Lew Hodgett wrote:
BeenWetter wrote:
Hi-

I am installing an isolation transformer and want to isolate the ground
from the shoreside supply. The manual from Charles states that I need
a 2-pole GFCI circuit breaker.

Why?
Their exact language is "Main Shore Power Disconnect Circuit Breaker
with OFP" I've found no reference to "OFP" anywhere (I sent an email
to them querying the abbreviation last week, but have received no
reply). Perhap it is not a GFCI.
The reason is that the shore ground is not going to be used any further
than the power inlet connector. This eliminates current flow through
the shoreside ground wire.