Coil
Relay coil
The operating element associated with a relay and its separately drawn contacts.
Schematic
Symbols · K AC
AC relay coil
An AC relay coil is intended for a specified alternating-current control supply.
Schematic · K AC
What it represents
An AC relay coil is intended for a specified alternating-current control supply. Voltage and frequency form part of its coil rating and cannot be inferred from the relay tag.
How to read it
- Identify the actual control-supply frequency and voltage.
- The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation.
Information to show or reference
- State coil voltage and frequency
- Label coil terminals
- Link contact references
A distinction that matters
AC coil suitability does not mean its contacts can switch every AC or DC load.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Relays and contacts: public symbol reference
Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source 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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