w_tom wrote:

Others are still confused. They actually think a plug-in
UPS claims protection from such surges even though the
manufacturer makes no such claim. A UPS connects appliance
directly to AC mains when not in battery backup mode. No
protection there. Protectors only work when they connect the
incoming surge to surge protection - earth ground.

While that is true, of the UPS units I've been shopping for, they have
surge protection built in as well. Check the specs.