# Three-position maintained selector

Canonical URL: https://eloragrid.ai/symbols/three-position-maintained-selector
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: SEL 3 HOLD
Drawing use: Schematic
Reference families: IEC, Manufacturer

A three-position maintained selector stays at the selected position until manually moved.

## What it represents

A three-position maintained selector stays at the selected position until manually moved. The schematic needs a contact-state schedule covering all three positions so modes such as local, off and remote are unambiguous.

## How to read it

- Read each contact against the complete position table rather than the operator label alone.
- 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

- Name all positions
- Provide contact-state table
- Cross-reference terminal numbers

## Important distinction

Three maintained positions differ from a selector that spring-returns to centre.

## Facts

- Drawing role: Position selection
- Representation scope: Functional concept; not an official standard graphic or a product footprint
- Public vendor block reference: HSS113, VSS113 (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: Three-position selectors](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-D8675B9D-9CBF-4B7F-8F09-2444779614D0.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.