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

Q1020604

IEEE / ANSI

ANSI/IEEE Manually released latching device form

This reference locates manually released latching device in Autodesk's IEEE-oriented mechanical controls, latching device family. This qualifier identifies release of a latching mechanism by manual action. The retained mechanism is released through a documented manual action. Resetting the mechanism and removing electrical supply can be different events. The public library uses Q1020604 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.

Drawing use: Schematic
Application: Control circuits
Reference family: IEEE / ANSI / Manufacturer
Form evidence: Latch Device with Manual Unlatching. Autodesk IEEE Symbol Preview: Mechanical Controls, Latching Device, block Q1020604. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.

A distinction that matters

Manual unlatching differs from de-energising an ordinary relay coil.

Full reference

Q1020604

IEC

Manually released latching device

This qualifier identifies release of a latching mechanism by manual action. The retained mechanism is released through a documented manual action. Resetting the mechanism and removing electrical supply can be different events.

Drawing use: Schematic
Application: Control circuits
Reference family: IEC / Manufacturer
Form evidence: Manually released latching device. Autodesk IEC-60617 Symbol Preview — Latching-device qualifiers; vendor family reference, not certified IEC geometry or database identifier.

A distinction that matters

Manual unlatching differs from de-energising an ordinary relay coil.

Full reference

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