Understand the difference.

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

FB

IEC

Floor box outlet

A floor box houses socket outlets and frequently data outlets below a hinged lid flush with the finished floor. Plans draw a square around the outlet mark, sometimes with a diagonal or the letters FB, and list the box contents in a schedule because each box can hold several accessory types.

Drawing use

GA

Application

Installation & communications

Reference family

IEC

Form evidence

Floor outlet. IEC 60617 installation-plan style (architectural and topographical installation symbols); independently drawn, not certified IEC geometry or a database identifier.

A distinction that matters

A multiple socket outlet on a wall shows a gang count; a floor box is an enclosure whose contents are scheduled separately.

Full referenceAdd to legend

SOn

IEC

Multiple socket outlet

A multiple socket outlet groups two, three or four outlets in one accessory or box. IEC-style plans usually draw a single outlet form with the number of outlets written beside it, or with short parallel strokes on the outlet, instead of drawing each outlet separately.

Drawing use

GA

Application

Installation & communications

Reference family

IEC

Form evidence

Multiple socket outlet. IEC 60617 installation-plan style (architectural and topographical installation symbols); independently drawn, not certified IEC geometry or a database identifier.

A distinction that matters

The duplex receptacle form in schematic libraries shows two outlets graphically; this plan mark counts outlets with a numeral.

Full referenceAdd to legend

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