This Siemens Panel had the 100 Amp, 240 volt main disconnect breaker crammed into the wrong size cutout. The bottom panel was covering the bottom of the breaker. It is a siemens brand breaker just like the panel but it doesn’t look like it fits right. I took a temp reading with my gun and it was the same temperature as the other breakers. My opinion is that it is the wrong breaker for this panel and a electrician should be consulted to change it.
Any advice would be appreciated