Good morning Pat. Inserting panel components from multiple catalog happens on every panel design and for a variety of different reasons, the most common being for fuse holders. We do this so during our schematic build every component is accounted for instead of having to go back through the project to count how many fuse holders (or other components). We have 8 people doing design this immediately affects, however the biggest impact is during startup. For our main issue, if fuses aren't shown on the BOM it could cause delays and as most projects go the timeline is normally very tight. Common fuses (like the 1/4 inch) aren't so bad but for specialty fuses it could delay to re-order if not in stock. We also use this for a variety of other reasons, like handle type for disconnect. We have options for handle type so we use that in multiple catalog to avoid many different assembly codes.
For costs to our company, that is a harder one. The direct costs for these parts are not too bad. For larger projects, it would cost more time to catch these items and if it doesn't get caught during our tech review it could delay install/startup.
We are just thinking since there is the option to insert multiple catalog items it shouldn't mess up the process and BOM. For now we will just insert everything, but that causes some more time to design either from inserting components to creating additional symbols so they can be inserted.
We just seems to be having issues finding the best process for the BOM. It seems this process (as you explained in your reply) also impacts the sorting of the BOM that I had a previous case with.
We know there is a lot of design and programming behind the BOM and inserting components but any help with these would be very much appreciated here so thank you for your help. If you need anything else let me know.