xray wrote:
Usually I can figure this stuff out myself, but I don't see the answer
here and never had occasion to do it before.

In the electric box that feeds my house, I want to replace one circuit
breaker. What holds them in?
Spring pressure. Turn breaker off. Remove wire after loosening clamp
screw. Pull breaker out from the middle of box, where the two rows
almost touch. The outer edge of the breakers hook onto an edge and
hinge from there.

Jon