{"schemaVersion":1,"slug":"latched-key-operated-switch","name":"Latched key-operated switch","kind":"symbol","abbreviation":"KEY HOLD","aliases":["HPB11KSL","VPB11KSL"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"A latched key-operated switch retains its commanded position according to the selected mechanism.","description":["A latched key-operated switch retains its commanded position according to the selected mechanism. The drawing should specify how the latched position is released and where the key is removable."],"readingNotes":["Separate the mechanical retention from any electrical seal-in circuit.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["List stable positions","Show reset action","Document key-removal constraints"],"distinction":"Mechanically latched operation is different from a relay holding circuit.","facts":[{"label":"Drawing role","value":"Manual operation"},{"label":"Representation scope","value":"Functional concept; not an official standard graphic or a product footprint"},{"label":"Public vendor block reference","value":"HPB11KSL, VPB11KSL (Autodesk identifiers; not IEC symbol numbers)"},{"label":"Identifier status","value":"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."}],"references":[{"sourceId":"pub-symbol-misc-switches","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}],"related":["pushbutton-no","pushbutton-nc"],"artwork":"edu-latched-key-operated-switch","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/latched-key-operated-switch","illustration":{"url":"https://eloragrid.ai/library/illustrations/latched-key-operated-switch.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-symbol-misc-switches","title":"AutoCAD Electrical: Level, flow, keyed and measurement switches","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-1FB94435-C954-4479-BD97-25796DB8F728.htm","type":"cad-reference","scope":"Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}]}