Electrical Symbols

Free electrical symbol CAD blocks in DWG format: comprehensive 2D electrical symbol libraries and AS/NZS symbol sets covering power, lighting, switchboards, starters, meters and relay coils. Drop a legend onto electrical layouts or harvest individual symbols into switchboard and single-line diagrams.

Electrical Building Design Plan Legend

Electrical CAD Symbols Library — Lighting, Power, Fire Alarm & Schedules

Electrical Circuit Meme

Electrical Distribution Device Symbols

Electrical Input and Output Device Symbols

Electrical Symbol Legend - Schematic

Electrical Symbol Legend - Single Line Devices

Electrical Symbol Legend - Single Line Equipment

Mechanical RCP Legend

Signal Device Symbols

ABOUT: A free library of CAD blocks, symbols and construction details in DWG format – free for personal and commercial use, with no registration. Files are saved in licensed AutoCAD and supplied in DWG format, so they open in almost any version of AutoCAD or other DWG-compatible CAD software. Most blocks are screened and cleaned: a PURGE and AUDIT is run, and blocks are drawn full size (1:1) on layer 0 with colors and linetypes set to ByBlock or ByLayer, inserting at 0,0,0 – so each one drops straight into your drawing and adopts its layer standards.

These simple details will be useful in any DWG compatible CAD software package. While we have created these drawings in AutoCAD, they are compatible for use in other CAD and BIM software. For example: AutoCAD LT, ActCAD, ARES Commander, ArchiCAD, BricsCAD, BricsCAD Shape, Chief Architect, CMS IntelliCAD, CorelCAD, DesignCAD 3D Max, DraftSight, GstarCAD, IntelliCAD, LibreCAD, MicroStation PowerDraft, nanoCAD, progeCAD, QCAD, Revit, Rhino, SketchUp, Solid Edge, SOLIDWORKS, TurboCAD, Vectorworks and ZWCAD.