Understand the difference.

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

&

IEC

IEC AND gate (rectangular form)

The IEC rectangular AND element is a plain box with the ampersand written near the top centre. Inputs enter on the left and the single output leaves on the right, so the function is identified by the qualifier rather than by the outline shape. All inputs must stand at their internal 1 state for the output to take its internal 1 state.

Drawing use

Schematic

Application

Logic & signals

Reference family

IEC / Manufacturer

Form evidence

Rectangular outline with the & general qualifying symbol. Qualifying-symbol and dependency conventions as explained in TI's public overview of IEEE Std 91-1984, which incorporates IEC 617-12 work. Independent educational drawing; not certified IEC geometry or an IEC database identifier. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted.

A distinction that matters

The ≥1 OR element uses the same box; only the qualifier differs, so a misread character changes the whole function.

Full referenceAdd to legend

AND

Symbols

AND gate

A logic element whose output is true when all stated positive-logic inputs are true.

Drawing use

Schematic

Application

Logic & signals

Reference family

Manufacturer

A distinction that matters

An AND gate combines logical conditions; it does not specify relay-contact current capacity or a safety integrity level.

Full referenceAdd to legend

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