{"schemaVersion":1,"slug":"off-delay-normally-closed-contact","name":"Off-delay normally-closed contact","kind":"symbol","abbreviation":"TOFF NC","aliases":[],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"An off-delay NC contact returns to its documented normally-closed state after the delay following removal of the timing trigger.","description":["An off-delay NC contact returns to its documented normally-closed state after the delay following removal of the timing trigger. Its role is read from the complete timer and contact circuit."],"readingNotes":["Identify whether this delayed return affects a permissive, indication or another timer.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Link timer trigger","Show delayed return","State configured interval"],"distinction":"Contact polarity and timing direction are separate pieces of information.","facts":[{"label":"Drawing role","value":"Timed operation"},{"label":"Representation scope","value":"Functional concept; not an official standard graphic or a product footprint"},{"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-timers","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}],"related":["relay-coil","normally-closed-contact"],"artwork":"edu-off-delay-normally-closed-contact","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/off-delay-normally-closed-contact","illustration":{"url":"https://eloragrid.ai/library/illustrations/off-delay-normally-closed-contact.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-timers","title":"AutoCAD Electrical: Time-delay relays","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-DA927086-EEAF-48CB-B9B1-634A4B48C8C7.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."}]}