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

BEACON ROT

Symbols

Rotating beacon

A rotating beacon provides a documented rotating visual signal through its specified mechanism or assembly. Its supply and command must be recorded with the visual signal's meaning.

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

A distinction that matters

Rotating and flashing signal mechanisms are distinct indication descriptions.

Full reference

Lamp

Symbols

Indicator lamp

An indicator lamp shows an operating condition defined by its circuit and label. The generic representation identifies an indicating element; it does not define what illumination means, the supply voltage or whether the device is continuously lit or flashing.

Drawing use: Schematic
Application: Control circuits
Reference family: IEC / IEEE / ANSI

A distinction that matters

An indication mark does not establish that equipment is safe, isolated or de-energised. Its meaning comes from the full circuit and operating documentation.

Full reference

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