# Maintained normally-open pushbutton Canonical URL: https://eloragrid.ai/symbols/maintained-normally-open-pushbutton Publisher: Elora Grid Updated: 2026-10-13 Lookup label: PB NO HOLD Drawing use: Schematic Reference families: IEC, Manufacturer A maintained NO pushbutton stays in its actuated condition until the documented return operation. ## What it represents A maintained NO pushbutton stays in its actuated condition until the documented return operation. The control sequence must account for the retained input rather than assuming a momentary pulse. ## How to read it - Identify the release method and any reset interlock. - The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation. ## Information to show or reference - State retained position - Document return action - Show contact reference ## Important distinction A maintained pushbutton is different from a spring-return momentary operator. ## Facts - Drawing role: Manual operation - Representation scope: Functional concept; not an official standard graphic or a product footprint - Public vendor block reference: HPB11S76, VPB11S76 (Autodesk identifiers; not IEC symbol numbers) - Identifier status: 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. ## Public references - [AutoCAD Electrical: Illuminated push buttons](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-7B13B543-97A4-4A7E-8D08-49386A153A33.htm) — Autodesk. Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic. ## Graphic scope Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.