Side-by-side reference

Understand the difference.

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

First referenceCompare with

IEEE / ANSI

ANSI duplex receptacle outlet plan symbol

The duplex receptacle is the default convenience outlet in US buildings and is drawn as a circle against the wall with two parallel lines through it. Because it is the most common device on a power plan, legends then modify it with letters for special types rather than inventing new shapes.

Drawing use: GA
Application: Installation & communications
Reference family: IEEE / ANSI
Form evidence: Duplex receptacle plan symbol. US architectural electrical plan practice in the ANSI Y32.9 lineage, read alongside IEEE 315 context; independently drawn, not a certified IEEE or ANSI graphic.

A distinction that matters

The IEC duplex receptacle form shows two outlet shapes; the US plan form uses one circle with two lines.

Full reference

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IEC

Duplex power receptacle

This form distinguishes a duplex receptacle arrangement.

Drawing use: Schematic
Application: Installation & communications
Reference family: IEC / Manufacturer
Form evidence: Duplex power receptacle. Autodesk IEC-60617 Symbol Preview — Single and duplex power-receptacle forms; vendor family reference, not certified IEC geometry or database identifier.

A distinction that matters

A duplex indication does not establish independent supplies or a particular regional socket standard.

Full reference

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