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Voltage Drop Calculator
Check whether a run stays under the 3% branch-circuit recommendation.
Voltage Drop Calculator
Voltage drop116.91 V at the load
VD = 2 × L × R × I ÷ 1000 (single-phase) or √3 × L × R × I ÷ 1000 (three-phase), DC resistance at 75 °C.
Planning estimates only. Building codes, loads and material specs vary — have a licensed engineer or contractor confirm quantities and safety requirements. Disclaimer
Frequently asked questions
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