Electric Master: NEC Panel

Electric Master: NEC Panel

Wire Size, Box Fill & Schedule

5 ratings
Free
In-App Purchases

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Details

Released
March 23, 2026
Updated
October 23, 2026

Features

Electric Master: NEC Panel screenshot #1 for iPhone
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Electric Master: NEC Panel screenshot #5 for iPhone
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Electric Master: NEC Panel screenshot #7 for iPhone
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Electric Master: NEC Panel screenshot #10 for iPhone
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About

This app provides a suite of electrical calculation tools for professionals, offering NEC-compliant solutions for wire sizing, voltage drop, and more. It works offline and allows for PDF export of results with custom branding.

✓NEC-compliant electrical calculators
✓Offline functionality
✓Voltage drop calculations
✓Ampacity and wire sizing
✓PDF export with branding
✓Calculation history
✓Siri Shortcuts integration
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What's New in Electric Master

2.4.0

October 23, 2026

NEW: Missions, the new center tab. Learn safe isolation, testing, fault finding, wiring, motors and solar the fun way — 25 story missions with real procedures and ridiculous stakes, from a candlelit dinner to a telenovela in the pump room. Play under NEC, CEC, BS 7671 or DIN VDE. Come back for the Daily Challenge and its streak, replay remixes where the fault moves, climb the career ranks, and turn on Hints in Guided mode when you're stuck. Plays with VoiceOver and at the largest text sizes. Every disaster lands in the Disaster Gallery — in the game, never on the job. NEC and CEC panels that look like the real thing • The Panel is drawn like a real load center: breakers seated on the bus, neutral and ground bars, circuit numbers and labels, SPARE and SPACE. The meter socket, disconnects, transfer switch, surge protection and a generator interlock kit are drawn beside or on the panel. • “Wire this circuit” or “Wire all” dresses the conductors down the gutter to their lugs and bar screws, with sleeves and jacket print. • The PDF prints a professional set: the dead front with a door-card circuit directory, the wiring page with conductor identification, and a conductor schedule, on Letter or ANSI B. • Every breaker sits in exactly the spaces the Schedule gives it, and dragging shows only the spaces it can take. Panels saved earlier are never changed for you: overlaps are outlined in red, with a one-tap Re-seat. • Schematic for NEC and CEC panels (beta): legs A, B and C, neutral and ground, AWG conductors such as 12/2 w/G, GFCI, AFCI and dual-function breakers. Free to view; export on ANSI B or Letter with Pro. Selectivity, rebuilt • Pick the real device from the manufacturer's range; its rating, breaking capacity and settings carry over. • Results update live, with a reason for every pair. • Your diagram is saved and reopens from History. PDFs include the diagram and the trip curves. New calculators • 15 new Pro tools: Panel Balance, OCPD Sizing, Taps & Bonding, Max Demand, Circuit Check / Circuit Sizer, HVAC Nameplate, Solar PV, Motors & Generators, Cable Pulling, Lighting, Cable Tray, Test Limits, Arc Flash, Enclosure Heat and Reference. • Two new free tools: Tape Calculator and Trade Converter. • EV Charger now follows every standard: NEC, CEC, BS 7671 and DIN VDE. Fault Current now works natively under BS 7671 and DIN VDE. Also new: the app is now available in Turkish.

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Subscriptions & In-App Purchases

Pro Yearly — All Calculators

All 20 calculators, history, PDF export.

$59.991 Year
How to cancel Electric Master subscription ⁉️

Developer apps

FAQ

What electrical codes does ElectriCalc support?

ElectriCalc supports the NEC 2023 and NEC 2026 editions, as well as the CEC 2024 (Canadian Electrical Code). The app can auto-detect the standard by region.

Can I use ElectriCalc without an internet connection?

Yes, ElectriCalc is designed to work 100% offline. You do not need an internet connection, accounts, or tracking to use its calculators on the job site.

How many calculators are included in ElectriCalc?

ElectriCalc offers a total of 20 calculators. Six are available for free, including Voltage Drop, Ampacity, and Ohms Law, with 14 additional Pro calculators available through in-app purchase.

What professional features does ElectriCalc offer?

Professional features include PDF export of branded reports with your logo and contact info, saved calculation history tagged by project, side-by-side comparison mode, Siri Shortcuts for voice commands, and a home screen widget.

Does ElectriCalc have ads?

No, ElectriCalc does not contain advertisements. The app focuses on providing a clean, uninterrupted experience for professionals.

What is the pricing for ElectriCalc Pro?

ElectriCalc Pro is available via a monthly subscription priced at $9.99 per month. This unlocks the 14 Pro calculators and advanced features.

What devices is ElectriCalc compatible with?

ElectriCalc is compatible with iPhones and iPads. It is rated for ages 4 and up.

How often is ElectriCalc updated?

The latest version of ElectriCalc is 1.4.0, last updated on May 4, 2026. Updates typically include new code editions and feature enhancements.