u/rakrunr

I am replacing the circuit breaker on my DE735. When I got it apart, I found what appears to be burn damage on the line connector (pictured).

I know very little about electronics, but this seems like a problem. This is a short cable that connects to the on/off switch box. Should I replace the cable or is this normal? Is there anything else I should be looking into?

Walnut, carved with a grinder and sander. Finished with mineral oil. Lots left to learn, but I can already tell this is going to be fun!