{"schemaVersion":1,"slug":"pressure-switch-nc","name":"Pressure switch NC","kind":"symbol","abbreviation":"PS NC","aliases":["HPS12","VPS12"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"A pressure-operated NC switch opens under its documented actuation condition.","description":["A pressure-operated NC switch opens under its documented actuation condition. Pressure threshold, reset behaviour and reference state are separate drawing annotations."],"readingNotes":["Read the pressure direction from the selected switch specification.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Identify pressure connection","Record operate and reset data","Show contact logic"],"distinction":"An NC pressure switch is different from a pressure transmitter producing a continuous analog signal.","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":"HPS12, VPS12 (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-nc","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/pressure-switch-nc","illustration":{"url":"https://eloragrid.ai/library/illustrations/pressure-switch-nc.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."}]}