Understand the difference.

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

SEL 3 HOLD

IEEE / ANSI

ANSI/IEEE three-position maintained selector symbol

The three-position maintained selector form provides three stable choices in the named library. Each associated contact is interpreted through the complete position table, with a shared tag tying the operator and contact blocks together.

Drawing use

Schematic

Application

Control circuits

Reference family

IEEE / ANSI / Manufacturer

Form evidence

Autodesk IEEE-oriented 3 Position Selector Switches 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 stable centre position and a spring-return centre position describe different mechanisms.

Full referenceAdd to legend

SEL 3 HOLD

Symbols

Three-position maintained selector

A three-position maintained selector stays at the selected position until manually moved. The schematic needs a contact-state schedule covering all three positions so modes such as local, off and remote are unambiguous.

Drawing use

Schematic

Application

Control circuits

Reference family

IEC / Manufacturer

A distinction that matters

Three maintained positions differ from a selector that spring-returns to centre.

Full referenceAdd to legend

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