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Harmonic Neutral Sizer

Neutral ampacity for nonlinear loads with the 200% neutral call. 3 inputs, 3 outputs with grouped results.

Inputs

Load

Highest loaded phase.

Drives, LED drivers, IT loads as percent of load.

Triplen-heavy loads?

Single-phase switch-mode loads stack triplens on the neutral.

Result

Calculated neutral current
Waiting for calculation.
Required neutral ampacity
Waiting for calculation.
Use 200% neutral (1=yes)
Waiting for calculation.
Screening calculation only. Verify against NEC articles cited on the page and the equipment nameplate; the authority having jurisdiction governs.

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Workspace

Keep the assumptions with the result.

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