Coil
Relay coil
The operating element associated with a relay and its separately drawn contacts.
Schematic
IEC · Q020404
Two-way rotary-motion qualifier
This qualifier identifies a mechanism capable of rotary movement in either direction.
IEC · Two-way rotary-motion qualifier
Autodesk IEC-60617 Symbol Preview — Rotary force and motion 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 · Q020404
What it represents
This qualifier identifies a mechanism capable of rotary movement in either direction. Both directions of rotation are part of the represented mechanism. The reversal can be controlled electrically or mechanically, depending on the selected equipment.
Identify the two command paths and any permitted transition between them. Interlocks and feedback should be shown as actual circuit relationships rather than inferred from the double arrow.
How to read it
- Cross-reference forward/reverse commands and any position limits.
- Reversible rotation and unrestricted continuous rotation are different attributes.
Information to show or reference
- Identify the associated device, circuit or diagram boundary.
- Cross-reference forward/reverse commands and any position limits.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.
A distinction that matters
Reversible rotation and unrestricted continuous rotation are different attributes.
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: Rotary force and motion 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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