Yup thanks I'm going to use one gauge up from what the amperage is rated
for. I am also going to isolate the neutral from the ground in the
subpanel. I just don't want to look like an idiot for the inspector. Code
here says I do not even need a main breaker in the sub because I have a
feeder breaker in the main. I thought I might as well put the sub with the
100A breaker in because it comes with a ton of assorted breakers including
an arcfault breaker for only $19 more than a smaller 60A subpanel that comes
with 4 regular breakers. Go figure.

Gary :-)


"Doug Miller" wrote in message
. ..
In article 2Omhh.501373$R63.440567@pd7urf1no, "Gary"
wrote:
I want to connect a second electrical panel in my house. I am going to
run
it from a 40 amp breaker in my main panel. The second panel I bought has
a
100 amp main breaker in it. Is it code to keep that breaker in there?

Sure. Any overcurrent would trip the 40A breaker feeding the subpanel.

You *do* plan on running a 4-wire feeder cable to the subpanel, don't you?
(Black, red, white, and bare wires) Also make sure that (a) the subpanel
has
two separate bus bars for neutral and ground, (b) they are not connected
to
each other, (c) the neutral bus is NOT connected to the chassis of the
subpanel, and (d) you connect the white feeder wire to the neutral bus,
and
the bare wire to the ground bus.

I assume it is redundant and would only act as a switch if I wanted to do
some
servicing in the 2nd panel.

Correct.



--
Regards,
Doug Miller (alphageek at milmac dot com)

It's time to throw all their damned tea in the harbor again.