"Cheri" gserviceatinreachdotcom writes:

Sharp Carousel 1200 watts. I have it plugged into a different plug,
and it's working fine.

Probably a bad breaker then. It should supply up to 1800 W (15 A at 120
V) without tripping.

I once lived in a house where a 1000 W toaster would occasionally trip
a particular kitchen circuit breaker. The toaster wasn't drawing too
much current (I checked) so I replaced the breaker. Never tripped
again.

Breakers do fail.

Dave