Understand the difference.

Compare the meaning, drawing context and source references of two entries. A similar graphic or shared abbreviation does not establish equivalence.

N

IEEE / ANSI

ANSI/IEEE Neutral link, open form

This reference locates neutral link, open in Autodesk's IEEE-oriented fuses family. The open neutral link shows the link withdrawn so that the neutral is disconnected. Drawings use it where a circuit is normally run with the neutral open, for example to isolate a spare or to segregate a neutral during a changeover, and on test procedures that show the link removed. The public library uses HFU1NLO for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.

Drawing use

SLD / Schematic

Application

Connections & wiring

Reference family

IEEE / ANSI / Manufacturer

Form evidence

Neutral Link - Open. Autodesk IEEE Symbol Preview: Fuses, block HFU1NLO. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.

A distinction that matters

An open neutral link is disconnected; the closed form shows normal continuity.

Full referenceAdd to legend

N

IEC

Neutral link, open

The open neutral link shows the link withdrawn so that the neutral is disconnected. Drawings use it where a circuit is normally run with the neutral open, for example to isolate a spare or to segregate a neutral during a changeover, and on test procedures that show the link removed.

Drawing use

SLD / Schematic

Application

Connections & wiring

Reference family

IEC / Manufacturer

Form evidence

Neutral link, open. Autodesk IEC-60617 Symbol Preview: Fuses (Neutral Link - Open); vendor family reference, not certified IEC geometry.

A distinction that matters

An open neutral link is disconnected; the closed form shows normal continuity.

Full referenceAdd to legend

Original educational previews. Follow the source references on each full entry for the appropriate standard or selected product.