-bus assumption)
- Feeder cable, busway, and branch circuit conductor impedance
- Optional motor contribution estimate
- Clear pass/fail verdict with margin, impedance breakdown, and full calculation detail
- Universal app — works on iPhone and iPad

PROFESSIONAL REPORTS

Generate a clean, one-page technical report — not just a screenshot of the app. Add your customer name, machine model, and serial number, plus your company name, logo, and contact information for a proper letterhead. Save or share as a PDF directly from your device.

PRICING

EzSCCR Calculator is free to download and use, including all calculation features. Printed and PDF reports include a watermark until you remove it with a one-time in-app purchase — no subscription, ever.

IMPORTANT

Results are theoretical estimates based on the values you enter. They are not a substitute for a measured or engineered short-circuit study, and final installation decisions should be verified by a qualified person in accordance with applicable codes (NFPA 70 / NEC or IEC 60909, as applicable).

CALCULATION HISTORY
Each time you print or save a PDF, the inputs and results are saved as a record on your device. Browse past calculations, restore any record to the form, and reissue the report at any time. Add an optional revision note to track changes, and the note is printed on the report. Records are stored on the device and included in standard iCloud device backups. Calculation History is available with the Remove Watermark purchase.

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Watermark | $19.99 | one-time |


## Is EzSCCR Calculator safe?

Not enough ratings yet to assess EzSCCR Calculator.

## Is EzSCCR Calculator legit?

EzSCCR Calculator has limited verification signals. The AppsHunter Legitimacy Score for EzSCCR Calculator is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 2.0 — 2026-09-29

New in 2.0: Calculation History

- Every print or PDF automatically saves your inputs and results as a record.
- Open History to review past calculations and restore any record to the form with one tap.
- Add an optional revision note when printing. The note appears on the PDF and in History.
- Reprinting an unchanged calculation keeps its original note and does not create a duplicate record.

Calculation History is included with the Remove Watermark purchase.

### 1.0 — 2026-09-12

No release notes.

## More apps by Takuji Isa

- [EzKapzy Remote](https://appshunter.io/ios/app/ezkapzy-remote/id6791718757)

All apps by Takuji Isa: https://appshunter.io/developer/6791718759

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-03.*