The U013 is a 30 amp Power Outlet from Midwest that has a 30 amp receptacle only, no breaker.
It is 120/240 volt and is NEMA 3R rated for outdoor use. It has a stay-open door and can be locked.
Dimensions: 5″ x 7″
Simply a receptacle for 30 amp service, the U013 does not have a breaker.