TS EN 80416-3

TS EN 80416-3 is the standard that gives guidelines for applying graphical symbols used on equipment. Its focus is not on inventing the symbol itself, but on how that symbol is placed and presented on a device, panel, or other equipment so that visual clarity and overall consistency are preserved.

The role of graphical symbols on equipment

In general technical practice, graphical symbols are language-independent carriers of information. On equipment, they may identify controls, connection points, adjustment elements, warnings, or functional indications. For such symbols to work well, it is not enough that the shape be correct; size, placement, orientation, surrounding space, and the relationship to nearby markings also matter.

What this part adds as application guidance

This part provides guidance aimed at maintaining visual clarity and overall consistency when graphical symbols are applied. In practical terms, the technical meaning of a symbol and the way it is presented on the equipment surface both affect usability; poor placement or inconsistent rendering can make the symbol harder to read and can create confusion in the equipment interface.

• The placement of the symbol in relation to surrounding space on the equipment
• Maintaining visual consistency across different equipment surfaces
• An application approach that supports legibility and distinct recognition
• Keeping markings harmonised within a single equipment family