Understand the difference.

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

KEY HOLD

IEEE / ANSI

ANSI/IEEE Latched key-operated switch form

This reference locates latched key-operated switch in Autodesk's IEEE-oriented miscellaneous switches family. A latched key-operated switch retains its commanded position according to the selected mechanism. The drawing should specify how the latched position is released and where the key is removable. The public library uses HPB11KSL for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.

Drawing use

Schematic

Application

Control circuits

Reference family

IEEE / ANSI / Manufacturer

Form evidence

Key Switch Latched, Normally Open. Autodesk IEEE Symbol Preview: Miscellaneous Switches, block HPB11KSL. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.

A distinction that matters

Mechanically latched operation is different from a relay holding circuit.

Full referenceAdd to legend

KEY HOLD

Symbols

Latched key-operated switch

A latched key-operated switch retains its commanded position according to the selected mechanism. The drawing should specify how the latched position is released and where the key is removable.

Drawing use

Schematic

Application

Control circuits

Reference family

IEC / Manufacturer

A distinction that matters

Mechanically latched operation is different from a relay holding circuit.

Full referenceAdd to legend

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