{"schemaVersion":1,"slug":"emergency-stop","name":"Emergency-stop operator","kind":"symbol","abbreviation":"E-stop","aliases":["emergency stop","mushroom pushbutton","emergency shutdown operator"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEC","IEEE / ANSI"],"summary":"An identified emergency-stop operator and its documented contact arrangement.","description":["An emergency-stop operator is identified by its intended function and the properties of the selected device. A schematic may show its contact blocks, actuator and reset or latching features. The drawing must connect those features to the operator description and the complete control-system design.","This educational preview identifies the concept without specifying a safety circuit. A mushroom actuator, NC contact or stop label alone does not establish the required safety performance. Use the applicable standards, risk assessment and manufacturer information for the actual implementation."],"readingNotes":["Read the operator identification together with all associated contact blocks.","Do not infer safety performance from the actuator shape or a single contact mark."],"drawingChecklist":["Identify the operator and documented reset mode.","Reference contact and mechanical characteristics.","Link the complete control-system documentation."],"distinction":"Emergency stop is a system function. A generic mushroom pushbutton depiction does not certify an emergency-stop implementation.","facts":[{"label":"Representation","value":"Operator concept and associated contacts"},{"label":"Mechanical properties","value":"Manufacturer-specific"},{"label":"Safety assessment","value":"Not provided by this illustration"}],"references":[{"sourceId":"autodesk-pushbuttons","relevance":"Public mushroom-head, latching and positive-break contact categories."}],"related":["pushbutton-nc","normally-closed-contact","control-cabinet","relay-coil"],"artwork":"emergency","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/emergency-stop","illustration":{"url":"https://eloragrid.ai/library/illustrations/emergency-stop.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"autodesk-pushbuttons","title":"Pushbutton contact and actuator variants","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-9E8890C7-7176-47DD-8700-E02A16C1670E.htm","type":"cad-reference","scope":"Momentary and latching pushbuttons, normal contact states and mushroom actuators.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public mushroom-head, latching and positive-break contact categories."}]}