Coil
Relay coil
The operating element associated with a relay and its separately drawn contacts.
Schematic
IEC · Q021209
Mechanical stop latch in neutral state
This form identifies the neutral state of the represented stop-latch mechanism.
IEC · Mechanical stop latch in neutral state
Autodesk IEC-60617 Symbol Preview — Mechanical return and interlock 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 · Q021209
What it represents
This form identifies the neutral state of the represented stop-latch mechanism. Neutral describes the represented retaining mechanism, not every electrical contact belonging to the assembly. A state table provides the relationship between latch condition and contact states.
Identify the associated mechanism and define the neutral condition in its operating sequence. Use separate contact and position references when those interfaces appear elsewhere in the schematic.
How to read it
- Keep neutral and engaged states explicit in state or sequence documentation.
- Neutral is a mechanism state, not an assertion that every contact is open.
Information to show or reference
- Identify the associated device, circuit or diagram boundary.
- Keep neutral and engaged states explicit in state or sequence documentation.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.
A distinction that matters
Neutral is a mechanism state, not an assertion that every contact is open.
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 return and interlock qualifiers
Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content.
Autodesk IEC-60617 preview: Latching-device qualifiers
Public alternate engaged/neutral latching-device tokens are consolidated with the matching mechanical state concept.
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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