Coil
Relay coil
The operating element associated with a relay and its separately drawn contacts.
Schematic
IEC · HAN1S
Audible siren
A siren indication identifies an audible alarm output with the documented operating role.
IEC · Audible siren
Autodesk IEC-60617 Symbol Preview — Audible indication and protective component forms; 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 · HAN1S
What it represents
A siren indication identifies an audible alarm output with the documented operating role.
State the alarm condition and the controlling circuit.
The symbol alone does not prescribe tone pattern or evacuation meaning.
How to read it
- State the alarm condition and the controlling circuit.
- The symbol alone does not prescribe tone pattern or evacuation meaning.
Information to show or reference
- Identify the associated device, circuit or diagram boundary.
- State the alarm condition and the controlling circuit.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.
A distinction that matters
The symbol alone does not prescribe tone pattern or evacuation meaning.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
AutoCAD Electrical: Earthing, sources and surge protection
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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