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

KEY SEL 4

IEEE / ANSI

ANSI/IEEE four-position key selector symbol

The four-position key-selector form combines multiple operating selections with a keyed mechanism. Its schematic references need consistent position numbering and the documented permissions for inserting or removing the key.

Drawing use: Schematic
Application: Control circuits
Reference family: IEEE / ANSI / Manufacturer
Form evidence: Autodesk IEEE-oriented 4 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 multi-position key operator is not the same arrangement as several independent key switches.

Full reference

KEY SEL 4

Symbols

Four-position key selector

A four-position key selector provides key-controlled selection among four documented positions. The schematic and operator schedule should agree on position numbering and permitted key removal.

Drawing use: Schematic
Application: Control circuits
Reference family: IEC / Manufacturer

A distinction that matters

A keyed four-position operator is different from four separately keyed switches.

Full reference

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