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Wiring

Neutral Conductor Current Screen

Compare an already-determined neutral current with sourced candidate neutral ampacities.

01 / User supplied data

Neutral conductor current screen

Format: label | allowable ampacity (A) | source | version/edition | source date (YYYY-MM-DD) | optional numeric ordering key

Screen: I_neutral ≤ I_allowable. Equal values pass. Margin = allowable ampacity − neutral current.

User-data screening estimate only. Enter the neutral current yourself; this tool does not infer it from phase current, balance, harmonics, equipment or operating profile. No code sizing or compliance decision.

02 / Screening result

Candidate comparison

Enter neutral current and sourced candidate ratings, then screen.

Enter neutral current and sourced candidate ratings, then screen.

Method and boundaries

Each candidate passes when entered neutral current ≤ its user-entered allowable ampacity. The tool normalizes A, mA and kA to amperes and reports each margin.

Neutral current is supplied by the user. The tool does not derive it from phase current, load balance, harmonics, equipment or operating profile. It does not calculate harmonics, neutral reduction or oversizing, code ampacity tables, jurisdiction factors, OCPD coordination, installation suitability or compliance.

FAQ

What does this calculator compute?

A candidate passes when the neutral current you enter is less than or equal to that candidate’s allowable ampacity. The tool also shows the margin.

Which current units are accepted?

Neutral current and ampacity may be entered in A, mA, or kA. Values are normalized to amperes before the comparison.

Does it calculate the neutral current?

No. You supply the neutral current. The tool does not derive it from phase currents, unbalance, or harmonics, and it does not apply a code ampacity table.

Source records

This calculation record stores no external source. Thresholds you enter on the page are not a verified standard limit.