# ANSI/IEEE Three-position selector returning from left form Canonical URL: https://eloragrid.ai/symbols/ansi-three-position-selector-returning-from-left Publisher: Elora Grid Updated: 2026-10-28 Lookup label: SEL 3 LRET Drawing use: Schematic Reference families: IEEE / ANSI, Manufacturer ## Symbol convention Convention: IEEE / ANSI Form: 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. Related representation: [Three-position selector returning from left](https://eloragrid.ai/symbols/three-position-selector-returning-from-left) 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. ### Terms - 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. Concept diagram: Identify the device and form → Read the connections and state → Check the equipment reference A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram. - [Autodesk IEEE Symbol Preview — 3 Position Selector Switches](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-5B722789-B342-4708-8671-579360D15DCA.htm) ## 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 ## Important distinction Return from left is not equivalent to return from both outer positions. ## Facts - Convention evidence: Autodesk IEEE Symbol Preview: 3 Position Selector Switches; published form: 3 Position Normally Open Return From Left. - Public vendor block: HSS113L. Vendor library token, not an IEEE symbol number. - Drawing role: Position selection - Identifier status: The short label is a functional lookup label, not an assigned IEC or IEEE symbol number. Any separately listed Autodesk code is a verified vendor block name. - Artwork scope: Original educational geometry. Exact standard graphics, product ratings and terminal pinouts are not certified. ## Public references - [Autodesk IEEE Symbol Preview — 3 Position Selector Switches](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-5B722789-B342-4708-8671-579360D15DCA.htm) — Autodesk. 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. ## Graphic scope Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.