R
Resistor
A resistive component with its value and purpose documented separately.
Schematic
Symbols · HEATER
Heating element
A heating element converts electrical energy to heat in a documented circuit.
SLD / Schematic · HEATER
What it represents
A heating element converts electrical energy to heat in a documented circuit. Its supply, power rating and control/protection path need to be identified for cabinet or auxiliary-system use.
How to read it
- Trace the thermostat or control device separately from the element.
- 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 voltage and power
- Reference control thermostat
- Show overcurrent protection
A distinction that matters
A heater is a load; its thermostat is a separate switching or measurement function.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Resistors and heater-element symbols
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.
Explore related references
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.