I have one of these thin dual circuit breakers Can I only

Physical Appearance: These breakers are larger than single-pole breakers and occupy two slots in the electrical panel They have two handles

Use tandem breakers and consolidate two 120 volt circuit into 1 breaker slot A single Tandem breaker will not supply 240 volt Tandem must be same brand

two slot shelving The advantage of this type of breaker is it only takes one slot on the panel It has two screws, one for each of the hot wires on the two

two slot toaster slot This key will unlock a series of other key slots , each containing one breakers so that they cannot be opened until after the oil circuit breaker