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

BR 3PH

Symbols

Three-phase bridge rectifier

A three-phase bridge rectifier converts a documented three-phase AC input into a DC output. Its input phase terminals and DC polarity must be identifiable.

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

A distinction that matters

Three-phase rectification differs from a single-phase bridge connection.

Full reference

Symbols

Diode

A diode provides a semiconductor path with documented directional conduction characteristics. The schematic must identify anode, cathode and the intended circuit function.

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

A distinction that matters

A diode's reverse behaviour depends on its type and rating; it is not an ideal mechanical open contact.

Full reference

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