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.

NO EARLYANSI/IEEE early-make normally-open contact symbol: original educational illustration
IEEE / ANSI

ANSI/IEEE early-make normally-open contact symbol

The anticipated NO contact form identifies earlier operation relative to documented associated contacts. The common device reference supplies that comparison; the modifier does not assign a universal millisecond operating time.

Drawing use
Schematic
Application
Control circuits
Reference family
IEEE / ANSI / Manufacturer
Form evidence
Autodesk IEEE-oriented Relays and Contacts functional form. Autodesk explicitly publishes this block under IEEE Symbol Preview. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted.

A distinction that matters

Relative mechanical sequence differs from an electronic on-delay setting.

Full reference
NO EARLYEarly-make normally-open contact: original educational illustration
Symbols

Early-make normally-open contact

An early-make NO contact closes earlier in the mechanism sequence than specified associated contacts. The relative sequence is meaningful only when the linked contacts and common operator are identified.

Drawing use
Schematic
Application
Control circuits
Reference family
IEC / Manufacturer

A distinction that matters

Early make is a relative operating sequence, not a fixed millisecond time delay.

Full reference

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

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