In these thousands of panels like mine that was installed in the '60's
and are still in production and being sold today, the breaker marked
MAIN only cuts off the 110V circuits that are below it. All the 220V
breakers above it and the buss for them is still hot when the MAIN
breaker is off. None of the 220 breakers say MAIN, and even if they
did, the buss bars are still hot. People that don't understand how
panels are wired really need to get an electrician when it comes time
to add things to the service panel.

Tom J

RBM wrote:
The Nec requires up to six service disconnects. If you only have one
, it kills everything. If you have more than one, you need to shut
them all to kill everything

"Tom J" wrote in message
. net...
RBM wrote:
By code, it has to have at least one

But by code, the main doesn't necessarly kill everything in the
panel. Tom J
who has 1 of thousands like that