I would not want to use a BS1363 on a North American 240V system, since the BS1363 design makes assumptions about which conductor is grounded (as exemplified by the fuse position). OTOH, the Schuko is more likely usable (if one can be found with UL listing or the local AHJ accepts the European listing) because no grounding assumption is made, and switched appliances have to treat both conductors as ungrounded.
If it's for a power strip, it should be OK, other than for the higher voltage MOVs wired between conductors and the grounding wire on surge protection versions. Some surge protection experts have suggested that MOV ratings be doubled, anyway (to reduce MOV burnouts along with the suggestion that the doubled rating won't affect most devices). So maybe that is moot.
Now I just need to find a mid-size UPS (between 2000 and 2800 VA) that can work on the North American 240V system.
