Originally Posted by Lloydg
I worked in safety certification (UL, CSA, TUV (European), etc.) for about 20 years. In about 1990 and in accordance with NAFTA, UL was authorized to test and certify to CSA and vice versa. You can tell if UL has certified to CSA by looking at the UL mark. If you see a small "c" printed near the bottom of the UL mark it has been approved to Canadian standards. If the CSA mark has a "us" near the bottom of the CSA mark it means that CSA has tested the product to UL standards. Both these marks are acceptable by both governments. This was a very good benefit from NAFTA because is avoided the need to send a product requiring certification to both UL and CSA. Hope this might help save you some big $$. I would not rely on just the box saying it was approved, and you need to check the mark on the product. You can also call UL in Northbrook, IL. if you still have concerns.
Thank you. I will check for the small C on the Progressive. I know when I called them in the past they said only installed product passed inspections, plug in units did not pass in Canada.
I have done Ontario Hydro Special K inspections in the past for things we have built (Broadcast Installations) that were built b qualified broadcast engineers with RF training but way above a journeyman electrical knowledge level when it came to control wiring.