Electrical Panel Load Calc

NEC Circuit & Breaker Sizing

$4.99 · Designed for iPad. Not verified for macOS.

Calculate electrical panel loads instantly with NEC 80 percent rule checks — built for electricians and engineers. Filling out a panel schedule and need to check if total connected load passes the NEC 80% continuous load rule? Add your circuits, see kW totals, and get an instant pass/fail status — before the inspector shows up. Add circuits with name, voltage, phase, and amperage. The app calculates each circuit's kW load, tracks total connected load, and checks NEC Article 220 demand factors and the 80% continuous load rule against your panel rating. WHAT IT CALCULATES: - Total connected load in kW and VA - NEC demand load per Article 220 - Panel utilization percentage with color-coded status - Maximum continuous load based on panel ampere rating - Clear PASS or FAIL status for the 80% rule VOLTAGE CONFIGURATIONS: - 120V, 208V, 240V, 277V, 480V - Single phase and three phase KEY FEATURES: - NEC Article 220 branch-circuit load calculations - NEC 210.20 continuous load 80% rule check - Standard breaker sizes: 15A through 200A - Panel ratings from 100A to 400A - kW and VA totals per circuit and panel - Works completely offline Built for licensed electricians, electrical engineers, and building inspectors.

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Added a More Pro Tools section to discover related field calculators.

Version 1.0.2

The developer, Shanghai Sheyuan Network Technology Co., Ltd., indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Shanghai Sheyuan Network Technology Co., Ltd.
    Size
    • 1.1 MB
    Category
    • Utilities
    Compatibility
    Requires iOS 17.0 or later.
    • iPhone
      Requires iOS 17.0 or later.
    • iPad
      Requires iPadOS 17.0 or later.
    • Mac
      Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Sheyuan Inc.
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.

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