Coil
Relay coil
The operating element associated with a relay and its separately drawn contacts.
Schematic
IEC · Q021218
Engaged mechanical coupling
This indication identifies engagement between the represented mechanical elements.
IEC · Engaged mechanical coupling
Autodesk IEC-60617 Symbol Preview — Mechanical coupling qualifiers; vendor family reference, not certified IEC geometry or database identifier.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
Schematic · Q021218
What it represents
This indication identifies engagement between the represented mechanical elements. The represented elements share the documented motion-transmission relationship in the engaged state. That state says nothing by itself about supply energisation or electrical contact position.
Show the driving/driven device identities and connect the engagement state to its actual feedback if used. Alternate publisher graphical forms are retained within this one concept.
How to read it
- Document the elements coupled and the applicable state condition.
- Different published graphical forms for the same engagement are kept in one concept record.
Information to show or reference
- Identify the associated device, circuit or diagram boundary.
- Document the elements coupled and the applicable state condition.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.
A distinction that matters
Different published graphical forms for the same engagement are kept in one concept record.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEC-60617 preview: Mechanical coupling qualifiers
Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content.
About this graphic
This illustration was authored independently by Elora Grid to explain the concept. It is not reproduced from a customer drawing, an official standard graphic or a manufacturer CAD file. Its correspondence to an exact IEC or IEEE symbol identifier has not been certified.
SVG and DXF downloads contain this original artwork. DXF uses unscaled drawing units; a GA envelope supplies no product dimensions, clearances or fabrication information. Original artwork is available under CC BY 4.0. Third-party references retain their own terms.
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