{"schemaVersion":1,"slug":"pressure-switch-no","name":"Pressure switch NO","kind":"symbol","abbreviation":"PS NO","aliases":["HPS11","VPS11"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"A pressure-operated NO switch closes when its documented pressure condition actuates the mechanism.","description":["A pressure-operated NO switch closes when its documented pressure condition actuates the mechanism. Increasing or decreasing pressure behaviour must be identified rather than inferred from NO."],"readingNotes":["Specify the actuation direction and reset differential from product data.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Label monitored pressure","State operate and reset conditions","Identify contact terminals"],"distinction":"NO is the unactuated contact state; high-pressure or low-pressure describes the process condition.","facts":[{"label":"Drawing role","value":"Actuated indication"},{"label":"Representation scope","value":"Functional concept; not an official standard graphic or a product footprint"},{"label":"Public vendor block reference","value":"HPS11, VPS11 (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-pressure-temperature","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}],"related":["plc-io","normally-open-contact"],"artwork":"edu-pressure-switch-no","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/pressure-switch-no","illustration":{"url":"https://eloragrid.ai/library/illustrations/pressure-switch-no.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-pressure-temperature","title":"AutoCAD Electrical: Pressure and temperature switches","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-46061E42-55B7-4804-8D50-C31DF292F01D.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."}]}