Even if you held a ceiling fan to the most strick motor disconnect rules, the type of fan you are refering to always has a switch on the unit to shut off the fan (otherwise the fan would run constantly without a wall switch). Listed pieces of equipment are allowed to have a unit-mounted, factory-installed switch count as a motor disconnect. So since the disconnect doesn't have to be separate from the unit on larger scales then why do you figure a small unit might need it?
