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

Symbols

Busway end feed unit

An end feed unit is the cable or transformer connection box at the start of a busway run. On single-line diagrams it shows where the supply enters the busway and is often annotated with the incoming cable details. Centre feed units, used to reduce voltage drop on long runs, are a related variant.

Drawing use: SLD / GA
Application: Connections & wiring
Reference family: IEC / IEEE / ANSI / Manufacturer

A distinction that matters

An end feed unit brings supply into the busway; a tap-off connection takes supply out of it.

Full reference

Symbols

Feeder busway

Feeder busway carries high current between a transformer and switchboard, or between switchboards, in an enclosed busbar trunking rather than parallel cables. Single-line diagrams draw it as a distinct line style or double line with its rating, so that it is not mistaken for cable.

Drawing use: SLD / GA
Application: Connections & wiring
Reference family: IEC / IEEE / ANSI / Manufacturer

A distinction that matters

Feeder busway has no tap-off points; plug-in busway provides outlets along its length.

Full reference

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