If you would like to build the symbol just like the one in the attachment, there is one neat trick you can do.
Save the pdf- file of your symbol somewhere, then right click it and copy it. (Or select it and Ctrl+C)
Go into autocad Electrical and start a new drawing, right click in the drawing area, extend clipboard and choose paste (Or Ctrl+V)
autoCAD now prompts you for witch page to select. Press enter since your pdf only has one page.
Click somewhere in the drawing area and chose orientation.
The picture of the device you want is now inserted.
Go to the home tab and, with help of the standard autocad commands like line, circle, text, squares etc. draw over the picture just inserted. If you click the inserted pdf, you get the opportunity to adjust the file, for example fade it so for it to be easier to see where you have already drawn.
autoCAD should be able to sense snap opportunities in the pdf- drawing.
When you have drawn all geometry you want, delete the pdf underlay, scale your model if necessary, and start the Symbol builder tool under the schematic pane.
Insert as many connection points you need and save the block.
