IEC 60617 - Graphical Symbols for Diagrams Welcome to the IEC 60617 database. IEC 60617 contains graphical symbols for use in electrotechnical diagrams. All the parts (Ed. 2 or 3) of the previously published IEC 60617 have been incorporated into this database that currently includes some 1900 symbols. The database is the official source of IEC 60617. Subscriptions and End-User Restrictions. IEC-60617 Symbol Preview | AutoCAD Electrical 2018 Except where otherwise noted, work provided on Autodesk Knowledge Network is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. Please see the Autodesk Creative Commons FAQ for more information.