My electrical question is as follows: (I live in Nova Scotia)
I am installing a spa and I need an electrical GFCI disconnect panel to be
installed outside of the house where the spa will be going, and I found one
at Home Depo that's for hot tub's and spa's. But I need to know, will a
regular 40 amp breaker be OK for my electrical panel or do I need a 40 amp
GFCI breaker there as well? Thanks for any advise.
On Wed, 01 Dec 2004 16:39:46 GMT, "Ruth Boutilier"
Remember that a breaker protects everything downstream from it.
Therefore, if you have a 40 amp breaker, all wiring down stream must
be sized for 40 amps until you come to a sub panel. Its breaker
should not be greater than 40 amps. Any breakers in the sub panel
must have wiring down stream of them that has the same capacity as
each breaker, and so on. No ifs, ands or buts. If in doubt - or
even if fairly sure - please have an electrician oversee what you
are doing. You can do the work yourself if he oversees it.
If the subpanel has a main breaker, Rusty is right. The main panel
always needs a breaker to protect wiring to a subpanel. BUT in the
States (most locales, I believe), the subpanel (aka load center) does
not need to duplicate that. The subpanel only needs breakers for the
branch circuits from it. Wiring from and protected at the main panel
can connect direct to subpanel buses without a breaker.
I have installed two such load centers with lugs on the buses for
input--even had one inspected. The situation is similar for the
original main panel, that now serves as a load center only for
original K&T wiring, which I am replacing systematically. Its supply
is protected only at the new main panel, and that was installed
professionally (100A), and updated professionaly (200A). I suppose
the original panel, located in the center of the structure (not
current code for a main panel), had a main breaker near the original
service entrance before it was reconnected to its breaker in the new
firstname.lastname@example.org (Rusty) wrote in message
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