SEL 3 LRET
Three-position selector returning from left
This three-position selector has a documented spring return from its left position.
Schematic
IEEE / ANSI · SEL 3 LRET
ANSI/IEEE Three-position selector returning from left form
IEEE-library form of three-position selector returning from left: this three-position selector has a documented spring return from its left position.
In plain English
What does ANSI/IEEE Three-position selector returning from left form mean?
This reference locates three-position selector returning from left in Autodesk's IEEE-oriented 3 position selector switches family. This three-position selector has a documented spring return from its left position. Other positions may be stable or have different behaviour, so the return direction must remain explicit. The public library uses HSS113L for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
A simple example
Read the operating mechanism and the contact reference state together. Cross-reference every associated contact to the same device and show which movement, signal or reset changes its condition; the symbol alone does not establish the complete switching sequence.
What the drawings help you do
Establish the rest position and the state after the left-hand command is released. Return from left is not equivalent to return from both outer positions. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.
This particular reference
IEEE-library form of three-position selector returning from left: this three-position selector has a documented spring return from its left position. Return from left is not equivalent to return from both outer positions.
- Normally open / normally closed
- The contact state in the normal condition defined for the drawing.
- Signal
- Electrical information passed between devices, rather than necessarily the main power supply.
- Rating
- A value stating the conditions for which equipment is specified.
Read the source: Autodesk IEEE Symbol Preview — 3 Position Selector Switches
IEEE / ANSI · 3 Position Normally Open Return From Left
Autodesk IEEE Symbol Preview: 3 Position Selector Switches, block HSS113L. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.
Shown as an independently authored educational illustration. Use the cited publication and drawing legend to verify the required drafting form.
Schematic · SEL 3 LRET
What it represents
This reference locates three-position selector returning from left in Autodesk's IEEE-oriented 3 position selector switches family. This three-position selector has a documented spring return from its left position. Other positions may be stable or have different behaviour, so the return direction must remain explicit. The public library uses HSS113L for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.
Read the operating mechanism and the contact reference state together. Cross-reference every associated contact to the same device and show which movement, signal or reset changes its condition; the symbol alone does not establish the complete switching sequence.
Establish the rest position and the state after the left-hand command is released. Return from left is not equivalent to return from both outer positions. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.
How to read it
- Establish the rest position and the state after the left-hand command is released.
- 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
- Label rest position
- Show return direction
- Provide position/contact schedule
A distinction that matters
Return from left is not equivalent to return from both outer positions.
Sources you can follow
These public references support the explanation and provide further detail. Their graphics and downloadable files remain with their publishers.
Autodesk IEEE Symbol Preview — 3 Position Selector Switches
Public IEEE-oriented 3 Position Selector Switches table explicitly lists HSS113L as 3 Position Normally Open Return From Left. This supports the vendor convention context, not reproduction of the publisher 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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