Symbols · C

Capacitor

A capacitive component or bank identified with its circuit function and ratings.

SLD / Schematic · CCapacitor: original educational illustration
Original educational illustrationNot to scale · See source and graphic notes

What it represents

A capacitor representation identifies a capacitive component or arrangement in a circuit. Polarised, non-polarised, adjustable and other variants need the appropriate representation and annotations. In power drawings a capacitor bank is a system assembly, rather than merely a scaled-up generic component mark.

Ratings, discharge arrangements, switching and associated reactors or protection depend on the application and selected equipment. A symbol is an identification aid; it does not provide those design values.

How to read it

  • Identify whether the drawing denotes a component or a bank assembly.
  • Read polarity or adjustable features only where the selected variant documents them.

Information to show or reference

  • Reference the component or bank rating.
  • Identify any switching and associated protective equipment.
  • Link the equipment documentation for discharge or reactor arrangements.

A distinction that matters

A capacitor-bank representation does not identify every component of the assembled bank or establish its switching duty.

Sources you can follow

These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.

Capacitive component symbols

Public capacitor categories and variants.

Autodesk · Public reference checked 13 October 2026 · Link only

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.

Entry JSON · Entry Markdown · Last editorial update: 13 October 2026

Put the reference into a drawing workflow.

Elora Grid helps electrical teams work with drawings, specifications and equipment information. Explore the drafting workflow or join the early-access waitlist.

Explore drafting