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/IEEE switch-disconnector symbol

A switch-disconnector representation identifies operational switching combined with a documented isolation function. The distinction matters when selecting a library element for a feeder that must both switch its assigned load and provide isolation.

Drawing use: SLD / Schematic
Application: Power distribution
Reference family: IEEE / ANSI / Manufacturer
Form evidence: Autodesk IEEE-oriented Disconnect 1 Pole functional form. Autodesk explicitly publishes this block under IEEE Symbol Preview. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted.

A distinction that matters

A disconnector and a switch-disconnector can share a family of contact graphics without sharing the same switching duty.

Full reference

Symbols

Switch-disconnector

A switch-disconnector combines operational switching with an isolation function. Its designation should distinguish it from a disconnector that is not intended to interrupt load current.

Drawing use: SLD / Schematic
Application: Power distribution
Reference family: IEC / Manufacturer

A distinction that matters

A load-break switch is not automatically a switch-disconnector; isolation suitability must be documented.

Full reference

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