Coil
Relay coil
The operating element associated with a relay and its separately drawn contacts.
Schematic
IEC · Q021313
Key-operation qualifier
A key-operation qualifier identifies a mechanism requiring the specified key action.
IEC · Key-operation qualifier
Autodesk IEC-60617 Symbol Preview — Operating-device and function 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 · Q021313
What it represents
A key-operation qualifier identifies a mechanism requiring the specified key action. A key may control whether a mechanism can be moved or which positions are available. That access role is separate from the contact state produced by the movement.
Identify the keyed operator and any related locks through their tags. For an interlocking sequence, reference the sequence document instead of relying on one key-operation mark.
How to read it
- Cross-reference the key sequence and any related locking devices.
- A keyed actuator and a trapped-key interlock perform different documented roles.
Information to show or reference
- Identify the associated device, circuit or diagram boundary.
- Cross-reference the key sequence and any related locking devices.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.
A distinction that matters
A keyed actuator and a trapped-key interlock perform different documented roles.
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: Operating-device and function 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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