ECN Forum Forums Photo Discussion Forums Electrical Nostalgia Strange Old Breaker

Cliff,
That "stiff card-board" wouldn't happen to be mica would it?
Or something mica-based?.
It's used in toasters to hold the nichrome elements in place and makes a pretty good insulator that can withstand quite a bit of heat (handy in a toaster).
I have some mis-givings about CB's that merely clip onto busbars, as in I feel that the connection can never be as good as a solid screwed connection or the like.
Has there ever been a problem with the joint between clip and busbar ever overheating when a lot of current is drawn through the breaker?.
Just inquisitive.