Hi E2E,
UL's reply to ISO7721FD safety regulations is as follows
Non-Optical Isolating Devices can only be accepted if they comply with IEC/EN62368-1.
If only VDE 0884 only is not accepted, the above are the requirements of TUV/RH
UL62368 directly accepts the UL standard, and Demko CB 62368 can only use materials that meet VDE 0884, but this part is not accepted if you want to transfer to TUV.
Do you have the report of IEC/EN62368-1 for this material? thanks.