Creating 2D layouts is extremely easy when you use a combination of SolidWorks and SolidWorks Electrical Schematic, commonly known as SolidWorks Electrical Professional.
Preliminary electrical schematic can be completed in the Schematic package and then models can then be inserted in 3D. Once the components are placed in SolidWorks, under the SolidWorks Electrical menu select Create 2D Drawings. Insert the necessary view.
SolidWorks will take the marks that were used in SolidWorks Electrical and it will show up onto your view. If spaced appropriately it will show up like in the image below. If adjustments still need to be made device marks can be edited.
If 3D layouts is not what you wish to work with, you have the option of creating 2D layouts out of the Standalone SolidWorks Electrical Schematic package. In order to create a 2D cabinet layout in SolidWorks Electrical, you will need to go into the Process ribbon/tab and select the 2D Cabinet layout. Once the Cabinet layout is selected, begin by selecting the option of which Location layout you want to create. Users can insert 2D footprints of components in the layout. The device marks will show up automatically as the user inserts the components out of the Cabinet layout tree on the left.