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

K LATCH

IEEE / ANSI

ANSI/IEEE mechanically latched relay coil symbol

The latching relay form identifies an operating element whose mechanism retains a documented state. Its reset or release representation completes the circuit-reading sequence; removing the initiating command may not restore the initial position.

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

Mechanical retention and an electrical seal-in circuit achieve persistence through different arrangements.

Full reference

K LATCH

Symbols

Mechanically latched relay coil

A mechanically latched relay retains a documented state after the initiating electrical command is removed. The schematic needs both the operating and reset mechanism so the retained state can be understood.

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

A distinction that matters

A latched relay retains state; a conventional monostable relay returns when its operating condition is removed.

Full reference

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