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Electrician Calc: Wire & Panel

Wire size, voltage drop, panel planner and 21 electrical calculators. NEC and IEC 60364.

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Real ampacity tables, correction factors and protection checks with every step shown. NEC (AWG, feet) or IEC 60364 (mm², metres), picked from your region and switched with one tap.

Free
  • Cable size with ampacity, derating and voltage-drop check
  • Voltage drop: volts, %, end voltage, minimum size
  • Power and Ohm's law for DC, single and three phase
Pro
  • Panel planner: circuits to breakers, cables and RCD groups
  • Motor circuits, fault level, load schedule, PF correction
  • Earth fault loop, earthing conductors and electrodes
  • Solar PV strings, battery and backup power sizing
  • Unlimited projects with PDF reports

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