Create a library symbol
AutoCAD Electrical uses stock AutoCAD blocks and attributes in its library symbols. The symbols can be any size and width. You do not have to edit an external support file or database to register a symbol for use in an AutoCAD Electrical wiring diagram drawing.
Note: You can also use the Symbol Builder tool, but the quickest way to create a symbol might be to start with an existing AutoCAD Electrical compatible symbol. Start with a copy of a similar type and then modify to suit. Avoid deleting the existing attribute definitions. Reposition and edit their default values as required.
Tips and Hints
Avoid putting wire pigtails on your new symbols. Pigtails can defeat the AutoCAD Electrical SCOOT command and automatic wire numbering when two symbols with pigtails bump up against each other. A wire connection pigtail is mandatory when you insert a short pigtail at a wire connection point that has no other visible symbol geometry nearby since AutoCAD Electrical must see something tangible on a symbol at a wire connection point.
The AutoCAD Electrical library symbols generally have their origin points centered between the first (or only) pair of wire connection point attributes. Though it is not mandatory, it helps AutoCAD Electrical determine the correct orientation for alignment with an underlying wire at insertion time.
There are no restrictions. Every symbol can have a different width. At insertion time the width of the symbol is determined by reading the locations of its wire connection attributes (attributes with name X?TERMn).
Wire connection points
A symbol can have hundreds of connection points and a terminal pin number attribute tied to each (use suffix codes beginning with "01" and ending with "ZZ").
Component description text
You can insert three lines of description text up to 60 characters long. The attribute names are DESC1, DESC2, and DESC3 and generally appear on both parent/stand-alone and child contact symbols. You can insert additional DESCn attributes on your symbol and edit them with any attribute editing tool, but AutoCAD Electrical does not process them.