Q021210
Mechanical stop latch in engaged state
This form identifies an engaged stop-latch mechanism.
IEC
IEEE / ANSI · Q021210
ANSI/IEEE Mechanical stop latch in engaged state form
IEEE-library form of mechanical stop latch in engaged state: this form identifies an engaged stop-latch mechanism.
In plain English
What does ANSI/IEEE Mechanical stop latch in engaged state form mean?
This reference locates mechanical stop latch in engaged state in Autodesk's IEEE-oriented mechanical controls family. This form identifies an engaged stop-latch mechanism. The state describes mechanical retention. The affected device can have separate electrical contacts reporting that position, so engagement is not equivalent to energisation. The public library uses Q021210 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
A simple example
Read the operating mechanism and the contact reference state together. Cross-reference every associated contact to the same device and show which movement, signal or reset changes its condition; the symbol alone does not establish the complete switching sequence.
What the drawings help you do
State which movement is restrained and what documented release action changes the condition. Where feedback is used, cross-reference its actual contact rather than treating the latch mark as an electrical output. State which movement is restrained and what releases the latch. An engaged latch does not automatically indicate a circuit is supplied with operating power. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.
This particular reference
IEEE-library form of mechanical stop latch in engaged state: this form identifies an engaged stop-latch mechanism. An engaged latch does not automatically indicate a circuit is supplied with operating power.
- Normally open / normally closed
- The contact state in the normal condition defined for the drawing.
- Signal
- Electrical information passed between devices, rather than necessarily the main power supply.
- Rating
- A value stating the conditions for which equipment is specified.
Read the source: Autodesk IEEE Symbol Preview: Mechanical Controls
IEEE / ANSI · Stop Latch Engaged
Autodesk IEEE Symbol Preview: Mechanical Controls, block Q021210. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
Schematic · Q021210
What it represents
This reference locates mechanical stop latch in engaged state in Autodesk's IEEE-oriented mechanical controls family. This form identifies an engaged stop-latch mechanism. The state describes mechanical retention. The affected device can have separate electrical contacts reporting that position, so engagement is not equivalent to energisation. The public library uses Q021210 for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
Read the operating mechanism and the contact reference state together. Cross-reference every associated contact to the same device and show which movement, signal or reset changes its condition; the symbol alone does not establish the complete switching sequence.
State which movement is restrained and what documented release action changes the condition. Where feedback is used, cross-reference its actual contact rather than treating the latch mark as an electrical output. State which movement is restrained and what releases the latch. An engaged latch does not automatically indicate a circuit is energised. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.
How to read it
- State which movement is restrained and what releases the latch.
- An engaged latch does not automatically indicate a circuit is energised.
Information to show or reference
- Identify the associated device, circuit or diagram boundary.
- State which movement is restrained and what releases the latch.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.
A distinction that matters
An engaged latch does not automatically indicate a circuit is energised.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEEE Symbol Preview: Mechanical Controls
Public IEEE-oriented Mechanical Controls table explicitly lists Q021210 as Stop Latch Engaged. This supports the vendor convention context, not reproduction of the publisher graphic.
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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