R
Resistor
A resistive component with its value and purpose documented separately.
Schematic
IEC · HVR1R5
Resistor with disconnecting slider
This form distinguishes a movable resistor contact with a disconnecting position.
IEC · Resistor with disconnecting slider
Autodesk IEC-60617 Symbol Preview — Resistive 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 · HVR1R5
What it represents
This form distinguishes a movable resistor contact with a disconnecting position. The movable contact can leave the resistive track at its documented disconnecting position. This changes circuit continuity as well as the selected resistance.
Show the track ends, slider terminal and the off-position relationship. A generic potentiometer or variable-resistor graphic can omit this important additional operating state.
How to read it
- Show the track terminals, movable contact and the circuit condition at the off position.
- A disconnecting slider is different from a continuously connected potentiometer wiper.
Information to show or reference
- Identify the associated device, circuit or diagram boundary.
- Show the track terminals, movable contact and the circuit condition at the off position.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.
A distinction that matters
A disconnecting slider is different from a continuously connected potentiometer wiper.
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
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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