# Semiconductor power switch

Canonical URL: https://eloragrid.ai/symbols/semiconductor-power-switch
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: SSW
Drawing use: SLD, Schematic
Reference families: IEC, Manufacturer

A semiconductor power switch controls a power path electronically.

## What it represents

A semiconductor power switch controls a power path electronically. Its power terminals and control input belong to different circuits, and off-state leakage or isolation characteristics require product documentation.

## How to read it

- Do not interpret the semiconductor off state as a visible mechanical isolation gap.
- 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

- Identify input and power terminals
- Reference voltage and current ratings
- Document external isolation provision

## Important distinction

A solid-state switch is not an isolating disconnector.

## Facts

- Drawing role: Switching path
- Representation scope: Functional concept; not an official standard graphic or a product footprint
- Public vendor block reference: HCB11Q53, VCB11Q53 (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: Power semiconductor switches](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-54E4231E-F794-4527-9104-C2D7BA312077.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.