Does anyone know of a good source for Cad blocks for the major controller manufacturers to put into electrical wiring diagrams

I'm drafting for an electrical installation company, and was specifically after Schneider and Alertons at the moment, altho I'm sure others will come up in the future.. I seem to remember Alertons offering this years ago on their website, but it's gone (

I can draw them in manually if you know of a pdf diagram, but an autocad block would be nice...

I'm planning to ask the various control guys we work with, but I've just started drafting, and really wanted to hit the ground running!

cheers