Eddy A typical 200 amp panel with a 100 amp stab rating can legally be equipped with 200 amp breaker assuming it is allowed by the manufacturer.

They get around the 100 amp per stab rating by using 2 stabs per phase.

If the breaker was for example installed at the top it would use circuit positions 1,3, and 2,4.

Bob Badger
Construction & Maintenance Electrician
Massachusetts