Electrical Calculator: Panel

NEC Load, Circuit & Breaker

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

Also Included In

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 panel utilization percentage — before the inspector shows up. Add circuits with name, voltage, phase, and amperage. The app calculates each circuit's watt load, tracks total connected load, and checks the 80% continuous load rule against your panel rating. WHAT IT CALCULATES: - Total connected load in W and kW - Per-circuit watt load from volts, amps, and phase - Panel utilization percentage with color-coded status - Total amperage at your panel voltage - Overload warning when utilization passes 80% VOLTAGE CONFIGURATIONS: - 120V, 208V, 240V, 277V, 480V - Single phase and three phase KEY FEATURES: - Editable panel schedule with swipe-to-delete and Clear All - NEC 80% continuous load rule check against your main breaker - Enter any main breaker amperage and panel voltage - Watt totals per circuit, W/kW total for the panel - Works completely offline Built for licensed electricians, electrical engineers, and building inspectors.

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Updated app name and metadata.

Version 1.0.3

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.

    More by Shanghai Sheyuan Network Technology Co., Ltd.

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