Harold:
I had a similar situation a while back with GFI the EC purchased 'mail order' from someplace in Gregs state.
They were asian, an TUV and a strange looking UL symbol on the individual package. As they started installing them and doing the testing.....defective units were plentiful. The EC made, IMHO, a smart move by stopping the installation until he got devices from a local source. Two of the GFI devices were sent to UL, and I am not aware of any follow-up.
I can't say I have come accross any of the asian items Reno mentioned. Three large townhouse complexes are in the process of changing out all the FPE panels; about 450 total units.
