Understand the difference.

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

X

Symbols

Connector with protective earth contact

This form identifies a connector where one contact carries the protective conductor. The earth contact is normally longer so it makes before and breaks after the live contacts, keeping the connected equipment earthed whenever it could be energised. The earth pin is drawn with a protective earth mark or PE label.

Drawing use

Schematic

Application

Connections & wiring

Reference family

IEC / IEEE / ANSI

A distinction that matters

A connector PE contact carries the protective conductor through a separable joint; a protective earth terminal is a fixed connection point.

Full referenceAdd to legend

PE

Symbols

Protective earth

Protective-earth identification indicates a connection serving the protective earthing function. It should be distinguished from functional earthing, signal references and other grounding conventions. The drawing context and applicable documentation establish the meaning of each connection.

Drawing use

SLD / Schematic

Application

Connections & wiring

Reference family

IEC / IEEE / ANSI

A distinction that matters

Protective earth, functional earth and a signal common are different functions even when a drawing uses visually related marks.

Full referenceAdd to legend

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