"Robert11" wrote in message
...
Hi again,

Should have asked this as part of my previous circuit breaker question,
but forgot:

Is it common or typical for an "old" house service box circuit breaker
(perhaps 25 yrs old) to go bad,
and trip by itself, even if there is nothing wrong with the circuit it is
controlling ?

What's a "typical" life for these things ?

Thanks again,
Bob

A lot of older Murray brand will do that. The internal latch that holds the
handle in the on position, just stops holding and vibrations can cause them
to turn off