- Open a new drawing using the appropriate symbol name.
- Insert an exploded copy of an existing AutoCAD Electrical toolset symbol that somewhat resembles what you need in the new symbol. Consider the number of wire connection points, rating attributes, and whether your new symbol is a parent symbol (attribute TAG1) or a child symbol (attribute TAG2).
- Clean up the graphics. Keep everything on layer 0.
- Reuse attribute definitions from the exploded symbol. Reposition them as required. Make sure that you keep terminal pin number text paired with its wire connection attribute (the last two digits of each attribute name must match, "X4TERM01" wire connection point attribute matched with "TERM01" terminal pin number text attribute).
- Use DDEDIT to change the TAG1 or TAG2 and the FAMILY attribute values to the family code. Insert any pre-defined terminal pin, description, or catalog number attribute values.
- Delete unneeded attribute definitions and graphics.
- Save your work to the appropriate library or user folder (right-click a project name inside the Project Manager and select Settings to find the full path). To test it, call up a new or existing AutoCAD Electrical toolset drawing. Try to insert your new symbol into an existing piece of wire. You can manually enter the file name of the new symbol using Type it on the main icon menu page.