After helping a neighbor select a replacement oven, I took the time to look at what we have at home. In 1991 the house was built with built in double ovens fed with a 50 amp breaker and #6 AWG cable to a junction box behind the double ovens. The previous owner replaced the 1991 ovens in 2003 with a nice GE Profile unit that has a specification for a 30 amp breaker.
I had a spare 30 amp and went to install it but realized quickly that the #6 AWG had no chance at all to fit into the 30 amp breaker lugs.
Since the typical use for a 30 amp breaker would be with #10 AWG wire, my situation becomes problematic.
Is there an adapter that can reduce 6 to 8? It appears that 8 will fit. Is there another option? It is an Eaton CH type breaker.

 

Not really an adapter. Just use #10 pigtails on the two #6 hots.

 

The 30 amp ch230 breaker I have is sized for #14 down to #8 awg. I noticed that the CH235, a 35 amp breaker, is sized for as low as a #2 awg wire. There is very little room in the panel near the breaker connections. Would an extra 5 amps be all that incorrect? If it is, I will try to make up the pigtails and squeeze it in.

 

it can be anywhere in the panel there is room. It could even be in a J-box just outside the panel.

 

Went to the big box store to get some pigtail fabrication parts and did a quick look at the Eaton CH230 breakers. They changed the design! On the side of the breaker they list all wire sizes and torque specs. My older CH230 would take a #8 but this new one takes a #4. Same part number but it is new and improved. Bought it and installed in minutes.
I do find it odd that the design would be so different but the part number is the same. Worked out good for me.