# Normally open pushbutton

Canonical URL: https://eloragrid.ai/symbols/pushbutton-no
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: PB NO
Drawing use: Schematic
Reference families: IEC, IEEE / ANSI

A pushbutton contact normally shown open before actuation.

## What it represents

A normally open pushbutton combines an operator-actuated mechanism with a contact shown open in its defined normal state. Momentary and maintained or latching operation are separate characteristics that must be described explicitly.
Control schematics should identify both the contact function and the operator-facing purpose. A start label is a circuit-specific use, not an intrinsic property of every NO pushbutton. Multiple contact blocks can belong to a single actuator.

## How to read it

- Read the actuator description and contact-block association.
- Check whether the operating mode is momentary, maintained or latching.

## Information to show or reference

- Identify the actuator and contact terminals.
- State the intended operating mode.
- Link additional contact blocks to the same operator device.

## Important distinction

A NO contact symbol by itself does not identify the pushbutton actuator or its mechanical operating mode.

## Facts

- Normal contact state: Open
- Operating mode: Momentary or maintained; specify explicitly
- Actuator purpose: Circuit-specific label
- Public Autodesk reference names: HPB11, VPB11 (vendor identifiers, not IEC symbol IDs)

## Public references

- [Pushbutton contact and actuator variants](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-9E8890C7-7176-47DD-8700-E02A16C1670E.htm) — Autodesk. Public NO pushbutton and operating-mode variants.

## 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.