{"schemaVersion":1,"slug":"off-delay-normally-open-contact","name":"Off-delay normally-open contact","kind":"symbol","abbreviation":"TOFF NO","aliases":[],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"An off-delay NO contact retains the documented operated state for an interval after the timer trigger is removed.","description":["An off-delay NO contact retains the documented operated state for an interval after the timer trigger is removed. The actual timer timing chart establishes the switching sequence."],"readingNotes":["Check the output's state during supply loss separately from normal trigger removal.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Identify timer reference","Label delayed release","Reference supply-loss state"],"distinction":"Off-delay release requires a stated sequence; the NO label alone only identifies the reference contact state.","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-open-contact","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/off-delay-normally-open-contact","illustration":{"url":"https://eloragrid.ai/library/illustrations/off-delay-normally-open-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."}]}