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?

I have not found any marine breakers
for 30 amp 120v that are also ground fault. Anyone have any
information on a manufacturer? Or does one use residential vice marine
in this instance?

Marine c'bkrs are hydraulic devices.

Shore side c'bkrs are thermal-magnetic.

The only thing they have in common is that they are both c'bkrs.

They are not interchangeable.

Lew